Simple unit to silence the audible alarm on a production equipment, additional warning if not resolved within 30 or 60 minutes. Uses an AVR ATtiny2313 microcontroller.
Multi-purpose AVR module
Monitors the Rack box status panel, IR sensor, porch door and turns off lights. Uses an AVR ATtiny2313 microcontroller.
Sound alarm control unit — AVR module
Simple unit to control three sound signals; beep, siren and buzzer. Uses an AVR ATtiny2313 microcontroller.
Controller for lights and relays — AVR driven
Control three lights or relays, with toggle switches and status LEDs. Uses an AVR ATtiny2313 microcontroller.
Module heartbeat monitor, 6 inputs — AVR
Detects and alerts if any of the monitored modules goes silent; meaning their heartbeat stops. Uses an AVR ATtiny2313 microcontroller.