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Freelance USB Electronics specialists

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$123 hourly
Stephen A.
- 5.0/5
- (85 jobs)
🏆 Top Rated Product Developer ( I've developed my own products || I'm now helping others on the Upwork platform ) 🏠 I have a Small Home Laboratory to develop/debug prototype boards for your product 💭 I'm a native English speaker My name is Stephen, and I have 25+ years in product development, including 13 years at Microchip in roles like Test Engineer, Design Engineer, Silicon Validation, and Applications Engineer. I specialize in developing products from concept to working systems. I can handle both hardware and software or work flexibly on specific areas like architecture and hardware design. I’ve developed two successful products: (1) KEYKatcher hardware keylogger – A device plugged into a PS/2 keyboard port to record and play keystrokes. It was popular among parents for monitoring children's computer use, with tens of thousands sold. Sales declined as PS/2 ports became obsolete (2) TightWatt pool timer – An intelligent controller for swimming pool motors, featuring a year-round algorithm. It was awarded a patent and gained national distribution. Through all the product development, I’ve created a system for planning and designing working products. This system reduces costs ( by reducing mistakes ). I frequently make product improvements in 1️⃣ Lowering energy usage: important in battery-powered products 2️⃣ Increasing performance: increasing sample rates or changing communications protocols 3️⃣ Lowering product cost: making full use of the microcontroller peripherals to reduce external components I have completed more than 70 projects on Upwork but to check my capabilities or skills, you can check out the following projects: ➡️ Hardware Prototype Design for Plant Monitor Product using ESP-32 ➡️ Microchip ATtiny202 Code Development ➡️ Energy Storage Monitoring System ➡️ BM83 Bluetooth Application Schematic ➡️ Embedded System with PIC Microcontroller & Accelerometer ➡️ PCB Power Usage Optimization ➡️ TI MSP430 Development Additional Skills: ➕ Leading-edge technologies such as USB/USB-C, Lithium Battery Charging, LED and Color Mixing, I2S Digital Audio, and Analog Measurements ➕ Common Communication Busses: USB, RS-232, RS-485, CAN, I2C, SPI, Infrared ( with carrier ) As mentioned above, I have a small home laboratory where I have all the tools I need to develop/debug prototype boards for your product. This includes: ⚙️ Multiple programmers for Microchip, Atmel, and TI parts ⚙️ Logic analyzers to quickly find issues with communication busses such as I2C, SPI, UART, I2S, …. ⚙️ A “power profiler” with picoAmp range ( yes, picoAmp, a trillionth of an Ampere ) for power optimization of low-power products ⚙️ A reflow oven for assembling prototype PCBs ⚙️ Inspection equipment for verifying PCB assembly ⚙️ A fellow Upwork contractor is available to do the physical assembly work. She works at a much lower rate than me and has the patience to hand-populate / hand-solder prototype boards Some electronic inventory is on hand. I may have all the components in-house to complete your project Feel free to contact me through UpWork. Best Regards, Stephen

USB Electronics
Microcontroller Programming
Software Architecture & Design
MSP430
Microcontroller Design
Embedded System
PCB Design
Hardware Prototyping
PIC16
Circuit Design
C
Assembly Language
Electrical Engineering
$98 hourly
Qian J.
- 5.0/5
- (114 jobs)
Highly experienced and skilled in linux system, linux kernel and linux system programming. I had served in NXP semiconductor for 7 years, and worked in linux field for more than 15 years. Linux Kernel - Subsystem: KVM Virtualization, Filesystem, Network, USB, Linux Video - Debugging: Performance, System Analysis, Software Debugging, OOPS Embedded Linux - Frameworks: OpenWRT, Yocto, Android - Device Driver: USB, XHCI, WIFI, LTE, Network, Camera Linux System Development - System: Ubuntu, Centos, Archlinux, Raspberry pi, Orange pi - Network: VPN, VXLAN, IPTABLE, Router, Wireguard - Virtualization: Qemu, Libvirt, Virtualbox, Docker, K8s Programming Skills - C/C++ - Bash/Makefile - Android - Python

USB Electronics
Private Cloud
Ubuntu
Golang
Network Engineering
Linux System Administration
System Programming
Performance Optimization
Troubleshooting
Cloud Computing
Kernel-based Virtual Machine
Kernel
Linux
Embedded C
Embedded Linux
C
$25 hourly
Mohamed A.
- 5.0/5
- (6 jobs)
Hi there! I'm an experienced Embedded Systems Engineer with a strong background in Embedded Systems Engineering. With a bachelor's degree in electrical engineering, I have acquired a solid foundation in the field and developed a passion for working on cutting-edge technologies. My expertise lies in software design and development for embedded systems, particularly in real-time operating systems (RTOS). I have hands-on experience in designing, implementing, and optimizing software solutions for various embedded platforms, ensuring efficient and reliable performance. I am well-versed in utilizing Altium Designer, a leading software tool for hardware development, to create robust and innovative embedded systems. I have successfully designed and implemented complex PCB layouts, integrating microcontrollers, sensors, and other components seamlessly. One of my key strengths is my extensive knowledge of USB development. I have worked on multiple projects involving USB interfaces, including device drivers, firmware development, and protocol implementation. I am well-versed in USB standards and have a deep understanding of the intricacies of USB communication. Throughout my career, I have proven my ability to deliver high-quality results within tight deadlines. I am meticulous in my work, paying close attention to detail while maintaining a big-picture perspective. I am a proactive problem-solver and enjoy collaborating with cross-functional teams to tackle complex challenges. If you're looking for an Embedded Systems Engineer who can bring your ideas to life, optimize system performance, and ensure seamless hardware-software integration, I'm here to help. Let's discuss how I can contribute to your project and exceed your expectations.

USB Electronics
UML Diagram
Internet of Things
CAN Bus
LoRa
WiFi
FreeRTOS
Real-Time Operating System
Embedded Linux
Bluetooth
ARM Microcontroller
Embedded System
C++
Embedded C
C
$65 hourly
Jim W.
- 4.7/5
- (128 jobs)
Electronic design services for all industries and products. Develop hardware, embedded firmware and PCB layouts for all types of projects. Provide value added service to companies and individuals looking to develop new products to bring their ideas to reality at a very reasonable cost. Extensive electronic design and manufacturing background to assist getting your project manufactured worldwide. Over 40 years experience in video, automotive, military, medical, aerospace, consumer, laboratory, sporting, gaming, vending, security, agricultural, law enforcement, test equipment products and other industries. Hardware designs include various sensors such as accelerometers, temperature, motion, rotary encoders, magnetic, pressure, flex, proximity, and touch. Controllers for DC motors, servos, linear actuators, and stepper motors. Communication designs and firmware for Bluetooth, USB2.0, USB3.0, LoRa, Wifi, POE, RS232, RS-485, CAN Bus and Zigbee. Design of hardware and firmware utilizing variousf 8, 16 and 32-bit microcontrollers from Microchip, Atmel, STMicroelectronics, ARM, Cypress and many others. Custom add-on boards for Arduino, STM Nucleo, Raspberry Pi and standalone custom boards from various development paltforms available. PCB layouts of all shapes, sizes and complexity. Single layer through 10 layer PCB layouts. SMT components including fine pitch package layouts, BGA, multilayer, blind, buried and micro vias. Experienced with design and layouts for RS232, Wifi, ethernet, Bluetooth, LoRa, RS-485, CAN Bus, USB2.0, and USB 3. Primary PCB software used is Eagle with experience in many others such as Altium, OrCad, PCAD, DipTrace, and KiCad. As a value added service, small volume assembly is available to get the first prototypes assembled for quick evaluation. All engineering work completed in New Jersey.

