The only thing that you are connecting to the Arduino is the PIR sensor, so you could if you prefer simply push the wires attached to the PIR sensor directly into the Arduino board. However, the wires from the sensor, are a bit loose in the Arduino sockets so it is probably better to use the breadboard layout below.
This guide was first published on Feb 28, 2013. It was last updated on Feb 28, 2013.
This page (Breadboard Layout) was last updated on Sep 23, 2020.