Arduino: Making a set of traffic lights

Step 4 Piezo

We will be coming back to this and will need to lift it to install jumpers to the Arduino but for now just put it in place with one pin on either side of the central divide so we don't short between the two pins.

The bread board pins are connected from left to right in two sections of 5 with a divide in the middle to separate the two sections, and the 2 outer pins are connected from top to bottom in two columns, these are on both sides but are not connected from one side of the board to the other, in other terms these can be used to provide two separate circuits independent of each other if required.

Additionally on some boards the top and bottom halves are not connected so you may have to make the jump using a wire from the top half to the bottom half if your circuit does not work.