USB Electronics
Analog Electronics
Circuit Design
Design for Manufacturing
Integrated Circuit
Electronic Design
Digital Signal Processing
PCB Design
Digital Electronics
Mechanical Engineering
$150 hourly
Robert G.
- 5.0/5
- (108 jobs)
I have 40 years of experience in business and technology related industries. My experience in the Pharmaceutical industry alone exceeds 25 years. I have been responsible for the creation of a number of business solutions from small business to worldwide corporations. I have dealt with a range of clients from senior executives to front line clerks. Every project I have been involved in has been a success. During the past 30 years, I have guided my corporation through years of success as an independent consultant, a task that is not achieved by many in the industry. Recently, I have developed a web based application for the Victims’ Advocates in the Surprise Police department. The system maintains interactions with the advocates and their clients. The application utilizes MySQL databases as well as PHP technologies to provide a very robust tool for the advocates. As part of a volunteer project, I have adapted Raspberry Pi devices to work with a VOIP product (Mumble) to help the Civil Air Patrol more efficiently communicate with their staff during mission critical events. I created the entire server structure to process all user management as well as the setup of the Mumble server. Again, MySQL, PHP and python were some of the tools utilized. I have revolutionized several pharmaceutical companies to properly manage their sales and promotional marketing budgets during the last 25 years. The last development introduced new procedures through extensive change management so they could manage a budget approaching 1 billion dollars. The resultant technology solution that I implemented managed over 3500 projects and affected over 350 end users in the past year. The system managed both production schedules as well as budgets. In addition, it interfaced directly with SAP to tightly integrate all financial data as well as purchase activity. I designed and developed a web-based system to manage all of the Field Sales promotional spending for over 4000 sales representatives. The funds and budgets were integrated into the budget management system and thus help increase sales revenues by timely use of budget dollars. I have worked with one of the leading genetic research branches of a large pharmaceutical company for over 15 years. The tasks accomplished have been in a wide range of disciplines including laboratory system development, legal tracking, research budget management and product sales support and web site development. I have designed and developed a system to manage all of the purchases of bulk cement for the world’s third largest cement manufacturer (at that time) for sales in the United States. The system integrated all the sales with the general accounting system and produced all the accounts receivable documents. I also provided technical support to their staff and installed and maintained various network configurations in extreme work environments. I have worked various other industries throughout the United States. I have worked in the governmental arena (Federal and State), a private world-wide consultant firm, a computer manufacture’s software development area and a wide variety of private industries. Summary - Developed online web based Victims Assistance application utilizing MySQL/PHP technologies for the city of Surprise Police Department. Developed and trained users with web based online calendar scheduling system for the cities of Glendale, Surprise and Avondale for Crisis Response teams within city Fire Departments. Designed and developed budget management systems for Pharmaceutical Marketing Operations and Finance for 1 billion dollar budgets. Designed and developed Pharmaceutical Field Sales web system to manage promotional budgets for over 4000 sales representatives. Provided training for all skill levels from end user to executive management. Designed and installed the entire network for a California bio-technology company utilizing network switches and MS Servers over 10/100 based cabling. Provided on-site technical support for the first 10 years for a California bio-technology company including all MS Office products as well as locally developed database systems. Utilized a wide array of advanced technology skills to implement projects during 35 years of project development. Lead project manager for many of the projects involving interdepartmental disciplines. Designed, created and developed applications utilizing Oracle database technology for over 20 years. Created sales system for one of the world's largest cement producers for all of their US operations. Managed multiple on-site technical analysts on contract to Ford Motor Co. Worked with biotech research companies, especially in the areas of DNA research. Provided technical support with Genesis, Vision, GradePro and IEP systems for local teacher at Tolleson School District. Created and maintains MS 2003 Server R2 with MS Server 2005 database applications for in-house systems and development.

USB Electronics
Raspberry Pi Firmware
MySQL Programming
Modbus
Raspberry Pi
HTML
Python
PHP
SQLite Programming
C#
Arduino
Linux System Administration
GUI Design
$30 hourly
LE Dinh A.
- 4.1/5
- (74 jobs)
Hello! My name is AN, professional hardware. My job is design hardware circuit, test circuit, program for electronic product and program software on PC to manage/communicate with circuit boards. Just give me your requirements/product specification. Then we can discuss about the deadline, price and other features. I have more than 10 years experience in design hardware for IoT Products, Consumer Products and Telecom Products. So I think i can try my best to complete your project with best result Below is my work flow in hardware design: - Receive your requirements, discuss to have final product/circuit specs - Design block diagram for circuit: need to very detail, it will decide what part will be used in project - Design schematics: follow block diagram to design schematic for product - Design PCB Layout: with requirement about Mechanical Design and Industrial Design, i will do the PCB Layout the fit with your MD that archive best performance - Extract production data: BOM, CAD, GERBER, DESIGN, ASSEMBLY GUIDELINE, IMPEDANCE CONTROL REQUIREMENTS, ... Something about my experience: - About microcontroller: STM32F0/F1/F2/F4/F7, MSP430, MSP432, ATMEGA, ATSAM, PIC, ... - About SoC and MPU: NXP B4860, FBGA J-link, Amlogic T962X,iMX6, mini –iMX8… - About dev board: NXP, Arduino, ADI and TI tranceiver board for 4G, Avago, NXP Amplifier, Amplenol Amplifier, Boardcom 4G board, renesas control BLDC motor... - About Wireless MCU: ESP8266, ESP32, CC2530, CC2538, DA14580/14583, CC2540/41, nRF51822/nRF52840, CC1310, ... - About Sensor: CMOS Image Sensor, light sensor, CO, Smoke Sensor, Dust Sensor, Air Sensor, pH sensor, .... - About wireless communication: WiFi, BLE4.0/4.1/4.0, Zigbee, Sub1GHz, ... - About GPRS/3G/LTE Module: SIM800C/H, SIM900A, SIM908, SIM5320, SIM5360, Quectel MC60/M95/UC15/UC20/EC20, Sierra HL8548, SIM7600E. - About highspeed PCB Design: DDR3/DDR4, CPRI 9.8Gpbs,SMGII, HDMI, USB2.0/3.0/TypeC, eMMC, ... - About Power supply : AC-DC powersupply use topology fly-back, buck ( TI: TNY280/290, STM VIPer06XS…) - About simulation: Power supply simulation( ripple, loss, current…), Highspeed simualtion, Antenna PCB simualation… - About Mass Production: I can help you prepare production data that help you do the mass production. I also have experience in mass production process for 4G Basestation Marco, smallcell and Home Gateway with very big quantity, so i will know how to design for manufacturing with your product, design mass production process, etc Some of my product that I have designed and released to the market: - 4G base station: using SoC with 8 DDR3-RAM 2166 Gbps, eMMC 16GB, TRX tranceiver with 1.8Ghz, CPRI 9.8Gpbs interface, Amplifier 4 port power up to 60 W, Power supply with requiment lighting protect, EMI&EMC… -Home application: Design Air- conditinal use toshiba IC, control motor BLDC, have FPC to 7 A -380 V, power supply 1000 W. temperature resistor sensor, Wifi and IR comucation, control AC Fan by Triac… - Smart Home Product: Design Home Gateway with Ethernet, WiFi, Zigbee and TFT LCD, ... Design Smart Switch with capacitive touch, Zigbee communication, Single Phase Power Meter, 220VAC/110VAC load control, ... ... and a lot of other products . I hope to work with you, to help you complete your project and release your product to the market

