I professionally develop complex embedded and integrated solutions for remote control, access, connectivity, and monitoring. I have led and delivered multiple projects across automotive telematics, connected devices, retail systems, applied electronics, and backend/server platforms, including web-based applications and AI-enabled features such as video analytics, speech recognition, and intelligent automation. My background combines hands-on engineering with product leadership. I work across firmware, mobile apps, cloud services, hardware/software integration, and scalable backend systems. I am comfortable solving difficult real-world problems involving connectivity, reliability, performance, and deployment at scale. I have extensive experience managing multidisciplinary engineering teams, coordinating hardware and software development, and delivering products from concept through production. As a strategist and experienced technology leader, I can drive the full lifecycle of a project: architecture, execution, team leadership, launch, and continuous improvement. I bring a practical builder mindset focused on results, speed, quality, and turning ambitious ideas into working products.

Working in Digital Systems Design for the last 4 years: I've written RTL for server-class RISC-V SoC components, built an Image Signal Processor pipeline that runs on FPGA, and contributed to an actual chip tape-out on SkyWater's 130nm process. I've taken designs through the full life cycle — specification, simulation, FPGA prototyping, fabrication, and silicon bring-up in the lab, where I wrote C and assembly tests to validate real hardware. Alongside design work, I also write technical articles on chip design, RISC-V, and embedded systems — so if you need documentation or engineering content that's accurate and readable, I can help with that too. Feel free to reach out or send an invitation to get started. Keywords RISC-V | Computer Architecture | RTL Design | Verilog | SystemVerilog | Chisel | Bare-Metal Firmware | Embedded C | Assembly Language | FPGA Prototyping | SoC Integration | Silicon Bring-up

