Simple motion sensor circuit diagram

Circuit Diagram for Automatic Room Lights using PIR Sensor and Relay. This automatic staircase light circuit can be easily explained. Whenever PIR sensor detects any body movement , its OUTPUT pin becomes HIGH, which applies the triggering voltage to the base of the transistor, transistor get ON, . A Simple Circuit , Controlled by two major Things.

This Can be Done on Perfboard too.

Output Pin Become from LOW to HIGH which result in 3.

In Return Transistor Will complete the Circuit and Relay will also turn on and off with transistor.

In our basic circuit , when the motion detector circuit picks up movement, a red LED will flicker on. Below is the schematic diagram of the motion detector circuit : . Here is the simple and reliable circuit which uses IR sensor for transmitting the IR beam and photo transistor for receiving the IR beam. Motion detector can be used as intruder alarm. If there is any disturbance or interference in . Follow this simple PIR motion sensor hacking tutorial to get started. Both the comparators consists of their own discrete light sensing components in the form of LDRs.

The circuit diagram of the motion detector using NE5timer is shown in Fig. The 230V AC mains is stepped down to . Here is the circuit diagram of an infrared motion detector that can be used to sense intrusions. If you really want an inductor buy one, it is much more simple and not hhorribly tedius using the formula for inductance that relies on coil length, turns and what not. Once motion is detected with this circuit , the LED in the circuit. We finished everything, now its the time for connect the bulb to the relay module as shown in the above schematic diagram.

Connect the power supply, thenTurn ON the circuit and test it as we done in the last step. To detect movement or motion of person the simple PIR (Passive InfraRed) circuit can be use it gives reliable output than simple photocell or photo diode circuits. This circuit constructed by one PIR sensor , a switching transistor SL 10 one Relay switch and indication le when . The rest of our equipment for this motion sensor circuit is pretty straightforward and is listed above.

PIR sensors are more complicated than many of the other sensors explained in these tutorials (like photocells, FSRs and tilt switches) because there are multiple variables that. This image shows the internal schematic.