USB Electronics
Microcontroller Design
Electronic Circuit Design
Simulation Game
Test Case Design
Amplifiers & Filters
Schematic
PCB Design
Internet of Things Solutions Design
Hardware Design
Altium Designer
Antenna Design
WiFi
RF Design
$36 hourly
Sergii P.
- 5.0/5
- (139 jobs)
✅ 100% Client Recommendation ✅ Top Embedded and Firmware developer ✅ Top Hardware designer ✅ Top Software design ✅ Top Mechanical design and industrial design ✅ Top Enclosure design Services: 1) Hardware/Electronics design (Power, Analog, Digital/High-speed and RF electronics design) 2) Precertification testing (EMI, ESD, EMC, FCC, CE, UL) 3) Firmware design С/C++ (Bare metal MCU/MPU, FreeRTOS, Zephyr RTOS, Embedded Linux, Wireless protocols, Security, Interfaces, etc) 4) Industrial and Mechanical design (Enclosure design, 3D printing, IP standards, Prepare all for injection molding, etc) 5) UX/UI design (Embedded devices with displays, Mobile and Desktop applications) 6) Software design (Android, IOS, Linux kernel and user space development) 7) Embedded Quality Assurance(QA) and testing 8) Manual verification/testing PCB/FPC, functional and unit testing of the Firmware/Software, stress testing, temperature range testing Service->Hardware design service: - Power electronics design: (PFC, Solar charging controller, chargers, high voltage control, Motor controllers DC/AC/BLDC ) - Analog electronics design: High-accuracy analog measurements, Noise filtration, Digital to analog conversion, Amplifying signal - Digital and high-speed electronics design: - Memories DDRx/LPDDRx, SDRAM, Camera and display interfaces (MIPI-DSI, MIPI-CSI, DisplayPort, etc), Data communication interfaces (QSpi, SPI, UART, I2C, FMC, I2S, USB 2/3.x, etc), ( - RF Designs: ( 50-60 GHz (Radars), 1-6 GHz (UWB, Wifi, BLE, ZigBee, GPS, NB-IoT, LTE-M/LTE, Z-Wave, etc), 13,6 MHz, 128 kHz (NFC, RFID, etc), 433 MHz (Custom protocols) Service->Industrial and Mechanical design - Industrial design of the sketch - it includes a few sketch designs, depending on the physical sizes of the device, specific of industry and user experience - Mechnical CAD design with deep PCB integration - it includes full mechanical draw based on the industrial design with detailed sizes, materials and manufacturing specific. - Thermal calculation and simulation - it includes simulation of the heating device inside enclosure, with theoretical cooling calculation - 3D printing and verification - we use 3D printer hp jet fusion 5210, with a very nice quality of printing, that helps us to make a good verification of parts with PCBs - Injection molding - the last step, which includes manufacturing optimization and making pres forms, preparing documentation for the manufacturing Service->Firmware design С/C++: - Languages: C/C++, Assembler - Diagrams: Block, UML, Workflow, APIs - Interfaces: I2S, SAI, MIPI-DSI, MIPI-CSI, USB 2/3.x, LTDC, DDR3/DDR4/LPDDR4, I2C, SPI/QSPI, UART, CAN, Ethernet - Wireless: NB-IoT, LTE M, GPRS, GPS, LTE, UWB, WiFi, BLE, ZigBee, Z-Wave, LoRa, Thread, 6LoWPAN, Sub 1GHz, NFC (13,6 MHz), RFID 433 MHZ and 128 kHz - Protocols : MQTT, HTTP, FTP, Modbus TCP/RTU, SNMP, TCP/IP, UDP/IP, DLMS, custom protocols - Security: AES, SSL/TLS, custom algorithms - Libs and frameworks: TouchGFX (GUI lib for MCU), emWin (GUI lib for MCU), LVGL (GUI lib for MCU), WolfSSL (SSL/TLS), Mbed TLS(SSL/TLS), osxMotionFX (Sensors fusion algorithm based on the Kalman theory), FatFS, lwIP (TCP/IP stack), WICED (Wifi stack), aws/amazon-freertos, Paho MQTT, TensorFlow - Embedded OS: FreeRTOS, TI-RTOS, ZephyrOs, Embedded Linux, Yocto, ROS - MCUs: NXP (i.MX RT1064, LPC1100, LPC4000), Nordic (NRF52xx/NRF53xx/NRF91xx), TI (CC3220/CC26xx/CC1100/CC3200, MSP430), Espressif (esp32, esp8266), ST(STM32H7/F7/F4/L4/F0/L0/WB/WL/G0 and STM8), Atmel/Microchip(SAM D20/D21/L21/R21/V70/V71, SAMA5/SAM4/SAMD4), Silicon Labs(EFR32, ZGM130S), Cypress (PSoC 3/PSoC 4), Kinetis (Family MK81FN256VDC15), Holtek (HT68xx) - MPUs: Analog Devices (ADSP-2156x SHARC), Qualcomm (Snapdragon 625/425/610/845), Allwinner (A64, A33, H3, H6 series), NXP (I.MX6/I.MX7/I.M8) , ST(STM32MP1) - SOMs: NVIDIA Jetson nano, NVIDIA Jetson Orin Nano, NVIDIA Jetson AGX Orin, Toradex (Colibri iMX6, IMX7, IMX8), Raspberry pi (CM3, CM4 modules), Inforce (Qualcomm Snapdragon 410, 820, 845 SOM), 8devices (Mango on Qualcomm IPQ6000/IPQ6010 Soc), Sensiedge(SensiBle 1 and 2, SensiLora) Service->Software: - Languages: Java, Kotlin, C#, C/C++, Python, Java Script - Diagrams: Block, UML, Workflow, APIs - Interfaces: USB, Ethernet - Protocols : MQTT, HTTP, FTP, Modbus TCP/RTU, SNMP, TCP/IP, UDP/IP, DLMS, custom protocols - Wireless: BLE, WiFi, UWB - Security: AES, SSL/TLS - Libs and frameworks: GStreamer, Paho MQTT, WolfSSL (SSL/TLS), Mbed TLS(SSL/TLS), QT framework, Xamarin Forms and Maui, ASP .NET Core and web development, React (web UI development), SQLite DB, FireBase DB, Mong DB, InfuxDB DB, Room, TensorFlow, Node.js - OS: Android, IOS, Linux, Windows

USB Electronics
RFID
Altium Designer
FreeRTOS
Robotics
ARM Cortex-M
Firmware Programming
Qt Framework
Real-Time Operating System
PCB Design
Arduino
NFC
Embedded C
Embedded Linux
MQTT
C++
$49 hourly
Ahmed M.
- 4.9/5
- (380 jobs)
Hi! I’m Ahmed Qandel Embedded Systems & IoT Engineer | Turning Ideas into Scalable Solutions. With 14+ years of experience and 350+ successful projects worldwide, I help startups and enterprises design reliable, cost-effective IoT and embedded systems that go from prototype to production. Why Clients Trust Me: 1. Expertise That Delivers Results - Reduced manufacturing costs by 20–30% for clients through optimized PCB design and component sourcing. - Built firmware for industrial devices operating in extreme environments (-40°C to 85°C) with 99.9% uptime. - Designed 50+ commercial IoT products (smart home, wearables, industrial sensors) now in mass production. 2. Full-Cycle Development - Embedded Systems: Prototyping & firmware development (Arduino, ESP32, STM32). - PCB Design: High-speed, low-noise layouts in Altium/KiCad (IPC standards). - IoT Solutions: End-to-end development, from sensors to cloud integration. 3. Speed, Precision, and Partnership - Delivered a firmware MVP for a robotics client in 72 hours, beating their deadline by 2 weeks. - Clients praise my clear communication and ability to simplify technical challenges - Upwork Top-Rated with 5400+ hours logged, 98% job success rate, and 150+ repeat clients. Let’s Build Your Next Innovation Whether you’re refining a prototype or scaling to mass production, I focus on solutions that are efficient, reliable, and ready for the real world.

