Library for Atmel AVR microcontrollers to provide text output on a television
This is a library for use with #Atmel_AVR microcontrollers to provide #text output on a #television set using nothing more than two resistors and a 20MHz crystal oscillator.
It has been primarily developed for use with the ATmega168, but should be portable to other AVRs.
It outputs the picture signal on the most-significant bit of a user-defined I/O port. The remaining bits in the PORT register will be effectively filled with random data, but can be used as input pins (watch out for the internal pull-up resistors being enabled!) The sync signal is output on a single pin on one other I/O port – the rest of that port can be used as normal
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