Paper Circuit Pin

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Step 4: Installing Battery and Switch

Once the LED is installed, it’s time to test our circuit by adding a battery. Carefully slip the battery underneath the folded flap we made earlier, and center it inside the circle icon. Make sure the positive side of the battery (top, marked with the battery model and +) is facing up.

Press the flap over the battery, then use the binder clip to hold everything together.

Flip the project over, and use the handle of the binder clip as a switch to connect the battery to the rest of the copper tape circuit. Flip it back up to turn off. The back handle can be flipped down and taped for extra stability.