USB Electronics
MLOps
AI Builder
C#
IOTA
PCB Design
PyQt
Robotics
ESP32
Python
Raspberry Pi
C++
Arduino
Microcontroller Programming
Embedded C
Embedded System
$40 hourly
Alexander S.
- 5.0/5
- (11 jobs)
Let's get acquainted, I am Alexander, a Hardware Embedded Engineer who embodies style and substance. With over 20 years of experience in the field, I'm a true Hardware Design Expert, constantly pushing the boundaries of what is possible with hardware design and development. Clients come to me for my unique ability to create innovative solutions that address their specific needs. I'm known for my ability to provide flexible, cost-effective solutions that meet the needs of clients, no matter where they are located. I'm especially good at prototyping for the development of technically sophisticated audio solutions. If you need help with that, I'm here for you. My hobby is retro computers, the collection includes about 30 models, including YAMAHA KUVT, UKNC etc. so this is a kind of mini museum. If your project is somehow related to "vintage", I will be glad to assist you. If you just have an old project with outdated components, I can upgrade it for you and give it a new life. With my approach to hardware design and development, I'm more than just a Hardware Embedded Engineer - I'm a creative force to be reckoned with. I do: ❆ Microcontroller firmware development in C ❆ Housing and mechanics for electronics ❆ Library/driver development for various external sensors and internal (MCU) peripherals ❆ Hardware prototyping (PCBA) and debugging with various equipment (debugger, oscilloscope, logic analyzer, etc.) ❆ Rapid Prototypes and 3D Printing ❆ Development of modern analogs of existing devices ❆ PCB Circuit Board Design up to 4 layers ❆ Digital circuits design ❆ Wireless and RF: BLE, RFID, WiFi modules ❆ LED matrices, screens, touch/proximity/ordinary buttons I already did: ❆ Remote embedded development device (REDD) that makes the development process much easier; ❆ Boards farm stand for All-hardware project that provides remote access to boards of various manufacturers to developers for free; ❆ SDR modem allowing to detect a noise-free radio frequency and establish a connection between two or more devices. I deal with: ❆ KiCAD, Autodesk Eagle, Fusion 360, Altium Designer ❆ Embedded MCU systems (i.MX8, STM32, others) ❆ Ethernet ❆ USB 2.0 ❆ IoT Output includes; ❆ Schematic ❆ Layout ❆ Gerber ❆ BOM ❆ Pick&Place ❆ 3D Model My EE equipment includes: ❆ Soldering equipment: soldering and desoldering stations, soldering irons, tips, and hot tweezers; ❆Testing and debugging equipment: digital microscope, trinocular microscope, oscilloscope, logic analyzer, multimeter, laboratory power supply. Contact me. I know how to make hardware live.

USB Electronics
Firmware Programming
PCB Design
Electrical Engineering
C++
Embedded System
C
$45 hourly
Mahesh S.
- 5.0/5
- (58 jobs)
We provide Electronics Hardware and Software / Firmware development service. We delivered many solutions in the field of Internet of Things ( IoT ), Data Loggers, Home Automation and Control, Vehicle Navigation, Battery powered Wireless devices. Our technology reach in Microcontrollers, Arduino, Raspberry Pi, Embedded Linux, FreeRTOS, WiFi, Bluetooth / BLE, GSM / GPRS, GPS, RFID, Wireless Communication, 6LowPan, Zigbee with experienced delivery skill help you to achieve maximum throughput. We can work with you right from outlining your need to feasibility check, design, development, prototyping, testing and manufacturing. Our Software expertise includes C / C++, Embedded C / C++, Embedded Linux, FreeRTOS, Python. We worked on many microcontrollers including ESP32, ESP8266, EFM32, STM32F4, Atmel Cortex-M(SAMX), RL78, Arduino, Linkit One, TI Tiva/Stellaris, NRF51, NRF52, AVR, AVR32, PIC, PIC32, LPC, 8051, R8C, CC1110, CC2630, MSP430 but not limited to this and open to your choice. We also worked on ESP32, ESP8266, CC3100, CC3000, RN171 WiFi Modules and Many Bluetooth Modules including HM10, HM11, BMS02, SAMB11, Bluetooth Bee. We also worked on many RF modules including RFM69, RFM70, RFM22, RFM12. We used FatFs library, LWIP library for few of the project. We interfaced many Sensors with microcontroller including Magnetic Sensor, Ultrasonic Sensor, Infrared Sensor, Touch Sensor, Accelerometer, Gyroscope, Temperature Sensor, Level Sensor, Pressure Sensor, Microphone, Piezo Sensor, Mp3 Audio Playback etc. We worked on many wireless technology including WiFi, BLE / Bluetooth, RF, GSM / GPRS, GPS, 6LowPan, Zigbee. We worked with many Microcontroller peripherals including DCMI / Camera, Ethernet, DMA, USB, RTC, SPI, I2C, UART / RS232 / RS485, Data Flash, Internal EEPROM, WatchDog Timer, Random Number Generator, DAC, ADC, Timer, Comparator. We used many Networking protocol including TCP/IP, HTTP, UDP, TLS, SRTP, SIP/SDP/RTP to achieve different functionality. Electronics|Internet of Things|Raspberry Pi|Python|Arduino|Microcontroller Programming|Hardware Prototyping|PCB Design|Embedded Systems|Embedded C|Embedded Linux|Qt|Microcontroller Design|Cadence Platform|VLSI|Eagle|Circuit Design|Integrated Circuits|Electronic Design|Analog Electronics|Digital Electronics|USB Electronics|Bluetooth|RFID|Device Driver Development|FPGA|Atmel AVR|ARM|ARM Cortex-M|Robotics|Assembly Language|RTOS|Altium Designer|KiCad

USB Electronics
PIC16
Internet of Things
Microcontroller Programming
KiCad
MQTT
PCB Design
Embedded C
Raspberry Pi
nRF52
STM32
Firmware Programming
ESP32
Embedded System
Arduino
$25 hourly
Qasim Y.
- 4.1/5
- (1 job)
Welcome to my profile, I am Hafiz Muhammad Qasim (Full Stack Developer) having 3 years of experience in Python (Django) from a local software company named Netskycheaf. In 3 years I handled a lot of big projects backend in which projects are included: *Business Automation* *Investment Systems* *Lottery Systems* *E-commerce Business* *Email Systems* *Push Notification Systems* *Chat System* My Services are: Admin panels Website backends Database management Restful APIs SaaS platforms Fully functional websites Automation Contact us before placing an order so that I can check your requirements and delivery time.

USB Electronics
RESTful API
Web Development
Responsive Design
Bootstrap
jQuery
WordPress
React
PHP
Python
Mobile App Development
Node.js
HTML5
CSS 3
JavaScript
$30 hourly
Thuan L.
- 4.9/5
- (78 jobs)
I am a professional embedded software engineer with more than six years of experience. My current areas of expertise are IoT Applications & Embedded Systems Design, including embedded hardware/software. 𝐌𝐘 𝐒𝐊𝐈𝐋𝐋𝐒: - Know about MCU: Nordic, Silicon Labs, AVR, PIC, ESP, TI CC32xx, ESP32, Qualcomm QCC51xx, etc. - Have experience in programming languages such as C/C++, C#, Java - Solid knowledge of standard interfaces such as I2C, SPI, UART, and CAN. - Have experience using debugging tools such as Segger Jlink, CAN bus analyzer, and Logic analyzer. - IoT devices with wireless connectivity such as LTE, CAT-M1, NB-IoT, LoRa/LoRaWAN, BLE, WIFI, NFC - Good experience in AWS Service, AWS IoT, AWS Shadow, and AWS Jobs. - Good experience in Battery Management Systems based on BQ products from TI. - Good experience with Audio Codec chips. - Experience with AI/ML on Edge Impulse with nRF Connect - True wireless earbuds, headsets and speakers, Bluetooth ® LE Audio standard from Qualcomm: QCC5141, QCC5171, QCC5181,... We have worked with wearable devices and medical devices: - ECG 1, 3, 12 leads with ADS1292, ADS1293, ADS1298 - EEG with ADS1299 - Body temperature with MAX302025, MAX30208 - PPG with MAX86178, MAX86178 - SPO2 with OB1203, MAX32664 sensor hub - Vital signal with AFE4950 - OTA firmware update via Bluetooth/WIFI 🔑𝐊𝐄𝐘𝐖𝐎𝐑𝐃𝐒: Embedded Design, Hardware Design, Firmware Development, Mobile App Integration, IoT Device, Medical Device Design, Embedded Systems, Real-time Operating Systems (RTOS), Microcontroller Programming, Sensor Integration, Wireless Communication (Bluetooth, Wi-Fi), Low Power Design, Wearable Devices, Firmware Architecture, Embedded Software, Device Drivers, System-on-Chip (SoC), PCB Design, Signal Processing, IoT Platforms, Cloud Integration, Mobile App Development, Web Portal Design, Healthcare Technology, Remote Monitoring, Data Security, Telemetry, ARM Cortex, ESP32, Device Connectivity, Embedded Prototyping, Human-Machine Interface (HMI), Medical Device Compliance, Mobile-Connected Devices, IoT Security, BLE, Firmware Debugging, Connectivity Solutions, Edge Computing, Smart Devices, Industrial IoT.

