In the microcontroller era today, Arduino is more than just a tool to accomplish hobby tasks. There is actually a close relationship between microcontroller technology and home security, since you can ...

A simple way to think of the sensor is a switch; the diagram below ... Here is the circuit for the Sparkfun Active Low style sensor. PIR Pin “+” connects to Arduino +5 one side of the 10K ...

Let me introduce another simple microcontroller-based do-it-yourself circuit that ... regulator, and Arduino IDE compatibility. The code is an Arduino project for the Digispark Attiny85 to turn on a ...