Vin pin of Arduino gives = 12v. So current need to turn on the relay = 12/400 Amps = 30 mA . If both relays are energized, current= 30*2=60 mA **Vin pin of Arduino can supply maximum current = 200mA.

Stepper motor is powered using a 12V power source, and the DRV8825 module is powered via Arduino. RST and SLEEP pin both connected to the 5V on the Arduino to keep the driver enabled. Potentiometer is ...

In this quick Arduino tutorial I will explain how you can control a relay using the Arduino Board, one 1K and one 10K resistors, 1 BC547 transistor, one 6V or 12V relay, one 1N4007 diode and a 12V fan ...

The controls from the Arduino Nano to Motor Driver is from D3-> IN1, D4->IN2, D5-> IN3 and D6 -> IN4. The outputs from the Motor Driver are OP1, OP2, OP3 and OP4. The code can be found in this repo.

Many tested and working projects are given in the book for real-time control of standard DC motors, stepper and servo motors, and mobile robots. Now available in the Elektor Store is a new book all ...

Furthermore, a device control system was developed using stepper motor, Arduino UNO board and electronic circuitry. A mobile phone application was developed using App Inventor to control the CPM ...