Step 8Finish the Feet and Add the Speaker
The speaker can go pretty much anywhere inside the body. The best place to put it is up against the chest, and it stays in place pretty well on its own when held in place with stuffing. With the speaker in place, run its wires up through the neck and out the access hole in the head.
At this point you may solder the wires from the photocells and speaker to the last remaining positions on the circuit board. Attach a battery and turn it on to make sure everything works. It's (obviously) important to do this testing before everything is sewn up! I freaked out the first time I turned mine on and it didn't work, but I had forgotten to solder some components on the top side of the board. Oops.
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