A desk panel box full of LEDs, buttons and switches. Built for the rack box project.
RS-232 interface module, with voltage measurement. Used to communicate with the emergency power off unit in the Rack box project. Installed inside Rack box status panel. Uses an AVR ATmega8 microcontroller.
RS-232 interface module, with 9 inputs and 9 outputs. Uses an AVR ATmega8 microcontroller.
RS-232 input module, with 11 inputs. Rebuild of previous RS-485 module. Uses an AVR ATtiny2313 microcontroller.
Detects and alerts if any of the monitored modules goes silent; meaning their heartbeat stops. Uses an AVR AT90S8515 microcontroller.