I’m using Prometheus to monitor my home office and homelab, I figured it would be cool to have a stack light show the active warnings and alerts from Alertmanager. So I made a HAT (Hardware Attached on Top) for the Raspberry Pi to drive a five-colored stack light.
AVR alarm disabling unit for production equipment
Simple unit to silence the audible alarm on a production equipment, uses an AVR ATtiny2313 microcontroller.
AVR alarm disabling unit for production equipment with long stop warning
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.
Module heartbeat monitor, 15 inputs — LCD and AVR
Detects and alerts if any of the monitored modules goes silent; meaning their heartbeat stops. Uses an AVR AT90S8515 microcontroller.
Sound alarm control unit — AVR module
Simple unit to control three sound signals; beep, siren and buzzer. Uses an AVR ATtiny2313 microcontroller.