USB Electronics
Bluetooth LE
Flutter
Mobile App Development
Zephyr
Circuit Design
Microcontroller
Firmware Programming
Electrical Engineering
Electronic Design
nRF52
Microcontroller Programming
STM32
PCB Design
ESP32
$45 hourly
Anatoly S.
- 5.0/5
- (7 jobs)
💥 STM32, ARM development ✅ Trustworthy expertise and solutions 🌟 Aspiring and devoted developer 💪 Ready for any embedded challenge Embedded developer knowledgeable in hardware area as well. Prefer profound approach: double-check of all the issues, active communication with customer, regular reporting no lags, no missed deadlines, no failed expectations. My expertise: ◈ Platforms: ARM, STM32 ◈ Languages, tools: C, C++, Qt ◈ Source control: Git ◈ Technologies, libraries: cmsys, stdperif, STM HAL, STL, Qt My skills: ◈ firmware development (STM32, ARM, ESP32) ◈ code review and bug-fixing ◈ BLE development ◈ OS porting ◈ technical documentation development (specifications) Contact me to start IT rolling.

USB Electronics
ESP32
C++
C
Embedded System
STM32
$28 hourly
Muhammad Usman S.
- 4.9/5
- (113 jobs)
My personal interest in software development, circuit design, and mobile app development has led me to pursue the inter-disciplinary field of Embedded Systems. I have acquired 8+ years of experience in Embedded Engineering, software development and architecture design. My technology stack includes but is not limited to: ▪ Programming Languages: C++, Java, Python, C#, C, Android, Swift (IOS), Rust, Assembly, Verilog. ▪ Web-Technologies: HTML5, JavaScript, Node.JS, REST Services ▪ C++ Libraries: STL, Qt, Boost, Eigen, Multi-threading ▪ Controllers: Arduino (Atmel), ESP8266, ESP32, PIC, 8051, DSP Kit, STM, NXP, NRF. ▪ IDEs / Software: MS Visual Studio, CUBE IDE, Eclipse, Keil. MATLAB/ Simulink, MCU Expresso. ▪ CAD Software: Solidworks, Ansys, Fusion360, Unity 3D, Autodesk VRED, CREO, Pro-E, AutoCAD, KEYSHOT. ▪ Vehicle Simulation Software: IPG CarMaker, MS CarSim I am an individual with adequate technical expertise, theoretical knowledge and the right kind of aptitude to responsibly get the work done within the specified time. I can do projects with great efficiency and accuracy. Hands-on experience of challenging projects in the past some years, together with my skillset makes me an appropriate choice for you.

USB Electronics
Prototyping
Manufacturing & Construction
RESTful API
PCB Design
Microsoft Visual Studio
Circuit Design
WordPress
C++
Python
Raspberry Pi
Arduino
ESP32
STM32
Embedded System
$35 hourly
Manh N.
- 4.8/5
- (192 jobs)
Hello! My name is Manh, professional hardware engineer My job is design hardware circuit, test circuit, program for electronic product and program software on PC to manage/communicate with circuit boards. Just give me your requirements/product specification. Then we can discuss about the deadline, price and other features. I have more than 7 years experience in design hardware for IoT Products, Consumer Products and Telecom Products. So I think i can try my best to complete your project with best result Below is my work flow in hardware design: - Receive your requirements, discuss to have final product/circuit specs - Design block diagram for circuit: need to very detail, it will decide what part will be used in project - Design schematics: follow block diagram to design schematic for product - Design PCB Layout: with requirement about Mechanical Design and Industrial Design, i will do the PCB Layout the fit with your MD that archive best performance - Extract production data: BOM, CAD, GERBER, DESIGN, ASSEMBLY GUIDELINE, IMPEDANCE CONTROL REQUIREMENTS, ... Something about my experience: - About microcontroller: STM32F0/F1/F2/F4/F7, MSP430, MSP432, ATMEGA, ATSAM, PIC, ... - About SoC and MPU: RK3399, Allwinner A10, RTS3902L/RTS3902, RTL8188/8192, ... - About dev board: Arduino, RPi, Teensy, ... - About Wireless MCU: ESP8266, ESP32, CC2530, CC2538, DA14580/14583, CC2540/41, nRF51822/nRF52840, CC1310, ... - About Sensor: CMOS Image Sensor, light sensor, CO, Smoke Sensor, Dust Sensor, Air Sensor, pH sensor, .... - About wireless communication: WiFi, BLE4.0/4.1/4.0, Lora, Zigbee, Sub1GHz, ... - About GPRS/3G/LTE Module: SIM800C/H, SIM900A, SIM908, SIM5320, SIM5360, Quectel MC60/M95/UC15/UC20/EC20, Sierra HL8548, SIM7600E. - About highspeed PCB Design: DDR3/DDR4, SATA, HDMI, USB2.0/3.0/TypeC, eMMC, ... - About Mass Production: I can help you prepare production data that help you do the mass production. I also have experience in mass production process for IP Camera and Home Gateway with very big quantity, so i will know how to design for manufacturing with your product, design mass production process, etc Some of my product that I have designed and released to the market: - Home IP Camera: using SoC with DDR3-RAM, livestream via Ethernet and WiFi, have light sensor, IR-Led Array, IR Cut control, CMOS Image Sensor, Flash, USB and MicroSD Card - Smart Home Product: Design Home Gateway with Ethernet, WiFi, Zigbee and TFT LCD, ... Design Smart Switch with capacitive touch, Zigbee communication, Single Phase Power Meter, 220VAC/110VAC load control, ... - Tablet board: using RK3399 SoC, DDR3, eMMC, NAND Flash, Touch Screen, LTE Module, Printer driver, ... - Smart Water Meter: With BLE, WiFi, MCU from TI, LCD 7 Segment - Tracking Device: Using 3G with GPS, this device is used for personal tracking ... and a lot of other products ... I hope to work with you, to help you complete your project and release your product to the market

USB Electronics
Multilayer PCB
Antenna Design
Arduino
LoRa
Altium Designer
STM32
Eagle
PCB Design
Hardware Design
RF Microwave Design
Electronic Design
Microcontroller Programming
Embedded System
Circuit Design
Electrical Engineering
Microcontroller Design
Electronics
$93 hourly
Deolu O.
- 4.5/5
- (11 jobs)
Can I get the job done?...... Short Answer: - $MM in revenue, raised capital, or B2B sales - Long client relationships that persist even after the initial scope of the project is over - In house production facilities (PCB assembly, SLA printing, CNC Machining) which cut your lead time from weeks to just days - A singular goal: Get your MVP in 3 months or less Does that answer your question? If not here's the long version: Hi I'm Deolu. I'm a hardware and software engineer who has experience creating and launching products for small to large companies alike. Whether it's creating a mobile or web application, developing your hardware product, or deploying cloud services, I'll do the work of multiple employees and companies while keeping your time-to-market short and your worries low. Think of me as an extension of your team and like your very own tool-belt. Since I'm versed in multiple fields, I can fit in wherever you need, while delivering quality results. * Web Technologies and Languages: HTML/CSS/JavaScript, NodeJS, ReactJS *Core programming languages: Python, C/C++ *Hardware Tools/Software: Altium Designer, KiCad, Eagle, Fusion360, Blender *Great communication and regular updates (will always give you a time-line upfront) *Experience working with early stage startups as well as established companies * In house production and prototyping equipment (PCBA, CNC Machining, SLA Printing) I'm your personal tool-belt. Point me in the direction of your business problem, and I'll get to work making it go away.

