Infrared repeater using AVR mcu

Infrared repeater using AVR mcu

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Madis Kaal @ nomad.ee designed a infrared repeater based on ATMEL AVR + TSOP1738 infrared receiver. He writes:

I built this MCU based infrared repeater to allow me to control my A/V equipment that is behind a wall. The system is very simple.

Power is supplied to CON1 from a cheap Alcatel phone charger that outputs stabilized 12V, passes through reverse voltage protection diode to IC1 that outputs 5V VCC. Atmel AVR microcontroller runs from 4MHz ceramic resonator Y1, C3+R1 form a reset circuit. Infrared detector (TSOP1738 in my case) is connected to INT0 input, C1+R2 are for detector power filtering.

Infrared repeater using AVR mcu – [Link]

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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