Intelligent Solar Garden Light - Part 2

Step 2 Attach PIR

I've wired the positive power to the switch builtin to the light controller. The ground wire goes directly to the negative side of the battery bay. The original positive power wire for the PIR sensor is taped up so that it doesn't short anything out. The analog output from the sensor goes to analog input A1 on the Wee. On this particular sensor, it goes low (<1V) when motion is detected.