Relay-Interfacing-with-Arduino This project demonstrates how to interface a relay module with an Arduino to control high-voltage appliances safely. The setup involves using a relay as a switch, ...

Automatic Plant Watering System Block Diagram The below block diagram gives us a clear view of how this automatic plant watering system will work. Basically we have the Arduino Uno R4 which will read ...

Build an Arduino-based smart helmet with RF transmitter & receiver featuring theft, wear, alcohol, and drowsiness detection. Simple DIY project with easy-to-follow circuit diagrams, code, and ...

Circuit and Working Fig. 2 shows the circuit diagram of the humidifier. The system is built around an Arduino Uno (MOD1), a 5V SPDT relay module, a humidity sensor (DHT22), an ultrasonic humidifier, ...

In this post we are reviewing the ESP-01 Wi-Fi Relay Module. It is one of the cheapest smart switches you can purchase currently for making smart home, internet of things, and other wireless do it ...

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 ...