The relay module will need 5V from Arduino to power up and will get input from four different digital pins of the Arduino. Now let’s connect the relay module to your home appliance. Take the positive ...

If so, remember to connect the VCC pin to 5V of the Arduino board to enable the control input pins IN1 and IN2. Also note at this point that, if you want perfect galvanic-isolation, do not link ...

Simple No-Frost controller for refrigerator using an Arduino It was made and tested using an Arduino UNO and some DIY modules: 5v Relay module DS18B20 temperature sensor Push button module (I use the ...

This is an embedded systems project whose purpose is to act as an automatic watering system that measures a plants moisture and waters it if the plants moisture threshold is not reached. Firstly what ...

A 5V single-pole, double-throw (SPDT) relay used to control the load (230V AC, 60W bulb) acts as a switch. The 5V power supply is connected to the 5V (Vin) and GND pins of the Arduino Nano to enable ...

If you have a bare RGB LED instead of a module in a breakout board, you can make something akin to a module by attaching resistors on each of the color pins. The resistance value varies per ...