Because this setup consumes more current, and ordinary PC USB ports can’t deliver it. The power adapter simply has to be connected to Arduino UNO and is not shown in the above circuit diagram. In the ...

This guide will walk you through building a simple vibration/earthquake detector using an accelerometer sensor and Arduino. The system is designed to detect vibrations or small seismic activities, ...

This project demonstrates the design and programming of an electronic circuit using the LM35 analog temperature sensor with Arduino. The circuit reads temperature values from the sensor and displays ...

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 ...