Arduino 8 Relay Module Wiring

In this example we will connect the relay module with arduino in the normally open state.

Arduino 8 relay module wiring. This is a 5v 8 channel relay interface board be able to control various appliances and other equipment with large current. Since the arduino operates at 5v it can t control these higher voltage devices directly but you can use a 5v relay to switch the 120 240v current and use the arduino to control the relay. 3 3v 1 channel relay module. Learn how to use relay with arduino how relay works how to connect relay to arduino how to code for relay how to program arduino step by step.

The six pins on the left side of the relay module connect high voltage and the pins on the right side connect the component that requires low voltage the arduino pins. The connections for connecting the relay module with arduino are very simple. We also discuss the. This is a 8 channel low level trigger relay and it can be applied to arduino and raspberry pi.

To test wire it up i ran arduino 5v to vcc on the main block arduino earth to gnd on the outer smaller block digital pin 9 to a in1 also tried other in pins i set the arduino to pinmode thispin output. Arduino relay circuit and arduino relay code. So connect the 5v and the ground of the arduino with the 5v and the ground of the relay module. In this video we ll learn how to use a sainsmart 4 channel 5v relay module with an arduino.

This 8 channel relay module can adopt most common range of microcontrollers such as arduino raspberry pi avr pic arm with digital outputs to control larger loads devices like ac or dc motors electromagnets soleniod incandescent light bulbs actuators and any another devices that you want to drive with in the relay. Relays are suitable for driving high power electronic devices such as lights electric fans and air condition. A relay can be used to control high voltages with a low voltage by connecting it to an mcu. The arduino can be programmed to turn on the relay when a certain event occurs for example when the temperature of a thermistor gets higher than 30 c.

The detail instruction code wiring diagram video tutorial line by line code explanation are provided to help you quickly get started with arduino. The following figure shows the relay module pinout. Then connect the signal pin of the relay module with the pin 12 of the arduino. 5v 1 channel relay module.