USB Electronics
KiCad
Mobile App Development
Front-End Development
Back-End Development
Altium Designer
PCB Design
Hardware Design
Full-Stack Development
Software Development
3D Modeling
3D Design
CAD
$35 hourly
Paul P.
- 4.6/5
- (334 jobs)
I'm Paul and I have 8 years of experience in PCB design, prototyping, and firmware development for IoT applications, robotics, and embedded systems... in addition to being a team leader for many startup projects. 1. WORK EXPERIENCE - Multi-layer PCB design experience with: • Microprocessor: ARM Cortex-M3, Cortex-M4, •. Low-power chip: Nordic nRF52840, nRF5340, nRF52832, ESP32, STM32WL series • SoM, custom board design for: CM4, Rasp, Orange Pi, iMX8, Jetson Nano/Xavier/Orin, RK3588, RK3568, RV1126 Rockchip, TI AM6254 ,... • High-speed: USB 2.0, HDMI 2.0, DDR3/DDR4, PCIe, NAND Flash, Ethernet 10/100/1000base-T1, PoE++, etc. • Power supply: DC-DC (isolated, Flyback, Boost, Buck, LDOs…). • Communication circuit with motor driver: BLDC, AC servo, DC servo…via I/O, ADC and CAN. • Analog signal processing circuit: ADC, DAC, Audio. • Protocol/communication: o QSPI, I2C, RS485, RS232, CAN, Modbus TCP/IP, RTU, etc. o Wireless, IoT: RF, Wifi, Bluetooth 4.0, GSM (3G, 4G/LTE), LoraWAN... - Experience in building evaluation kits such as Arduino, ESP32, ESP8266, STM32... - Combine dimensional drawings on paper and actual PCBs to be performed into Gerber format with very high similarity. - BOM creation from favorite suppliers: Digikey/Mouser/JLCPCB, LCSC... - Experience in the field of robotics research and development: Automated Guided Vehicles (AGV), AMR, vending machines, 6-axis robots... 2. MAIN SKILLS: - Routing: Clock signals, Differential pair, Bus & single-ended traces with noise consideration… - Knowledge of proper layout techniques for EMC and EMI compliance. - Knowledge of DFA, DFM, and PCB manufacturing and assembly processes. - Good reading and understanding of datasheets, schematics. - Good knowledge of electronics component theory and application 3. FIRMWARE & OTHER SKILLS - Manage the design, fabrication, and procurement processes to acquire the PCBs in a timely and cost-efficient manner. - Initiative, team working, research, and problem-solving skills are pretty good. - Excellent electrical evaluation, testing, and PCB troubleshooting skills. - Firmware development using C, C++, and Python language, QT... - UX/UI design for STM32, ESP32, Rasp Pi, using Figma, TouchGFX, LVGL - IoT: MQTT, Thingsboard, AWS, Blynk... 4. TOOLS and SOFTWARE - Experience with Schematic Capture and Layout with Altium Designer version 18.x, 21.x, and KiCAD Ver6.x7.x, Eagle 9.6.2, EasyEDA, Altium365/CircuitMarker. - Understanding of simulation tools such as OrCAD Capture and PSpice. - Checking the Gerber with CAM350 version 12.1 - 3D design using SolidWorks, Autodesk Inventor…

USB Electronics
NVIDIA Jetson
Eagle
Analog Circuit
Altium Designer
Prototyping
KiCad
PCB Design
Electrical Design
SolidWorks
LoRa
Arduino
ESP32
Raspberry Pi
Embedded System
STM32
$150 hourly
Razvan T.
- 5.0/5
- (44 jobs)
I have over 22 years of experience working and consulting for tech companies in Silicon Valley. Every technical challenge that I had overcome assured me that with the right frame of mind, I could accomplish anything. Engineering is also my hobby, and I have been doing it since before high school. I was born with a soldering iron in one hand and writing code with the other. I designed the hardware for over 100 projects, most of them being sold today. Some notable ones are Snapchat Spectacles (designed most of the electronics and PCB layout), Thornwave Labs' Bluetooth DC Power Meter (PowerMon) and all the other projects on the webpage, various RF modules (RN-171, RN4020, RN52), and development boards designed while working at Microchip. I also created production testers, lots of C/C++ programming, and firmware design. What I can do for you? --------------------------- High Level: project management, research. I am very experienced with hardware design and firmware, which allows me to integrate them more efficiently. Hardware: circuit design, component selection, electrical schematic, PCB payout. I am using Altium Designer. I will provide you with everything you need to go to manufacturing: Gerber files, NC drill, pick and place, assembly diagrams, 3D prints, 3D STEP model, and electrical schematics as well as offer support after the project is completed. I have experience with analog and digital design, RF, high-speed design, microcontrollers, highly complex boards, LCDs. I can run Spice simulations as well. I worked with various technologies and protocols: SPI, I2C, UART, USB, CAN, RS-485, Ethernet, Bluetooth, WiFi, and so on. Prototyping: I will manufacture the prototypes at a much lower cost than average. Over the years, I have developed working relationships with manufacturers in China, hence the cost-saving. I also have a lot of equipment: multimeters, oscilloscope, logic analyzer, vector network analyzer, USB protocol analyzer, power supplies, digital electronic load, soldering equipment, computers, and so on... Certifications: I can assist and oversee the certification process for FCC, IC, and others. Firmware development: I have 24+ years of experience coding in C/C++ and 20 years of firmware development. I can architect and develop your firmware from the ground up. I am exceptionally versed in the ARM Cortex line of microcontrollers: STM32 and Nordic. I will provide you with production-quality firmware. I know the ST and the Nordic microcontrollers like the back of my hand. I can get firmware done very quickly and efficiently for these chips. Software development: Basic tools running in Linux/Windows/Mac, basic GUIs. I can develop all the software tools you need for debugging, testing, and manufacturing. Manufacturing: If your project reaches this phase, I can offer contract manufacturing services. I will be delivering your finished product, ready to sell. The rate I displayed is an average number. It can vary up or down based on the complexity of the project. My rate reflects the experience and knowledge I have. I am good at what I do. Also, keep in mind that I will not bill you for hours like lawyers do for the time they spend in the shower thinking about the project. I will bill you only for the hours I spend advancing the project in a meaningful way.

USB Electronics
STM32
C
RF Microwave Design
Embedded Operating System
Industrial Automation
Linux
WiFi
Bluetooth
Firmware Programming
Analog Electronics
Circuit Design
Power Electronics
Digital Electronics
C++
RF Design
ARM Cortex-M
PCB Design
$35 hourly
Ed T.
- 4.6/5
- (9 jobs)
As a Design Engineer in Mobile Satellite Products I was task with concept, design and implementation of many different projects that eventually moved into production. I typically develop the concept, research, and develop the product through procurement of all components in the design. My skills include: Mechanical Concept and Design using 3D CAD Software (Onshape) Electrical Design down to PCB Schematic and Layout (Kicad) Metal, Plastic, Injection Molding, 3D Printing, and Rubber Design. Sourcing and Purchasing components, tools, Fabrication. Manufacturing processes, floor layout, and tools and fixtures. Developing manufacturing processes for both cost and efficiency. Web Search, MS Word, MS Excel I can take any concept from napkin sketches to production release. My skills in both mechanical and electronic design and understanding of MPU/MCU functionality allow much shorter development times with fewer team members in a project. I do not write firmware or any other software for projects but am able to direct and functionalize how the code needs to be written. I have worked with several other Software Programmers on Upwork. I usually source all components during design and have used both US and international suppliers. I understand purchasing and scheduling and the need to buy at the best pricing.