Are you building a connected device, industrial system, or embedded Linux product and need someone who can own it end-to-end. From bare metal firmware to the UI running on top? That's exactly what I do. I'm a Senior Embedded Software Engineer with 7 years of experience shipping real products across industries - medical devices, solar energy systems, public transportation, and industrial automation. What I can bring to your project: - Embedded Linux development (custom distros, Yocto, BSP bring-up, ARM/aarch64) - Firmware development in C/C++ with FreeRTOS on STM32, ESP32, ARM Cortex - Qt/QML application development for embedded and desktop targets - IoT connectivity: MQTT, WebSockets, REST, Modbus, BLE, NFC, AWS/Azure SDKs - Communication protocols: UART, I²C, SPI, RS-485, TCP/UDP - System design, state machines, driver development, and hardware integration

𝗟𝗼𝗼𝗸𝗶𝗻𝗴 𝗳𝗼𝗿 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗶𝗻 𝗕𝗼𝘁𝗵 𝗗𝗲𝘀𝗶𝗴𝗻 𝗮𝗻𝗱 𝗘𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗳𝗼𝗿 𝗬𝗼𝘂𝗿 𝗡𝗲𝘅𝘁 𝗣𝗿𝗼𝗷𝗲𝗰𝘁? 𝗧𝗵𝗲𝗻 𝗮 𝗚𝗼𝗹𝗱 𝗠𝗲𝗱𝗮𝗹𝗶𝘀𝘁 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 𝗔𝗰𝗵𝗶𝗲𝘃𝗲 𝗘𝘅𝗰𝗲𝗹𝗹𝗲𝗻𝗰𝗲! Hello! I’m 𝗛𝗮𝗺𝗱𝗮𝗻, an 𝗘𝗹𝗲𝗰𝘁𝗿𝗶𝗰𝗮𝗹 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 passionate about designing innovative 𝗵𝗮𝗿𝗱𝘄𝗮𝗿𝗲 and 𝗜𝗼𝗧 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀. I graduated with a Bachelor's in 𝗘𝗹𝗲𝗰𝘁𝗿𝗶𝗰𝗮𝗹 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 as a 𝗚𝗼𝗹𝗱 𝗠𝗲𝗱𝗮𝗹𝗶𝘀𝘁. With extensive experience in IoT and embedded systems, I specialize in creating smart and efficient systems. My expertise lies in delivering high-quality, reliable solutions backed by exceptional problem-solving skills and meticulous attention to detail. 🌟𝗘𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝗙𝗶𝗿𝗺𝘄𝗮𝗿𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: FreeRTOS, Zephyr 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀: Python, C, and C++ 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: Raspberry Pi, Orange Pi, Jetson Nano, ESP32, STM, nrf, Arduino 𝗧𝗼𝗼𝗹𝘀: VS Code with Platform IO, ESP-IDF, Arduino IDE 📐𝗣𝗖𝗕 𝗮𝗻𝗱 𝗖𝗶𝗿𝗰𝘂𝗶𝘁 𝗗𝗲𝘀𝗶𝗴𝗻: 𝗣𝗖𝗕 𝗗𝗲𝘀𝗶𝗴𝗻 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲: Altium Designer, KiCad 𝗖𝗶𝗿𝗰𝘂𝗶𝘁 𝗗𝗲𝘀𝗶𝗴𝗻: Analog and digital circuit design, advanced PCB layout and schematic capture, complex digital logic circuits, Proteus, Matlab 📶 𝗜𝗼𝗧 𝗣𝗿𝗼𝘁𝗼𝗰𝗼𝗹𝘀 𝗮𝗻𝗱 𝗜𝗻𝘁𝗲𝗿𝗳𝗮𝗰𝗲𝘀: 𝗣𝗿𝗼𝘁𝗼𝗰𝗼𝗹𝘀: : MQTT, WebSockets, HTTP, SNMP, MODBUS TCP/IP/RTU/ASCII (RS485, RS232, RS422) 𝗜𝗻𝘁𝗲𝗿𝗳𝗮𝗰𝗲𝘀: