I design and program embedded electronic devices. I'm familiar with many current microcontrollers, firmware stacks, communication interfaces including low power wireless and IoT.
I have experience with these areas
STM32, Nordic Semiconductor, Microchip, NXP, Espressif
USB, Ethernet, RS-485, Modbus, CAN BUS
NB-IoT, LoRaWAN, Sigfox, BLE
Lattice ICE40, Verilog, YOSYS OSS toolchain
C, C++, FreeRTOS, ZephyrOS