USB Electronics
Manufacturing
Injection Mold
Purchasing Management
Product Design
Printmaking
Electronics
3D Printing
Online Research
PCB Design
CAD Conversion
Electrical Design
Multilayer PCB
3D Modeling
3D Design
CAD
$60 hourly
Dimitar A.
- 5.0/5
- (49 jobs)
Professional technology architect with more than 20 years of experience in web, mobile and desktop software development. With very strong programming and testing skills, one of my best qualities is to locate and fix complicated problems. 💻 Programming, DB and tech skills include, but not limit to: HTML, XML, CSS, JavaScript, PHP, .NET/C#, Swift, Mobile Apps (iOS and Android), React Native, MS SQL Server (MCTS), MySQL, MongoDB. Expertise in integrating AI solutions and third-party APIs. 🛠️ Hardware experience: Driver, RF, Bluetooth (BLE) and NFC communication development. 🔧Administration and DevOps: Linux Servers - Ubuntu/Debian, CentOS AWS Services - IAM, S3, CloudFront, EC2, ECS, CodePipeline, CloudFormation, etc.. Container application development with Docker 🛡️ QA Skills: UI and Security Testing - User experience and compatibility, DDoS, SQL Injection and other type of vulnerables. 🤝 Team Skills: Agile (Scrum, Kanban) project management, Team Leading, Knowledge Sharing, Code Audit

USB Electronics
Linux System Administration
API
Swift
Business with 100-999 Employees
Software Architecture
Large Language Model
Artificial Intelligence
WordPress
MySQL
MongoDB
.NET Framework
C#
PHP
JavaScript
Amazon Web Services
$26 hourly
Trung-Khanh L.
- 4.3/5
- (112 jobs)
Big Dolphin Co., Ltd www.bigdolphin.com.vn Analog and digital circuit design. PCB design. Software and hardware development with MCU and FPGA: AVR MCU's, Microchip PIC MCU's, Altera KIT's, C/C++, Visual Basic, VHDL/Verilog HDL.

USB Electronics
PCB Design
Digital Electronics
Electronic Design
HTML
Integrated Circuit
Image Processing
Embedded System
Circuit Design
C++
Digital Signal Processing
Eagle
Computer Vision
OpenCV
C
Analog Electronics
$20 hourly
Inam u.
- 4.9/5
- (77 jobs)
Versatile electronics and product design engineer specializing in high-complexity PCB design with a focus on manufacturability. Skilled in prototyping, programming, and testing across various industries, from concept to full-scale production. Whether refining an Arduino/ESP32/STM/Raspberry Pi prototype for production or developing a new concept to attract investors, I deliver engineered technical solutions tailored to your needs. I can assist you in any of the following areas ✅Complete end-to-end electronic product design from concept to complete prototype. ✅Circuit design, Schematic capture, PCB design. ✅Signal conditioning and instrumentation circuits for different types of sensors. ✅Active/passive filters, 0 -10V, 4-20mA,ADCs, Op-Amps, and Instrumentation Amplifiers. ✅Microcontrollers, Communication protocols like SPI, I2C, UART, RS485, RS232, MODBUS RTU/TCP. ✅SMPS, Power design, DC/DC Converters, and FETs. ✅Power, analog & digital circuit simulation, and power/signal integrity analysis. ✅High-speed mixed signal, EMI, and noise reduction. ✅Selection of components (ICs, Resistors, Capacitors, etc…) and preparing cost-effective BOM (Bill of Materials) for circuits with ratings and standards. ✅Planning and Assembling of PCB, Electrical, and Mechanical parts to finish the module as a final product ✅Testing and Troubleshooting of PCBs with SMDs and Through-hole devices. ✅Designing IoT and Ethernet circuits. ✅Firmware & android APP development by using different programmable languages. ✅Energy monitor systems and medical devices ✅Process Controller Design. ✅Water Treatment transmitters like Ph, temperature, ORP, Conductivity, and TDS. ⭐⭐⭐ Capability Matrix⭐⭐ ⭐ ✅Microcontrollers ⚡Arduino: UNO, MEGA, NANO, DUE ⚡STM32: STM32H7,Stm32F1,STM32F0,STM32F3,STM32F4,STM32F7 ⚡PIC: PIC12,PIC16,PIC18 ⚡ESP: ESP32 Wroom, ESP32 C3, ESp32 S2, ESP32 S3, ESP8266 ✅PCB Tools ⚡Altium ⚡Eagle ⚡EasyEDA ⚡KiCad ✅Simulation Tools ⚡LTSpice ⚡Proteus ⚡WokWi ⚡TinkerCad ⚡PSpice ⚡Multisim I hope to work with you, to help you complete your project and release your product to the market

USB Electronics
Python
Electronic Circuit Design
EasyEDA
Arduino
Hardware Prototyping
PCB Design
Android App
ESP32
ESP8266
Microcontroller Programming
Altium Designer
Electronics
Internet of Things
KiCad
Analog Electronics
$30 hourly
Chris C.
- 4.7/5
- (35 jobs)
I obtained my Bachelor of Computer Science and Bachelor of Science from Monash University in Australia, and for the Science portion, I majored in physics. I have been programming for 12 years and have had professional experience doing freelance development work in the cryptocurrency mining sector. I was born and raised in Australia. I am passionate about working on novel, challenging projects such as new product development. I enjoy working on code which is "close to the metal" - code which has tangible, physical effects. I can communicate and function well, even under intense time pressure.

USB Electronics
Firmware Programming
Agile Software Development
C
C++
Embedded C
Microcontroller Programming
$45 hourly
Bhavin V.
- 4.7/5
- (135 jobs)
Some valuable clients from Fortune500, The University of Bristol, PGA of America and their experience and valuable words with me, ➣ "Bhavin is such a fantastic developer to work with. He was professional and handled all modifications seamlessly. He communicated with me all through the project and also immersed himself in the problem by providing unique solutions to the hardware and software development challenges faced during the project. I give my highest level of recommendation." ➣ "I would happily employ Bhavin again. He is extremely efficient works very fast and is a very good communicator. The product was delivered on time and worked perfectly. I definitely will be using Bhavin again in the future. Thank you very much for your hard work." I am an Embedded Professional with experience in multiple domains. My special expertise in PCB Design, Electronics Hardware and Firmware Development, Mobile Application and Software Testing. I can provide a TURNKEY SOLUTION of KickStater Product Development - Just present the idea and I provide you with a working prototype so that you can go for manufacturing and explore your business to make the world better place. --- WHAT I DO and WHERE I CAN ADD VALUES IN YOUR BUSINESS --- ➤ Hardware Development : -Nordic Semiconductor nRF51/nRF52/nRF91 -ESP32/ESP8266/Arduino -ST series STM32/STM8 -ARM-based controller -Texas Instrument MSP and CC series -Raspberry Pi Zero/Raspberry Pi Zero W/Raspberry Pi 3/Raspberry Pi B+/Orange Pi -Atmel AVR Atmega32/Atmega8/Xmega, special purpose AVR, Arduino Mega and Tiny -PIC32/PIC24/PIC18/PIC17 -Silicon Labs ERF32, EM351/EM357, EFM32 and C8051 -NXP -LoRaWAN -ThunderBoard Sense2 -PLC ➤ Firmware/Software Development : -Embedded C and C++ -Embedded Linux -Kernel -OpenWRT -MediaTek -Android Code Porting -Python -QT Embedded Development Platform -Android/iOS App Development -Web Development -FreeRTOS -AWS IoT -MQTT -Custom MQTT -HTTP -Firebase -Google Cloud IoT -NodeJs -Node-Red ➤ Embedded Development Tools/IDE : -Atmel Studio -Simplicity Studio -Arduino IDE -Raspbian -MPLAB -Code Composer Studio -Helium IoT Development Tool -Particle.io -Platformio -Android Studio -Xcode -Keil ➤ PCB Design Tool : -EagleCAD -KiCAD -Altium -OrCAD ➤ Different Interface : -Soil Moisture Sensor -Ultrasonic Sensor -Infrared Sensor -Temperature Sensor -Humidity Sensor -Water Level Sensor -Pressure Sensor -Piezo Sensor -Magnetic Sensor -Accelerometer -Gyroscope -Capacitive Touch Sensor -Microphone -Mp3 Audio Playback -HeartRate Sensor -Blood pressure sensor -GSM/GPS Modules -Display ➤ Communication protocols : -UART (RS232, RS485) -CAN -SPI -I2C -RFID -NFC -Bluetooth -WiFi -Ethernet -USB -ZigBee -MQTT -LoRaWAN -Mongoose OS -Google Home -Amazon Alexa ➤ Specialize with IoT Technology : -Smart Home Automation Development -Tracking Device Development -Medical Device Development -Fibaro Home Automation -Control4 Home Automation -OBD Hardware and App Development -ACR Software Development -OBD Hardware Firmware Mobile App ➤ Project Management Tools : -Trello -Asana -Jira -GIT If you are expecting such words as "High Quality", "Cost-Effective Prototype", "In-Time Delivery" I would be the right person. Hire me immediately. I will be happy to AMAZE you with my work. Best Regards, Bhavin Vaghela

