SRA-05VDC-CL 5 Pin Relay – Pack of 2

Description

What it is

The SRA-05VDC-CL 5-pin relay is an electronic component used to control electrical devices from a low-level circuit. It is ideal for Arduino projects that require the control of devices such as lights or motors.

Features

• 5 pin
• Check the datasheet

What it is for

The SRA-05VDC-CL relay is used to create systems that control electrical devices from Arduino. For example, it can be used to turn on a light when a motion detector is triggered.

Tutorial: How to Use SRA-05VDC-CL 5-Pin Relay

The SRA-05VDC-CL relay is an electronic component that allows controlling electrical devices from a low-level circuit. It is ideal for beginners who want to control devices such as lights or motors from Arduino.

What you need

• Arduino Uno
• USB cable
• Breadboard
• 1kΩ resistor
• LED
• 9V battery

Steps

1. Connect Arduino to the computer via USB
2. Connect the relay to the breadboard
3. Connect the resistor and the LED to the breadboard
4. Connect the circuit to the relay
5. Write and upload the Arduino sketch
6. Check that the LED turns on and off with the relay
7. Test the relay with a 9V power supply
8. Check the datasheet for additional information

Example code

void setup() {
  pinMode(2, OUTPUT);
}

void loop() {
  digitalWrite(2, HIGH);
  delay(1000);
  digitalWrite(2, LOW);
  delay(1000);
}

Mini project

Create a simple alarm system that turns on a light when a motion sensor is activated.

Common mistakes

• Connect the relay to the circuit before reading the datasheet
• Do not check the relay’s operation before connecting it to a device
• Do not use a protective resistor for the LED
• Connect the relay to the circuit without an isolation interface

Recommended accessories

• PIR motion sensor
• Arduino prototyping kit
• 12V power supply
• 12V relay

Frequently asked questions

Can the relay control devices at 220V?
No, the SRA-05VDC-CL relay is designed for low-level devices, check the datasheet for 220V devices.

How can I protect the Arduino?
Use an optocoupler or a MOSFET as an isolation interface.