4-Channel 12V High Side Relay Shield with LED

Description

What it is

The 4 Channel 12V High Level Relay Shield with LED is a device for Arduino that allows controlling 12V electrical devices. This shield integrates four relays, each with an indicative LED.

Features

• 4 relay channels
• Operating voltage: 12V
• High level control
• LED for each relay

What it is for

This shield is ideal for projects that require the activation/deactivation of 12V electrical devices. You can use it to control lights, motors or other electrical loads via Arduino. It is compatible with most Arduino platforms.

Tutorial: How to use 4 Channel 12V High Level Relay Shield with LED

This shield allows controlling 12V electrical devices using an Arduino port. Useful for projects that require turning on/off electrical devices such as lights, electric motors.

What you need

• Arduino
• 12V power supply cable
• 4 12V electrical devices to control
• Multimeter

Steps

1. 1. Mount the shield on the Arduino.
2. 2. Connect the GND of the shield to GND of Arduino.
3. 3. Connect VCC of the shield to 12V power supply.
4. 4. Connect the relays to GND and VCC of the devices.
5. 5. Connect the relay pins to digital pins of the Arduino.
6. 6. Load the source code.
7. 7. Check the current with a multimeter.
8. 8. Test the relays.

Mini project

Build a 12V controllable lighting system with Arduino. Connect 4 12V lamps to the relays and control their activation/deactivation through the sketch.

Common mistakes

• Do not check the power supply voltage.
• Connect the relays to analog pins.
• Omit the current check.
• Do not test the relays before use.

Recommended accessories

• 12V lamps
• Connection cables
• Multimeter
• Electrical protection

Frequently asked questions

How can I protect the relays?
Use electrical protections and check the maximum current.

Can I use this shield with voltages different from 12V?
Check the datasheet for compatibility with different voltages.

Which Arduino pins can I use?
Use only digital pins.