Electronics design engineer, have a Masters degree in Control systems.... Passionate about designing Embedded devices and PCBs.... With customer satisfaction a priority. I let my work profile speak for myself. Proudly boost my top rated status and 100% happy clients...

With my hard-earned expertise in electronics and firmware, I am committed to take challenging aspects of your project and helping you achieve success. I have solid technical background in embedded electronics, accumulated from 6+ years of professional services as an electronics engineer. I am specialized in analyzing, designing, and prototype embedded systems in the range from simple gadgets to connected IoT sensor nodes. My versatility allows me to walk through the entire development cycle to arrange an end-to-end delivery with assured quality. Skill Highlights: - Embedded C, Bootloader Development, Firmware Over-The-Air Updates (OTA/FUOTA), BSP - Amazon FreeRTOS, TI-RTOS, Micrium uC/OS-III, Baremetal C - WiFi, BLE, LoRaWAN, Ethernet, Zigbee, Cellular, GPS, GSM, LTE-M, NB-IoT - TCP/IP, UDP, MQTT, HTTP, NTP, mbedTLS, Modbus - GPIO, ADC, DAC, PWM, I2C, I2S, UART, USART, SPI, RS232, RS485, USB, CAN My key strength: - Firmware Development: I have worked with various MCU families, including ARM Cortex-M, Microchip AVR, Espressif ESP32 and Arduino. I have both theoretical and practical aspects of different peripherals, interface protocols and sensor devices. - PCB Design (Altium/KiCad/Eagle): I am experienced in designing double-sided and multi-layer PCBs. I have a strong emphasis on manufacturability of my design. I follow industry best practices to make my design works at the first time. - Hardware Prototyping: I have a well-established hardware developing and prototyping facility. I have quality equipment in my lab to accelerate product development endeavors. I own 2CH 100 MHz Oscilloscope, 8CH 50 MHz Logic Analyzer, Cortex-M Debugger with Tracing Capability, Static Analyzer, Professional LCR Meter. Last but not least, I have tools for PCBA prototyping and rework.

I'm Paul and I have 7 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. Quality and schedule are two criteria I always commit to with my clients so I look forward to hearing from you so we can discuss more the job as well as have the opportunity to cooperate with you for a long time. 1. WORK EXPERIENCE - Multi-layer PCB design experience with: • Microprocessor circuit: ARM Cortex-M3, Cortex-M4, Cortex-M7, AVR, PIC, ATSAM3x8E (Arduino Due), ATMega2560 (Arduino Mega), nRF52840, nRF5340, etc. • SoM, SoC: CM4, Rasp, iMX8, Jetson Nano/Xavier/Orin, RK3588 Rockchip, AM625,... • High-speed: USB 2.0, HDMI 2.0, DDR3/DDR4, PCIe, NAND Flash, Ethernet 10/100/1000base-T1, 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), Lora... - 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. 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... - IoT: MQTT, Thingsboard, AWS, Google IoT... 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 - Basic use of support tools such as AutoCAD, Autodesk Inventor…

✔︎ Expert with 8 years of embedded device development. I generate simple solutions to complex issues and try to put a little part of me into everything that I create - whether it’s making design recommendations or proposing ideas for boosting the performance. ✔︎ Provide FULL-CYCLE design from Idea to Mass Production: Electronics, Firmware, Product Design, Software, Prototyping, Manufacturing. I deal with companies based in East Europe, which enable me to provide you better prices for manufacturing than China, with European quality and without additional customs fees. ✔︎ Have experience in experimental physics, the creation of experimental facilities, and research in the field of plasma physics. ✅ I am strongly experienced in various areas of electronic design: Embedded systems; Analog circuits; Digital circuits; Low power & battery-operated devices; Wireless designs; Micro controller ( AVR, STM8,STM32, MSP430, TMS320, etc); DSP, SDR, RF, UHF design. ✅ I have specific microcontroller experience with: Atmel: AT90CAN and AVR32 series Silabs: EFR32 Gecko BLE/ZigBee family ST: STM32 ARM Cortex series Cypress: EZ-USB® FX3, PSoC3, CY7C68013 Xilinx: Spartan, Zynq series. TI: TMS320, MSP430 series Espressif Systems: ESP32 Nordic: nRF52, nRF9160 🦾 Embedded platform: Raspberry Pi Beagle Bone Mediatek MT7688 Ratlink RT5350 Atheros AR9331 Paralela Zynq Qualcomm snapdragon 410,800 Nvidia Tegra TK1 👨‍💻 Programming languages: C/C++, Assembler, Python, VHDL, Java, OpenCV, C#, PHP, JS 🖥 Operating systems: Embedded Linux, RTLinux, FreeRTOS, embOS, QNX, VxWorks 🛰 Standards and technologies: WiFi, Bluetooth, BLE, LoRa; OLED, LCD, TFT; «Altium designer» for PCB development; Inductive and capacitive sensors technologies; Ultra low power electronics Power harvesting;

