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joel_12henry

Joel Henry

@joel_12henry

PCB Design, Embedded System and Firmware Development

United Kingdom
English, French, Spanish
About me
Hello There, I'm Jeol Henry, an Embedded Hardware and Firmware Engineer focused on developing practical electronic systems from initial concept through working prototype. My experience includes schematic design, PCB layout, component selection, microcontroller programming, peripheral integration, and hardware debugging. I develop firmware in C/C++ for STM32, ESP32, and other microcontroller platforms, working with UART, SPI, I2C, CAN, and GPIO interfaces. I also handle hardware bring-up, troubleshooting, testing, and hardware-firmware integration.... Read more

Skills

j
joel_12henry
Joel Henry
Offline • 

See my services

Embedded Systems & IoT
I will design custom automotive can bus gateway and ecu communication control module
From$250 / projectMore details
Embedded Systems & IoT
I will design stm32 industrial controller pcb with rs485 modbus and sensor interface
From$300 / projectMore details

Work experience

Fiverr

Firmware Development Engineer

Fiverr • Freelance

Sep 2023 - Present • 3 yrs

Managed end-to-end embedded product development, from electronics architecture and PCB design to firmware implementation, hardware integration, testing, and debugging. Developed microcontroller-based systems with real-time control, sensor interfaces, communication buses, power management, and IoT connectivity. Collaborated across hardware and software requirements to troubleshoot complex issues, optimize system performance, validate prototypes, and deliver scalable production-ready embedded solutions.