Hi, I'm currently building a arduino based robot platform. I would like too use two microcontrollers together A Mega 2650 R3 the serious stuff (Motor driving, Sensor Inputs, Xbee, GPS) A 5V pro mini 328 for auxillarys (Lights, Sounds, etc) Its too complicated in software to do all that on just …

Using a Mega and 5v Pro Mini together.

CrossRoads August 28, 2012, 2:41pm 2

You can connect straight UART - Rx to Tx, Tx to Rx.

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