Hidden treasures abound in the Adafruit store... and this is one. A little radio module with four pins that can be controlled from a battery powered key fob.
We will use those four pins to control the direction of each servo: forward, backward, left, and right.
Connect the pins of the radio module to the Arduino as follows.
Connect the pins of the radio module to the Arduino as follows.
- GND -> GND
- +5V --> 5v
- D0 ----> A0
- D1 ----> A1
- D2 ----> A2
- D3 ----> A3
If your robot keeps resetting or the radio doesn't seem to be working... voltage could be sagging below 5 volts - the radio module doesn't operate reliably below that threshold.
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