Each wire connected to your servo has a different job and needs to be connected to the right spots on your Circuit Playground Express for it to work.
To get started, gather the following supplies.
- 1 x Circuit Playground Express
- 1 x positional servo (the label will say Fitec or Feetech Continuous Servo FS90R )
- 3 x jumper wires with alligator clips
Each servo wire does a specific job. You know which job it does based on the color.
- Brown Wire is the ground wire.
- Red Wire is the power wire.
- Orange Wire is the signal wire. This wire is used by the Circuit Playground to control the servo’s movement.
The jumper wires also have colors, but they don’t mean anything like they do on a servo. They are different colors to help you know where each wire is connected.
The jumper wires do not need to match the colors of the servo wires.
Connect the Wires
Connect the jumper wire metal pins to the servo wires. It doesn’t matter which wire is connected to each other at this point.
Connect to the Circuit Playground Express
You next need to connect the alligator clip part of the jumper wire to specific spots on the Circuit Playground Express. Squeeze the alligator clip to open it and connect it through hole/pin.
- Connect the Brown Wire to a spot that says GND. My brown wire is connected to the purple jumper wire. (GND is short for ground)
- Connect the Red Wire to a spot that says 3.3V. My red wire is connected to the green jumper wire.
- Connect the Orange Wire to the spot that says A1. My orange wire is connected the orange jumper wire. You can also connect to the A2 spot. It just depends on which one you used when you program your servo.
Test Your Servo
You will need connect your Circuit Playground to power and upload a servo program to test your wiring.