pcb design embedded system and firmware development
United Kingdom
English, German, Spanish
About me
Hi, I'm John L99, a PCB Design and Embedded Systems Engineer specializing in custom hardware and firmware development. I design high-performance schematics, multilayer PCBs, and optimized firmware using Altium Designer, KiCad, EasyEDA, STM32, ESP32, Nordic nRF, AVR, PIC, and ARM MCUs. From IoT and RF electronics to industrial automation and medical devices, I deliver reliable, production-ready solutions with complete engineering support from concept through manufacturing.... Read more