Arduino Relay Driver Shield Circuit Diagram: In this 3-Channel Relay Driver Circuit, we have used an optocoupler to trigger the NPN transistor which further drives the relay. And optocoupler will be ...

Welcome to the Arduino Nano Circuit Diagram user manual, your one-stop resource for understanding and using your new product. Important Information Arduino Nano Circuit Diagram Regarding Connectivity ...

Circuit Diagram: Circuit diagram of this Bluetooth controlled Home Automation is simple and connections can be made easily.LCD, Bluetooth Module HC05 and L293D Driver IC are connected to Arduino.. Two ...

Have you ever needed to power a 12-volt relay in a circuit but only had 6 or 9 volts available? This simple circuit will solve that problem. It allows 12-volt relays to be operated from 6 or 9 volts, ...