Working of the Basic 5V Relay Circuit. In the above circuit, 5V relay is powered by a 9V battery. An ON/OFF switch is added for the switching purpose of the relay. At the initial condition when switch ...

The components are connected as shown in the circuit diagram (refer Fig. 2). The Arduino and relay module are powered using a 5V DC power source. Although the Arduino is compatible with an input range ...

Circuit and working. The circuit diagram of contactless hand sanitiser dispensing system is shown in Fig. 2. It includes 12V power supply, Arduino Uno (Board1), ultrasoic sensor HC-SR04 (US1), 5V ...

So, you can easily make this home automation project at home just by using an ESP32 and relay module. Or you can also use a custom-designed PCB for this project. This is the complete circuit diagram ...

I simulated the circuit in TINA-TI, applied a sinusoidal input signal, and plotted input-output waveforms. Finally, I compared the theoretical and simulated gain values. Problem 2: Relay Module Design ...

It works in two different modes, Normally Open (NO) and Normally Closed (NC). in our project, we will use it in Normally Open mode which means when the relay is switched off the circuit will be broken ...