Arduino: Making a set of traffic lights

Step 5 Button

The button has 4 pins, ensure these are all connected and don't bend then like with the Piezo have it sit across the central divider.

Next from the top wire the top right hand pin into the red side of the vertical pins, like the LEDs (see the 2nd image attached below)

Use the resistor BROWN BLACK ORANGE GOLD (10k) and wire it as shown in the 4th image attached below. (From the bottom right running vertically down the board, a small way 1 inch is enough).