SPI, I2C, UART, RS232, RS485 🌐𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: 𝗪𝗶𝗿𝗲𝗹𝗲𝘀𝘀 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: Wi-Fi, BLE, ESP-Now, Thread protocol 🔧 𝗥𝗲𝘃𝗲𝗿𝘀𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗮𝗻𝗱 𝗧𝗿𝗼𝘂𝗯𝗹𝗲𝘀𝗵𝗼𝗼𝘁𝗶𝗻𝗴: 𝗥𝗲𝘃𝗲𝗿𝘀𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴: PCB Tracing 𝗧𝗿𝗼𝘂𝗯𝗹𝗲𝘀𝗵𝗼𝗼𝘁𝗶𝗻𝗴:: Load Calculation, Fault Tracing 🔗 𝗦𝘆𝘀𝘁𝗲𝗺 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: Design and integration, system architecture development 📺 𝗗𝗶𝘀𝗽𝗹𝗮𝘆𝘀 𝗮𝗻𝗱 𝗗𝗮𝘁𝗮 𝗛𝗮𝗻𝗱𝗹𝗶𝗻𝗴: 𝗗𝗶𝘀𝗽𝗹𝗮𝘆𝘀: Integrated displays such as TFTs, LCDs, OLEDs, E-ink, HMIs 𝗗𝗮𝘁𝗮 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁: Data logging with SD cards, RTCs, EEPROM/NVS 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗮𝗹 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 • 𝗦𝗺𝗮𝗿𝘁 𝗜𝗼𝗧 𝗕𝗮𝘀𝗲𝗱 𝗪𝗮𝘁𝗲𝗿 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗦𝘆𝘀𝘁𝗲𝗺 𝗳𝗼𝗿 𝗥𝗢:: Utilizing ESP32 and ESP8266. • 𝗜𝗼𝗧 𝗕𝗮𝘀𝗲𝗱 𝗙𝘂𝗲𝗹 𝗦𝗲𝗻𝘀𝗶𝗻𝗴 Integrated with 0-5V, 4-20mA using ESP32 and STM32. • 𝗦𝗺𝗮𝗿𝘁 𝗜𝗼𝗧 𝗕𝗮𝘀𝗲𝗱 𝗪𝗮𝘁𝗲𝗿 𝗜𝗿𝗿𝗶𝗴𝗮𝘁𝗶𝗼𝗻 𝗦𝘆𝘀𝘁𝗲𝗺 𝗳𝗼𝗿 𝗣𝗮𝗿𝗸𝘀 Developed with ESP32 and ESP8266. • 𝗦𝗺𝗮𝗿𝘁 𝗜𝗼𝗧 𝗕𝗮𝘀𝗲𝗱 𝗧𝗵𝗿𝗲𝗲 𝗮𝗻𝗱 𝗦𝗶𝗻𝗴𝗹𝗲 𝗣𝗵𝗮𝘀𝗲 𝗘𝗻𝗲𝗿𝗴𝘆 𝗠𝗲𝘁𝗲𝗿𝘀: Implemented with ESP32 and Arduino. • 𝗦𝗺𝗮𝗿𝘁 𝗜𝗼𝗧 𝗕𝗮𝘀𝗲𝗱 𝗧𝗵𝗿𝗲𝗲 𝗮𝗻𝗱 𝗦𝗶𝗻𝗴𝗹𝗲 𝗣𝗵𝗮𝘀𝗲 𝗘𝗻𝗲𝗿𝗴𝘆 𝗠𝗲𝘁𝗲𝗿𝘀: Utilized D1 mini and Sim800l. • 𝗗𝗶𝗮𝗹𝘆𝘀𝗶𝘀 𝗥𝗲𝗽𝗿𝗼𝗰𝗲𝘀𝘀𝗶𝗻𝗴 𝗠𝗮𝗰𝗵𝗶𝗻𝗲: Designed with Raspberry Pi and ESP32. • 𝗦𝗺𝗮𝗿𝘁 𝗟𝗼𝗰𝗸𝗲𝗿 𝗦𝘆𝘀𝘁𝗲𝗺 𝘂𝗽 𝘁𝗼 𝟲𝟰 𝗟𝗼𝗰𝗸𝘀 𝘄𝗶𝘁𝗵 𝗧𝗖𝗣/𝗜𝗣 𝗮𝗻𝗱 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗮𝗹 𝗣𝗿𝗼𝘁𝗼𝗰𝗼𝗹: Created with ESP32/Ethernet Module/RS485/RS232. • 𝗦𝗺𝗮𝗿𝘁 𝗜𝗼𝗧 𝗕𝗮𝘀𝗲𝗱 𝗛𝗼𝗺𝗲 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻: Implemented using Raspberry Pi, Arduino, and ESP32. • 𝗦𝗺𝗮𝗿𝘁 𝗜𝗼𝗧 𝗕𝗮𝘀𝗲𝗱 𝗗𝗼𝗴 𝗮𝗻𝗱 𝗖𝗮𝘁 𝗦𝗺𝗮𝗿𝘁 𝗙𝗲𝗲𝗱𝗲𝗿: Developed with Raspberry Pi, Arduino, and ESP32. • 𝗦𝗺𝗮𝗿𝘁 𝗜𝗼𝗧 𝗕𝗮𝘀𝗲𝗱 𝗔𝗲𝗿𝗼𝗽𝗼𝗻𝗶𝗰𝘀 𝗮𝗻𝗱 𝗛𝘆𝗱𝗿𝗼𝗽𝗼𝗻𝗶𝗰𝘀 𝗦𝘆𝘀𝘁𝗲𝗺 𝘄𝗶𝘁𝗵 𝗣𝗲𝘀𝘁 𝗗𝗲𝘁𝗲𝗰𝘁𝗶𝗼𝗻:Designed with Raspberry Pi. • 𝗦𝗺𝗮𝗿𝘁 𝗜𝗼𝗧 𝗕𝗮𝘀𝗲𝗱 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗰 𝗦𝘆𝗻𝗰𝗵𝗿𝗼𝗻𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝗼𝗳 𝗔𝗖 𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗼𝗿: Implemented with ESP32, PLC, and Raspberry Pi. • 𝗛𝘂𝗺𝗮𝗻𝗼𝗶𝗱 𝗕𝗮𝘀𝗲𝗱 𝗦𝗶𝗴𝗻 𝗧𝗿𝗮𝗻𝘀𝗹𝗮𝘁𝗼𝗿: Utilized Raspberry Pi and NVidia Jetson. • 𝗦𝗶𝗻𝗴𝗹𝗲 𝗣𝗵𝗮𝘀𝗲 𝗧𝗛𝗗 𝗠𝗲𝘁𝗲𝗿: Developed with Arduino 𝗣𝘂𝗯𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 • Muhammad Irfan Anis