RP2040-based AZ/EL rotator controller for SatNOGS-compatible satellite ground stations. Custom PCB, PID motor control, EasyComm/hamlib protocol over USB.
RP2040-based AZ/EL rotator controller for SatNOGS-compatible satellite ground stations. Custom PCB, PID motor control, EasyComm/hamlib protocol over USB.
ESP32 DVD pen plotter with HW-130 L293D shield: custom firmware, socket-plug wiring, USB/Bluetooth G-code
Custom 4-layer interrupter control board for DRSSTC systems. STM32F405-based, fiber-optically isolated outputs, hardware E-brake safety chain, and controlled-impedance routing (90Ω USB, 50Ω FSMC/SDIO). Designed in KiCad 9.0.
Development/eval board for Lattice MachX02 FPGA, TPS543320 & TPSM8282 DC-DC converters, and FTDI2232H USB-JTAG chip.
Battery case with electronics for charging and protection of battery cells. Composes of 2s li-ion 3,7V battery cells. Includes undervoltage, overvoltage and overcurrent protection. As well as reverse voltage protection. Is charged from USB type-C connector. Support statistics over USB and have battery voltage indication via LEDs.
A small (3.5" x 5.6") Colecovision Portable that uses composite output and +5v power supply.
A platform for building interactive control and sensing devices using MIDI and OSC built with Zephyr RTOS.