USB Electronics
OpenWrt
Internet of Things
Microcontroller Programming
Embedded System
PCB Design
Embedded C
Industrial Internet of Things
ESP32
Qt Framework
Hardware Design
Firmware Programming
Electrical Engineering
AWS IoT Core
Arduino
$50 hourly
Bilal Q.
- 5.0/5
- (21 jobs)
I have helped several IoT startups and companies to achieve their business goals. I have worked in different roles primarily as a software developer at u-blox for around 6 years. Currently, I am working as a Team Lead and my team comprises engineers from different backgrounds (Hardware, software, mechatronics, robotics). Additionally, I have also taken up SCRUM master roles where I get to interact/facilitate/mentor teams working on AI/ML, cloud, mobile, and UI/UX. We are developing an exciting indoor home robot - Ruyi. Ruyi is a smart robot for older adults which is able to prevent falls and also provide guided medical exercise programs for rehabilitation. Ruyi is also a care companion to the elderly that will help them to age in place, with grace. Website: ruyi.xavor.com

USB Electronics
Computer Vision
Wireless Communication
Firmware Programming
Embedded C
Electrical Engineering
Internet of Things
Embedded System
Arduino
C++
Python
Android App Development
Hardware Prototyping
ESP8266
PCB Design
Microcontroller Design
$50 hourly
xue l.
- 5.0/5
- (118 jobs)
✅ Full-time freelancer with 12+ years of PCB design experience. ✅ Cadence Allegro 16.6/17.2/Orcad, Altium Designer 22. ✅ Firmware develpment of almost any field. ✅ Prototype PCB production, PCBA assembly. Located in Shenzhen, China. Hello,everyone. Thanks for your visiting on my profile. Hardware engineering and Firmware development are the main specialties. Additionally provide the PCB board design to fit to the enclosure based on my Solidworks skill. And also promise you with PCB production and assembly. Please go on for my skills and experience. Skills & Products 1) Schematic and PCB (Altium/Allegro) - MotherBoard - RF 2.4GHz(bluetooth, wifi) - GPS modules including Ultimate GPS and MTK3339 - DDR2 SDRAM, DDR3 SDRAM - HDMI transmitter, receiver, switch - Ethernet PHY 10M/100M/1000M(RGMII, GMII, MDI) - MIPI LCD - USB, SPI, I2C, UART(RS485,RS232) - analog amplifier and filter(audio, RF, etc) - sensor circuit(pressure, gravity, magnetic, etc) - control circuit(DC Motor, high voltage relay, etc) - RF and Microwave circuit 2) Firmware and Embedded System and Software and Mechatronics - MCU STM32, ESP32, ESP8266, Arduino, Adafruit, Rpi, Jetons Xavier NX, NRF52x, CC26xx, PN7462, ARM, AVR, PIC, ATMEGA, SAMD - Sensors and Modules LCD, Flash(W25Q128), 2G~4G module(BG96, SIM808), IMU(GY953, MPU9250), SD card, NEMA Motor, - Development Tools Keil, STM32CubeMX, STM32CubeIDE, AVR Studio, Atmel Studio, MPLAB, MPLAB X IDE, ESP-IDF, Eclipse, IAR_Embedded_Workbench, Simplicity Studio, Visual Studio, QT, Solidworks(Design and Dynamic Simulation) - Skill IoT,Industrial IoT, BLE, DSP, Control(PID), Robotics, Mechatronics, NFC, RFID, Embedded system, RTOS, Cryptography(RSA, AES, ECC, HTTPS), SoftwareFilter(LP, HP, BP), Artificial intelligence and Machine Learning, Deep Learning, Blockchain - Language and framework C/C++, Python, Java, HTML, CSS, Javascript, SQL, OpenCV, Tensorflow, Keras, Pytorch - Communication Interface and Protocal UART, SPI, I2C, USB, CAN, MBUS, MODBUS, BLE, Zigbee, WiFi, TCP/IP, HTTP, HTTPS, MQTT, RTU, GSM/GPRS/GNSS/GPS/LTE, DSI, CSI 3) Used FPGA, CPLD(Xilinx ISE, Vivado, Quartus, Linux, Altium/Allegro) - Xilinx : XC7Z010(Zynq7000), XC7A100T(Artix7), XC6SLX100T(Spartan6) - Altera : MAX 3000A, Cyclon III, Cyclon IV 4) FPGA Logic design (According to user's request) - ETH core(verilog) - LDPC encoder core(verilog/vhdl) - LDPC decoder core(verilog) - BCH encoder core(verilog/vhdl) - BCH decoder core(verilog) - OFDM core(verilog) - SPI core(verilog) - I2C core(verilog) - UART core(verilog)

USB Electronics
OrCAD
nRF52
Firmware Programming
nRF52832
Electronic Circuit Design
Cadence Platform
FPGA
ESP32
Manufacturing & Construction
Altium Designer
SolidWorks
$125 hourly
Kevin K.
- 4.9/5
- (52 jobs)
I’m Kevin. I design things. Over the last ten years I have taken over twenty commercial products from concept to manufacture while navigating startup challenges along the way. I am “practical” above all else. A team player and easy to communicate with, I am able to take rough concepts and deliver them as working products or prototypes with minimal cost and hassle. My specialty is electronic hardware design, though most projects involve physical or mechanical parts as well. This is my full time job, working from my dedicated workshop near Portland, Oregon. I have in-house capability for most aspects of bringing up new designs and fabricating one-off devices or prototypes. We have high resolution SLA 3D printing (UV resin), a large 4x8’ production CNC machine suitable for plastics and most aluminum, and plenty of bench/floor space for your project. I have relationships with various local machine shops and test labs, so extra support is convenient if needed. I work in Altium Designer for schematic and PCB board layout, and use Solidworks or Autodesk Fusion for physical component design and working with complex physical assemblies. I have designed many injection molded parts, stamped metal parts, etc. Many of my products involve radio so I’m familiar with the FCC test lab process for both module based radios and custom designs. I have designed Internet of Things IoT products, wireless mesh networking, and low cost proprietary point to point radios. I am intermediate level coding on small 8 to 32 bit microprocessors in C,C++. My code is extremely "human readable" and cleanly documented. I have solid experience with Mircochip PIC processors, Atmel, STM32, and MSP430. I have written several low level handlers for custom board hardware and protocols. If you’re looking for a competent person that is easy and reliable to work with, and who will handle your project as if it were their own, let’s chat and see what happens. Electronics: -Embedded Hardware Design -PCB Circuit Board Design -Low-level Microprocessor Coding, C, C++, Python -Radio Wireless Communications and Certification -Internet of Things, IoT, Mesh Networking, Zigbee -Robotics -Automation -Short Run PCB Assembly -Prototyping and Test Fixtures (in house) -Reverse Engineering, Proprietary Protocols -Testing, Debugging, Product Validation Mechanical: -Solidworks -Autodesk Inventor / Fusion360 -Complex Assembly Design -Process, Testing, and Assembly Fixtures -Injection Molding -High Resolution SLA 3D Printing (in house) -CNC Machining (in house) -Industrial Processing Fixtures -Plastics Fabrication (Tanks, Jigs, Wet Processing, etc.) -Rapid Prototypes and 3D Printing for Industrial Parts -Moving Parts, Gearing, Bearings, etc. Support Services: -Connections with Contract Manufacturers -Crowdfunding, I've raised approx $400k via Kickstarter, Indiegogo -Relationships with Asian and China Manufacturers -Injection Molding & Stamped Metal Parts from Asia -Patent Experience (I hold 7 Patents)

USB Electronics
Firmware
Arduino Firmware
Circuit Design
PCB Design
RF Design
Injection Mold
Electrical Engineering
Electronic Design
Product Design
Hardware Prototyping
SolidWorks
3D Printing
Product Development
Mechanical Design
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Last updated: May 16, 2025

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