and Hamdan Ali (October 21st, 2021). ""𝗠𝘂𝗹𝘁𝗶-𝗰𝗼𝗿𝗲 𝗙𝗶𝗯𝗲𝗿 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗙𝗶𝗯𝗲𝗿 𝗢𝗽𝘁𝗶𝗰𝘀 - 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗮𝗻𝗱 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀" IntechOpen DOI: 10.5772/intechopen.100116. • Shahrukh Ali Shaikh, Syed Tahir Hussain, Hamdan Ali (2020). "𝗙𝗹𝗼𝗮𝘁𝗶𝗻𝗴 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝗼𝗳 𝗥𝗲𝗻𝗲𝘄𝗮𝗯𝗹𝗲 𝗞𝗶𝗻𝗲𝘁𝗶𝗰 𝗜𝗺𝗽𝗮𝗰𝘁 𝗘𝗻𝗲𝗿𝗴𝘆 𝗛𝗮𝗿𝘃𝗲𝘀𝘁𝗶𝗻𝗴 𝗙𝗿𝗼𝗺 𝗠𝗲𝗰𝗵𝗮𝗻𝗶𝗰𝗮𝗹 𝗧𝗿𝗶𝗴𝗴𝗲𝗿𝗶𝗻𝗴 𝗼𝗳 𝗪𝗮𝘁𝗲𝗿 𝗪𝗮𝘃𝗲𝘀." AJEST Vol. 10 Issue 2. Are you looking for a high-caliber 𝗱𝗲𝘀𝗶𝗴𝗻 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿 and 𝗲𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 expert ? With my services, you'll benefit 𝐫𝐞𝐝𝐮𝐜𝐞𝐝 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐭𝐢𝐦𝐞, 𝐞𝐧𝐡𝐚𝐧𝐜𝐞𝐝 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐫𝐞𝐥𝐢𝐚𝐛𝐢𝐥𝐢𝐭𝐲,and providing 𝐜𝐨𝐬𝐭-𝐞𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐭 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 with comprehensive support throughout the development process. If this meets your needs then, 𝗟𝗲𝘁'𝘀 𝗰𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗲 𝘁𝗼 𝗯𝗿𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝘃𝗶𝘀𝗶𝗼𝗻 𝘁𝗼 𝗹𝗶𝗳𝗲 𝘄𝗶𝘁𝗵 𝘁𝗵𝗲 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗼𝗳 𝗮 𝗴𝗼𝗹𝗱 𝗺𝗲𝗱𝗮𝗹𝗶𝘀𝘁!

I engineer innovative IoT solutions that bridge the gap between hardware and software. With over 11 years of experience, I specialize in developing embedded systems and firmware for diverse applications, including state-machine-based firmware and dual-role BLE architectures. My expertise extends to industrial R&D, where I've successfully designed and deployed critical systems like submersible oceanographic sensors and real-time monitoring suites including but not limited to NI LabVIEW, nodeRed, and online dashboards such as ubidots and Thingsboard. As a former Academic Program Head, I have a background in transitioning research into market-ready IoT training hardware. I've also worked on projects related to systems integration and workflow automation using tools like n8n, highlevel, zapier and more. If you are looking for a skilled engineer who can tackle complex automation and monitoring challenges with precision, let's connect and discuss how I can contribute to your project.