I am a professional embedded engineer with more than 10 years of experience in embedded systems, IOT solutions, embedded linux and automotive solutions development. ⭐ I have worked with world leading embedded software development organizations like Mentor Graphics, Siemens and u-blox. I got an experience of working through complete product development life cycle and have lead multiple teams in above organizations. I got expertise on following area: ✅ Embedded systems Platforms Atmel: 8051 and AVR32 series Microchip: ATSAMD21, ATSAME54, ATSAME51 Silabs: EFR32 Gecko BLE/ZigBee family, WiFi WF-200 ST: STM32F4, STM32F1, STM32Lxx series Cypress: PSoC3, CY7C68013 Xilinx: Spartan, Zynq series. TI: TMS320, MSP430, CC2564, CC2540b etc. Espressif: ESP32, ESP01, ESP8266 Nordic: nRF52, nRF9160 NXP: i.MX 6, i.MX 8 Others: Raspberry-pi, Beagle-bone 🖥 Programming Languages C , C++, C#, Python, Assembly 🖥 Operating Systems | RTOS Nucleus, FreeRTOS, MbedOs, ZephyrOS, QNX, TI-RTOS, embedded linux, raspbian, Debian ✔ ShortRange Connectivity - WiFi (IEEE 802.11 a/b/g/n/r) - BLE 4.2/4.0/5.1/5.2 standalone and Host based modules (LMP, L2CAP, SMP, GAP, GATT etc.) ✔ Long Range Connectivity - LTE CAT1 / CAT M1, NB-IOT, 2G/3G/5G modules - RF and Lora modules (SX1278 etc.) ✔ PCB Designing Altium Designer, Easy EDA, KiCAD, Proteus, Eagle ✔ Version Control SVN, Github, GitLab ✔ Communication protocols SPI, I2C, UART, RS485, USB, CAN, PCIe, ModBus ✔ Cloud platforms AWS, GoogleCloud and Azure ✔ Network Protocols: LWIP, TCP/IP, DNS, NAT, ARP, MQTT/HTTP, COAP protocol ✔ Protocol Analyzer and debugger - Code-Worrior, j-link, D-Stream, St-link - SPI/I2C, USB protocol analyzer - Wifi, BLE Wireshark protocol analyzer ✔ Project Management: Agile development model - Scrum meeting - Epic design - Sprint planning and task break down of feature development. ✔ Power management 1. Modified existing CPU, clock management, power management drivers for different platforms. 2. Deep Sleep or sleep modes 2. Dynamic Voltage and Freq switching 3. User Input Indication 4. Battery charging and management System design etc. I am enthusiastic and passionate working with more experienced person. I am passionate person towards technology and i can contribute towards your success with out of box and economical embedded software solutions.

"Ahmad is the best dude on the planet, he has deep knowledge in IOT, Python, SQL, Databases, Encryption and certificates, me and him were working day and night for 3 straight months, this dude doesn't get tired, he's been helping with a wide smile and a welcoming heart and mind, much appreciation to him, if your looking for someone to do your stuff, Ahmad is the man" , Top comment - Mr.Moayad - Upwork Client Greetings! I'm Ahmed Qandel, your Embedded System Engineer extraordinaire. With a master's degree in electronics and over 14 years of dedicated experience, I am your go-to expert for transforming concepts into cutting-edge embedded solutions. ENGINEERED SUCCESS ➡️ 14+ Years of Mastery in Embedded Systems ➡️ Master's Degree in Electronics ➡️ Over 5000 Hours of Proven Expertise ➡️ Spearheaded 300+ Successful Projects Worldwide Why entrust your project to me? 🚀 Technical Expertise: My extensive experience spans the intricate landscape of embedded systems, from architecture design to firmware development. I've mastered the art of transforming complex concepts into seamlessly integrated solutions. 🌐 Global Impact: With a portfolio boasting over 300 successful projects worldwide, I've demonstrated the ability to navigate diverse environments and deliver tailored solutions that transcend geographical boundaries. 💡 Innovative Solutions: I approach each project as an opportunity to innovate. My solutions go beyond meeting requirements; they redefine what's possible, ensuring your project stands out in a competitive landscape. 🛠️ Proven Track Record: Backed by a track record of 5000+ hours of dedicated work, I've consistently delivered results that exceed expectations. Your project isn't just a job; it's a commitment to excellence. Let's propel your embedded systems project to new heights together. The Technological Maestro, Ahmed Qandel🔧🔥

