Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — either via Bluetooth or Wi-Fi.

This project involves controlling a relay using a Light Dependent Resistor (LDR) and an Arduino. The system detects the ambient light intensity using the LDR sensor. Based on the detected light level, ...

A complete IoT solution for controlling an 8-channel relay module using an Arduino Uno, integrated with a Telegram bot for remote control. Resources. Readme License. MIT license Activity. Stars. 0 ...

The relay was very conservatively rated, both in terms of both current and voltage, and mounted on a generously sized heat sink. The system worked slick for a good two years, then one day, no heat.

This paper aims to design a digital overcurrent relay with a characteristic of a standard inverse that can comply to the IEC standard 60255. The overcurrent relay which is used to protect one phase of ...

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 ...