We have built a very simple Motion detector circuit here. We are using a HC-SR501 PIR Sensor, an LED (which will glow whenever there is a motion infront of the sensor) and resistor.

The circuit involves a PIR sensor as the motion detector, a relay to control the power to the bulb, and a transistor to drive the relay. The PIR motion sensor light wiring diagram is shown below.

Arduino Motion Sensor – Circuit and Working The circuit diagram of the automation device using a motion sensor is shown in Fig. 2. It consists of an Arduino Nano board (MOD1), a PIR sensor (S1), a ...

Unfortunately, real-motion detection requires rather more sophisticated and thus more expensive sensor. However, the microwave motion sensor module -HB100- introduced here makes the task sweet and ...

This IR motion sensor relay switch circuit is designed for use with all kinds of medium-power automobile/domestic 12V DC loads. It is a simple solid-state relay (SSR) switch, controlled by a standard ...