Firmware/Software/Hardware Services available for new product design and existing product enhancement. 30+ years experience with development from the chip logic and microcontroller level to PLC and .NET platforms. Strong electrical engineering skills in addition to expert firmware development. Summary of Qualifications: 30 years experience with real-time embedded processors. Principal Architect of firmware for 18 products. Modifier of 60+ legacy embedded systems, sub-systems, companion applications (desktop / app) . Expert reverse engineering and clarification/organization of legacy systems. Porting of legacy code to new environments and expansion of product lines. Expert Firmware programmer in C, C++, and Assembler Languages. C Language: STM32, ESP32, PIC32, PIC24, dsPIC, PIC18, PIC16, 8051, MSP430, AtmelAVR, TMS320C30, BGM111 ARM Cortex M4, Atmel AVR. C++ Renesas SH7145, Hitachi H8. PLC Allen Bradley/Rockwell; Schneider; Siemens; Mitsubishi; Panasonic; Omron. Structured Text and LD. Assembler Z80, TI TMS370, TMS320C30, Intel 8085, Philips 8051, Microchip PIC18, PIC16 Device Drivers I2C, SPI, CAN, BLE, RS-232, RS-485, modbus, tcp/ip, for a variety of interface IC's A/D converters; ASICs; memories; displays; companion microcontrollers; sensors (temperature, humidity, pressure, tilt, acceleration sensors). Arduino and microPython development. Software Software Development under Visual Studio C#, VB dot NET, Visual C++, Visual Basic, Borland C++ Builder, Excel VBA, HTML, PHP, SQL, Python, MicroPython, Java, Kotlin, other obscure languages. Design experience with Red Lion Crimson, Origin, Matlab, Logix Designer. Authorship of multiple desktop software programs for communications with embedded systems. Hardware Schematic Design using Altium, Orcad, Eagle, etc. to create prototypes, test jigs, and modifications to existing production hardware designs. Programming of low level logic (22V10, 16V8), FPGA, & PLCs. Skills Prototype assembly skills, new board wake-up, PCB design checking, other EE support functions, etc. Expert debugging skills using oscilloscopes, logic analyzers, and spectrum analyzers. Documentation Manual Writing; Application Notes; Test Procedures; Manufacturing Instruction; Customer Correspondence & Troubleshooting. Management of consultants and mentoring of junior engineers.

More than 20 years of experience. University of Tennessee, Master Electrical and Computer Engineer. Electronic engineering design and development. Large experience product development, prototypes, microcontroller based products design, PCB board design, layout, schematics, firmware, c language programming. Also Xilinx and Altera FPGA programming. LabVIEW programming. Electrocardiogram, Electroencephalogram, ECG, EEG, EKG, Optical Heart Rate Monitor, PPG, SpO2, ADS1292, ADS1292R, ADS1293, ADS1293R, ADS1294, ADS1298,ADS1198, ADS1296,MAX30101, MAX30102, MAX32664, STM32WB, STM32WL, SAMD21,EFR32MG. Several successful freelance projects developed: 1. Ultrasonic Flaw Detector (NDT - Non Destructive Test) . High frequency (2 MHZ to 20MHz) ultrasonic pulses MAX4810, AD8331, AD9271 and the highly integrated MAX2084. 2. Bluetooth Heart Rate and Oximeter Wrist Watch Monitor . MAX30101, ATSAMD21J18 MCU, Bluetooth, LED, buzzer, and Android APP. 3. Microsoft XBOX Keyboard controller firmware for Gamming Keyboard. Custom Keyboard that could be used simultaneously as HID Keyboard, HID Mouse, XBOX Microsoft controller and MIDI controller. USB descriptors and USB enumerations, optical analog sensors. 4. Diaphragm Pacer System for ALS patients . NeuRx DPS (Synapsebiomedical.com). 5. Electronic Cigarette, 200W Regulable and Rechargeable with Touch LCD. LTC3887 350kHz Step-Down Converter with PMBus. 6. EEG Wireless. Electroencephalogram sensor 8-Differential Channels/electrodes ADS1299 with Bluetooth. Service Description: Time-to-Digtal converter. CADSOFT, EAGLE PCB design, Schematic and Layout. Microcontroller programming. FPGA programming XILINX, ALTERA. Labview programming. Labview FPGA programming. USA, University of Tennessee Knoxville, Master Electrical and Computer Engineer.

