Multi-purpose AVR module

Multi-purpose AVR module

Monitors the Rack box status panel, IR sensor, porch door and turns off lights. Uses an AVR ATtiny2313 microcontroller.

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Multiplexer output extender

Multiplexer output extender

Get more digital outputs on your I/O device with a multiplexer, 3 outputs turned into 7.

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Sound alarm control unit — AVR module

Sound alarm control unit — AVR module

Simple unit to control three sound signals; beep, siren and buzzer. Uses an AVR ATtiny2313 microcontroller.

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Fan controller with LCD — AVR powered

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.

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Emergency power off controller — controlled by 555 timers

Emergency power off controller — controlled by 555 timers

Emergency stop controller for the rack box project. Uses two 555 timers.

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