I need to connect a pair of UNOs together over serial the first (master) will be connected to PC using normal USB that's working fine :slight_smile: I want to be able to pass commands to a second UNO (slave) my plan (four-letter word I know!) is to use SoftwareSerial on the master and connect p…

simple serial between two Arduino

CrossRoads April 25, 2014, 2:22pm 3

Don't forget to connect Gnd to Gnd also.

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