Being a hardware designer and PCB designer with more than 7 years of expertise, I had worked on numerous hardware designs and development projects. I had created PCB designs, IoT, ASIC, FPGA, and microcontroller-based hardware that was space qualified. Here is a list of specific fields of expertise applied to my latest projects; - Microcontroller, SoC, and Control modules. - Analog/Digital interfaces: I/O, ADC, DAC, PWM, Comparator. - Communication ports: SPI, I2C, Serial, SDI, MIPI, IR, HDMI, SATA. - Power Supply Design: Linear, LDO, Switching Buck/Boost. - RF up to 2.4GHz. - IoT sensors: Temperature, humidity, pressure, magnetic, etc. - Wireless technologies: Bluetooth, Zigbee, WiFi, GSM, GPS, Cellular. If you are looking to design PCB(1,2,3,4--16) layer for your Circuit, then you are in the right place. I can also provide help in the schematics design and manufacturing process. I can also deliver finished prototypes of your products. If you don't have a schematic, send me your requirements. I will come up with a schematic and PCB. Softwares: For PCB Designing, I Mostly use the latest version of Altium Designer, but I can also use other software: * Orcade * Zuken CADSTAR * Porteous * Eagle * KiCad * EasyEDA I can provide output : * Schematic Design * PCB Design * Gerber files for manufacturing * Bill Of Materials (BOM) * 3D Models of PCB * DXF file for Mechanical drawing, etc. Why me? • Provides revisions until you are 110% satisfied. • Meets deadlines and does not compromise on quality. • Ensures timely updates with responsibility. Don't hesitate to reach out to me. I'm interested to hear what you are working on, and I'll be honest about what I can contribute.

►Capabilities: ----------------- ☑ Design, review, hand-assembly, troubleshooting, and rework of electronic designs. ☑ Microcontroller programming. ☑ High-speed signal routing (USB, HDMI, Ethernet, etc.) involving microprocessors or FPGAs with DDR3 or DDR4. ☑ Ultra-low power designs consuming microamps during standby for long battery life. Use of Altium Designer, KiCad, and Cadence OrCAD. With my Altium subscription, I can share designs over Altium 365 to provide you with a convenient view of progress through your web browser. ☑ PoC (Proof of Concept) app development using HTML, JavaScript, Python, Java, Microsoft Windows, and Linux. ☑ In-house equipment including an oscilloscope, multimeter, power supply, soldering iron, hot-air rework station, hotplate, and optical inspection equipment. ► Typical Deliverables: ---------------------------- ☑ PDFs of schematics, image previews of board layout, and all design files. ☑ Bill of Materials (parts list spreadsheet, prices from desired vendors). ☑ Microcontroller/application code (C, C++, Java, Python, HTML, CSS, etc.). ☑ Two or several hand-assembled PCBs. ☑ For high-volume production, an affordable arrangement for turn-key manufacturing. ☑ Free troubleshooting support for simple problems long after an ended contract with me. ► Typical Design Workflow for Circuit Board Design from Start to Finish: ---------------------------------------------------------------------------------------- Actual workflow may vary for unique projects, but each step of the way I will work with you to ensure your requirements are met. 1️⃣. The client shares their initial requirements (ideas, features, recommended parts, etc.). 2️⃣. Estimation for hourly/fixed-price. Projects with: a) well-defined requirements, fixed-price is acceptable, b) requirements that are more open-ended, hourly is acceptable. 3️⃣. A contract is started. 4️⃣. An initial schematic is designed with readily available components, along with a BOM (Bill of Materials). Development boards, breadboards, and simulators can be used for prototyping before circuit board design. 5️⃣. Circuit board placement and layout. 6️⃣. Prototype material procurement: BOM is ordered. Gerber files are generated and sent to a circuit board fabricator for the production of bare boards. 7️⃣. Bare circuit boards can be hand-assembled in-house by me. For more complex boards with hundreds of surface-mount parts, turn-key manufacturing can be arranged. 8️⃣. Prototype boards are tested according to the client's requirements. 9️⃣. All design files are updated to reflect any modifications needed for the prototype circuit board. These files are shared with you, the client. 🔟. Now any capable electronics manufacturing service can produce your project. I have been professionally consulting with clients since 2018. Please feel free to challenge me with your interesting projects! I strive to answer invites within 24 hours.

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

Experienced engineer specializing in electronics and product design, with a keen focus on intricate printed circuit board designs, prioritizing manufacturability. My expertise spans the entire product development cycle — from conceptualization to prototyping, utilizing in-house tools for design, construction, programming, and rigorous testing. I possess a diverse portfolio, having contributed to various industries. This ranges from formulating initial concepts and building prototype devices, to orchestrating the seamless transition to large-scale production manufacturing. More detail about Embedded platforms of my design experience: Primary Offerings: - Hardware Design and printed circuit board (PCB) layout with Altium Designer - MCAD collaboration for product design - Build and test prototypes(in-house assembly capability and testing equipment) - Help and management in product manufacturing - Troubleshoot and fix incomplete or failed designs - Bare-metal and RTOS based firmware development I have crafted an extensive array of circuit boards, encompassing: - Standard 2 and 4-layer boards with surface mount and through-hole components - HDI boards upto 14-layers - Highspeed boards with controlled impedance and length matching - Flex and rigid-flex boards for complex mechanical shapes - Products having Bluetooth, BLE, WiFi, serial interfaces(SPI, I2C, RS-232, RS-485, CAN) and highspeed interfaces(USB2.0, USB3.0, PCIe, SATA, MIPI CSI-DSI, Ethernet). Whether it entails transforming an existing Arduino/Raspberry Pi prototype into a marketable product or crafting an entirely new offering from its inception, I take pleasure in delivering tailor-made technical solutions that precisely align with your requirements. Have any product idea, contact me through Upwrok to discuss!