33 high intensity LEDs are controlled with a AVR ATtiny2313 microcontroller. Four flashing patterns that can be set manually or cycle through. Uses an AVR ATtiny2313 microcontroller.
AVR alarm disabling unit for production equipment
![AVR alarm disabling unit for production equipment](https://blog.cavelab.dev/2007/06/avr-production-line-alarm-disabler-2/cover_hu3956814281133482004.jpg)
Simple unit to silence the audible alarm on a production equipment, uses an AVR ATtiny2313 microcontroller.
Home power consumption measuring unit, with AVR
![Home power consumption measuring unit, with AVR](https://blog.cavelab.dev/2007/05/avr-power-consumption-measuring/cover_hu15834938705750879890.jpg)
Measures the power consumption by counting LED pulses from the home fuse box. Measurements can be read via a serial interface, uses the AVR ATtiny2313 microcontroller.
Serial port I/O module with 11 inputs — AVR
![Serial port I/O module with 11 inputs — AVR](https://blog.cavelab.dev/2007/05/avr-serial-interface-11-in/cover_hu4707931804979647812.jpg)
RS-232 input module, with 11 inputs. Rebuild of previous RS-485 module. Uses an AVR ATtiny2313 microcontroller.
4-channel electronic switch and voltage regulator
![4-channel electronic switch and voltage regulator](https://blog.cavelab.dev/2007/04/avr-electronic-switch/cover_hu1352025293513122467.jpg)
Electronic switch for LED lights, 4 channels, 9 to 24 volts in, 5 volts out. Uses an AVR ATtiny2313 microcontroller.