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Controlling several bus powered I2C (TWI) devices with an AVR on a ribbon cable: Theory.

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Published on Jun 19, 2012

The Ultimate Relay Card goes ultimate. Some time soon it will support extension boards with 8 additional relay channels each, for a complete address space of 60 physical relays. In this video we talk about the circuit, the board and firmware as a principle of operation. Once I have verified all of this I will make a final video. Thanks for watching and for some nice comments ;)

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