Hi everyone ! I built my own drone and now I'd like to add a system that enables it to land or takeoff automatically (when you press a button), by using an Ultra Sonic range measurement sensor. I needed to know what is the smallest BT board supporting the arduino environment. Thank you.

Small BT board

CrossRoads July 29, 2015, 5:02am 4

'328P or 1284P?

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