CodeBug’s legs are very sensitive, they can feel electricity passing through them. In this mode CodeBug’s legs are called inputs.

Buttons and switches work by controlling whether two contacts are connected or not. When the button is pushed, or the switch flicked on, the two sides are connected and electricity can flow, but in the off state no electricity will flow.

Sew your buttons in the same way you sewed the LEDs. Sew one ring of the button to the GND leg on CodeBug and the other ring to the leg 1 on CodeBug.