This article is about making an intruder alarm using Arduino and PIR sensor. ... Circuit Diagram. Step 5: Getting Started With Arduino. If you are not already familiar with the Arduino IDE, don’t ...

Power up the sensor through Arduino and connect the A0 pin of the sensor to A5 of Arduino. Connect a buzzer and an LED in a parallel configuration. Connect their one end to the ground of Arduino and ...

Note: This project requires 5v 2A minimum to work and failure on giving this current rating will result in non-function of the circuit. Functions of Switches as follows. S1: Menu (Time Date Edit ...

This Arduino based Real time clock is a digital clock to display real time using a RTC IC DS1307 which works on I2C protocol. Real time clock means it runs even after power failure. When power is ...

Arduino based Fire Alarm – Circuit and Working. Fig. 2 presents the circuit diagram for the fire alarm using a flame sensor and Arduino Nano. The system is powered by a step-down transformer (X1), a ...