Single Channel Relay Module Circuit DIY

🔴 Key Features of Relay Module Project

• Operating Voltage: 12V, making it suitable for a wide range of applications.

• Power Indicator: A vibrant red LED ensures you know when the module is powered up.

• Relay Status Indicator: Stay informed with a green LED indicating the current relay status.

• User-Friendly Interface: Designed with human nature in mind, all interfaces are easily accessible through direct connection terminal leads, providing ultimate convenience.

💡 Why You Need This:

Whether you're a seasoned electronics hobbyist or just starting with DIY projects, this module is a game-changer. Automate your home, create custom lighting effects, or even build a smart irrigation system – the possibilities are endless! 

🎥 What You'll Learn:

In this video, we'll walk you through the module's features, demonstrate its applications, and guide you on how to integrate it into your projects seamlessly. From basic setups to advanced applications, we've got you covered. 

Step-by-Step Guide: DIY 1 Channel Relay Module Assembly

Before you start, ensure you have all the necessary components and tools ready for assembly.

Components:

• Veroboard

• 1 Channel 12V Relay

• NPN Transistor (e.g., 2N2222 , C1383 or any general purpose transistor.)

• Diode (1N4001 or similar)

• Resistors (R1=1K, R2= 10K, R3 = 470 Ohm,  R4 = 470 Ohm)

• LED (Red and Green)

• Jumper Wires

• Terminal Leads

• 12V Power Supply

• Arduino Nano (Optional)

Assembly Steps of Single Channel Relay Module:

1. Identify Components Placement:

• Refer to the diagram displayed on the screen to identify the specific placement of each component on the Veroboard.

2. Place the Relay:

• Position the 1 Channel Relay on the Veroboard, ensuring the pins align with the designated holes.

3. Install the NPN Transistor:

• Place the NPN Transistor (e.g., 2N2222) near the relay, connecting its collector, emitter, and base as per the diagram.

4. Connect the Diode:

• Integrate the diode (1N4001 or similar) in a way that it protects against back EMF. Connect it across the relay coil with the cathode on the positive side.

5. Add Resistors:

• Install the necessary resistors according to the diagram. These resistors may be used for current limiting and biasing, depending on the relay module's specifications.

6. Attach LEDs:

• Connect the Red and Green LEDs with the appropriate resistors to indicate power and relay status. Ensure correct polarity for the LEDs.

7. Establish Power Connections:

• Connect the power supply to the Veroboard, making sure the voltage matches the relay module's requirements.

8. Interface with Arduino Nano (Optional):

• If using an Arduino Nano, establish connections between the relay module and the Arduino. Typically, digital pins control the relay, and power and ground connections are essential.

9. Verify Connections:

• Double-check all connections to ensure there are no short circuits or misplaced components.

10. Test the Circuit:

• Apply power to the circuit and verify that the LEDs light up accordingly. If using an Arduino, upload a simple program to control the relay and observe its behavior.

11. Secure Components:

• Once verified, secure the components on the Veroboard using solder and ensure a stable connection.

12. Final Checks:

• Perform a final inspection to confirm all components are securely attached, and there are no loose connections.

Congratulations! You have successfully assembled your DIY 1 Channel Relay Module. This versatile module is now ready to be integrated into your electronic projects for efficient control of high-power devices.