You will see the front side of the circuit ... PIR sensors cannot detect motion through walls. They are designed to detect motion within their line of sight and are affected by physical barriers like ...

We have already used a PIR sensor for ... option to add LDR, and a sensor disabled input pin is available to turn off the detecting function at night if necessary. Wire up the Arduino to the RCWL-0516 ...

To begin explaining how a basic sensor works, we'll use this rather nice diagram The PIR sensor itself has two slots in it, each slot is made of a special material that is sensitive to IR. The lens ...

We can make an intruder alarm circuit at home which will be almost equally efficient for a specific range of distance and will be very low in cost. This article is about making an intruder alarm using ...

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 230V AC to 9V secondary transformer (U1), a ...

2: Block diagram of motion sensor alarm The circuit diagram of the motion sensor alarm is shown in Fig. 3. It consists of a PIR motion sensor (MS1), Arduino Nano (Board1), LM386 audio amp (IC1), and 8 ...

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 ...

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 ...

Circuit Diagram So in this article ... The heart of this project is Arduino Uno which is the microcontroller used in this project. The PIR sensor will sense any motion in the range of 6 meters and if ...

Connect the components as described in the circuit diagram. Ensure that the PIR sensor is connected to digital pin 2, and the relay module is connected to digital pin 8. Open the intruder_alarm.ino ...