I have experience in electronics more then 5 years. And i design so many Control board PCBs based on microcontroller (Arduino is my favorite). And I provide full support and help even after PCB or hardware design is finish. I have good knowledge of microcontroller programming so if there is a bug or error i can give you advice and suggestion in programming and hardware. In short, I will help you to build full product development Schematic design - PCB design - component mounting on PCB - Controller programming - 3D case designing - 3D printing - all fitting and testing Software knowledge KiCAD , FreeCAD , Arduino IDE , Atmel Studio , STM32 Cube IDE Programming Language known Embedded C , Arduino Programming , C , Python , Embedded Linux Hardware knowledge Arduino boards , Raspberry pi , AVR Microcontroller , 8051 Microcontroller , motors controlling (stepper , servo , DC motors) , LED matrix , USBasp Programmer, different types of sensors

I Design, Develop, & Mass Produce Electronics / Industrial Products with ↳7️⃣+ 𝒀𝒆𝒂𝒓𝒔 𝒐𝒇 𝑬𝒙𝒑𝒆𝒓𝒊𝒆𝒏𝒄𝒆 ↳ 𝑰𝒏-𝑯𝒐𝒖𝒔𝒆 𝑨𝒔𝒔𝒆𝒎𝒃𝒍𝒚, 𝑻𝒆𝒔𝒕𝒊𝒏𝒈 & 𝑴𝒂𝒔𝒔 𝑷𝒓𝒐𝒅𝒖𝒄𝒕𝒊𝒐𝒏 𝑭𝒂𝒄𝒊𝒍𝒊𝒕𝒚 ↳ 𝑺𝒖𝒑𝒑𝒍𝒚𝒊𝒏𝒈 𝑾𝒆𝒆𝒌𝒍𝒚 𝑺𝒉𝒊𝒑𝒎𝒆𝒏𝒕𝒔 𝒐𝒇 𝑹𝒆𝒂𝒅𝒚 𝒕𝒐 𝑺𝒆𝒍𝒍 𝑷𝒓𝒐𝒅𝒖𝒄𝒕𝒔 🌏 I partner with Enterprises, Tech Innovators, and Entrepreneurs to design, build, and scale smart connected products that seamlessly bridge hardware and software. From IoT devices to intelligent ecosystems, I deliver end-to-end solutions 2x faster by merging unmatchable engineering talent, timezone-aligned execution, and a relentless focus on integration. 𝑾𝒐𝒓𝒌 𝑬𝒙𝒑𝒆𝒓𝒊𝒆𝒏𝒄𝒆: I’ve designed multi-layer PCBs for a variety of processors and systems, including: - Microprocessors: ARM Cortex-M3, Cortex-M4 - Low-power Chips: Nordic nRF52840, nRF5340, nRF52832, ESP32, STM32WL series - System-on-Modules (SoM) and Custom Boards: CM4, Raspberry Pi, Orange Pi, iMX8, Jetson Nano/Xavier/Orin, RK3588, RK3568, RV1126 Rockchip, TI AM6254, and more - High-Speed Designs: USB 2.0, HDMI 2.0, DDR3/DDR4, PCIe, NAND Flash, Ethernet (10/100/1000base-T1), PoE++, and others - Power Supply Designs: DC-DC converters (isolated, flyback, boost, buck), LDOs, and more - Motor Driver Communication Circuits: BLDC, AC servo, DC servo with I/O, ADC, CAN interfaces - Analog Signal Processing Circuits: ADCs, DACs, Audio systems - Communication Protocols: QSPI, I2C, RS485, RS232, CAN, Modbus TCP/IP, RTU, and more - Wireless and IoT: RF, WiFi, Bluetooth (4.0), GSM (3G/4G/LTE), LoRaWAN I have substantial experience in building evaluation kits for various platforms like Arduino, ESP32, ESP8266, STM32, and others. I’ve developed the expertise to translate dimensional drawings into precise Gerber files, ensuring a high level of accuracy in the PCB manufacturing process. 