Cut the battery pack off the fairy light strand. It's easiest if you cut the thicker shielded wires near the battery pack instead of cutting through the thin copper wires closer to the lights. Those copper wires have a resin coating and they're very tiny, which makes them tricky to solder to (though not impossible! Just scrape the resin off with a utility knife first).

Strip a bit of shielding from your wires. One of these wires will connect to G on your Circuit Playground and the other will connect to A1. Which is which? I have no idea.

We'll figure it out by trial and error. With your code uploaded to your Circuit Playground and a power source plugged in, touch the wires to pins G and A1. If the strand lights up, you've got it right! If not, try them the other way.

You can solder the wires in place if you've got a soldering iron handy. Otherwise, grab your bolt-on kit and pull out two screws and two bolts. 

I find it easiest to loop the wires down through the holes on the Circuit Playground and then push the screw in on top, and then secure it all with the bolt on the back of the Circuit Playground.

Next we'll attach a short 3-4" wire to pin A3. This wire will get stuck to our copper tape and transfer the capacitive touch signal from your finger to the board.

You can solder or use another screw and bolt from your bolt-on kit.

Strip a lot of shielding from the far end of the wire. Touch the bare wire and watch your lights go on and off.

This guide was first published on Aug 26, 2020. It was last updated on Mar 08, 2024.

This page (Electronics Assembly) was last updated on Mar 08, 2024.

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