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.
AVR mood light, 100mA per channel
Simple mood light controller with three PWM channels, max 100 mA per channel. Uses the AVR ATmega8 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.
Electric heater and timer controller — AVR
Controls an electric heater, and has a simple 15 minutes timer. Uses an AVR AT90S2313 microcontroller.
Multi-purpose AVR module
Monitors the Rack box status panel, IR sensor, porch door and turns off lights. Uses an AVR ATtiny2313 microcontroller.
Multiplexer output extender
Get more digital outputs on your I/O device with a multiplexer, 3 outputs turned into 7.
Sound alarm control unit — AVR module
Simple unit to control three sound signals; beep, siren and buzzer. Uses an AVR ATtiny2313 microcontroller.
Fan controller with LCD — AVR powered
Reads temperature and controls a fan using a PWM output, fan and alarm set point can be adjusted and is shown on a LCD. Uses an AVR ATmega8 microcontroller.
Emergency power off controller — controlled by 555 timers
Emergency stop controller for the rack box project. Uses two 555 timers.
Bilge pump controller for my dad’s sail-boat
Auto and manual override control of a boat pump that I built for my dad’s sail-boat.