𝐈 𝐚𝐥𝐬𝐨 𝐡𝐚𝐧𝐝𝐥𝐞 𝐛𝐢𝐥𝐥 𝐨𝐟 𝐦𝐚𝐭𝐞𝐫𝐢𝐚𝐥𝐬 (𝐁𝐎𝐌) 𝐜𝐫𝐞𝐚𝐭𝐢𝐨𝐧, sourcing components from reputable suppliers like Digikey, Mouser, JLCPCB, and LCSC. My experience extends to robotics, including the development of Automated Guided Vehicles (AGV), AMRs, vending machines, and 6-axis robotic systems. 𝐊𝐞𝐲 𝐒𝐤𝐢𝐥𝐥𝐬: - Routing Expertise: Clock signals, differential pairs, bus traces, single-ended traces with noise considerations - EMC/EMI Compliance: In-depth knowledge of proper layout techniques for electromagnetic compatibility and interference - Design for Assembly (DFA) and Design for Manufacturing (DFM): Familiarity with PCB manufacturing and assembly processes - Component Theory and Application: Strong understanding of electronic components, datasheets, and schematic designs 𝐅𝐢𝐫𝐦𝐰𝐚𝐫𝐞 & 𝐎𝐭𝐡𝐞𝐫 𝐂𝐨𝐦𝐩𝐞𝐭𝐞𝐧𝐜𝐢𝐞𝐬: - Managing the entire design and procurement process for PCBs, ensuring timely and cost-effective delivery - Excellent problem-solving skills and a proactive, research-driven mindset - Skilled in electrical evaluation, testing, and troubleshooting PCBs - Firmware development in C, C++, and Python, with additional proficiency in QT - UX/UI design for STM32 and Raspberry Pi platforms using Figma and TouchGFX - Familiarity with IoT protocols like MQTT, Thingsboard, AWS, and Blynk 𝐓𝐨𝐨𝐥𝐬 & 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐏𝐫𝐨𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲: - Extensive experience with PCB schematic capture and layout using Altium Designer (versions 18.x, 21.x), KiCAD (Ver 6.x, 7.x), Eagle (9.6.2), EasyEDA, and Altium365/CircuitMarker - Familiarity with simulation tools like OrCAD Capture and PSpice - Skilled in Gerber file inspection with CAM350 (version 12.1) - Proficient in AutoCAD and Autodesk Inventor for supporting design tasks Inbox Your idea, and let me develop it accurately.

Hello! I'm Angel, an expert in firmware development for embedded systems. With years of experience creating quality firmware code and prototyping innovative ideas, I'm ready to bring your vision to life. In addition to firmware, I also offer basic CAD design and PCB layout services to speed up your development process. Whatever you imagine, let's work together to make it a reality. I look forward to hearing from you! 🔧 Core Technical Skills • Embedded Systems • Embedded Firmware • ESP32 • FreeRTOS / RTOS • Microcontrollers • IoT Development • C / C++ • Low Power Firmware • BLE (Bluetooth Low Energy) • Wi-Fi Integration • Sensor Integration • UART / SPI / I2C • ADC / DAC • Interrupts • GPIO Programming 💻 Hardware/Prototyping Tools • PCB Design • KiCad • Schematic Capture • Prototyping • JLCPCB • Hardware Debugging • Multimeter / Oscilloscope