I'm trying to connect my Arduino Uno to my Raspberry Pi using the Rx/Tx pins instead of USB. I understand there is a difference in voltage, where the Pi uses 3.3V and the Uno uses 5V. Is it possible to use optocouplers to do the connection? I have two 4N35 here. I'm a proffessional programmer but I…

Connect Arduino to Raspberry Pi with Tx/Rx

system June 1, 2013, 6:41am 5

Thank you so much guys!

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