Solder Time
This step involves a bit of soldering. You'll need to connect three jumper wires to the NeoPixel ring, one to PWR, one to GND, and one to IN.
NeoPixel Ring
Solder jumper wires to the NeoPixel ring.
Using pliers to give the end of the wire a slight bend makes it easier to solder it into place.
Potentiometer
Connect jumper wires to the legs of the potentiometer.
On these types of potentiometers the leg on the left is ground, the middle leg is the signal output, and the rightmost leg connects to power.
Complete Circuit
Use jumper wires to connect the potentiometer and NeoPixel ring to the alligator clips connected to Circuit Playground Express.
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