How do I connect 5V relay module to Arduino?

How the 5V Relay Works

  1. NC: Normally closed 120-240V terminal.
  2. NO: Normally open 120-240V terminal.
  3. C: Common terminal.
  4. Ground: Connects to the ground pin on the Arduino.
  5. 5V Vcc: Connects the Arduino’s 5V pin.
  6. Signal: Carries the trigger signal from the Arduino that activates the relay.

Can Arduino drive 5V relay?

You can use a 5V relay to switch the 120-240V current and use the Arduino to control the relay. * A relay basically allows a relatively low voltage to easily control higher power circuits.

How do I use a relay module with Arduino?

The connections between the relay module and the Arduino are really simple:

  1. GND: goes to ground.
  2. IN1: controls the first relay (it will be connected to an Arduino digital pin)
  3. IN2: controls the second relay (it should be connected to an Arduino digital pin if you are using this second relay.
  4. VCC: goes to 5V.

What is 5V relay module?

2-Channel 5V Relay Module is a relay interface board, it can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM and so on. It uses a low level triggered control signal (3.3-5VDC) to control the relay. Triggering the relay operates the normally open or normally closed contacts.

How many relays can Arduino control?

Each IO Expander can control up to 16 daisy chained Relay Expanders for a total of 256 relays. Then connecting 255 IO Expanders together you can selectively control up to 65,280 relays.

How do I make a relay module?

So lets start making guys!

  1. Step 1: Collect the parts. Previous Next. Now we need to collect some parts that are needed to make the DIY relay module.
  2. Step 2: Testing on Breadboard. Previous Next.
  3. Step 3: DIY relay module on general purpose PCB (optional) Previous Next.
  4. Step 4: DIY relay module on custom PCB(optional)

What is the output of 5V relay?

This 5V relay module supports 10A maximum output current and maximum contact voltage of 250V AC and 30V DC.