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How to Use 5v Adapter Board: Examples, Pinouts, and Specs

Image of 5v Adapter Board
Cirkit Designer LogoDesign with 5v Adapter Board in Cirkit Designer

Introduction

The 5V Adapter Board (Manufacturer Part ID: 5v_Adapter_Board) is a compact circuit board designed to convert AC mains voltage into a stable 5V DC output. This component is widely used to power low-voltage electronic devices, including microcontrollers, sensors, and other peripherals. Its small form factor and reliable performance make it an essential component in prototyping, DIY electronics, and embedded systems.

Explore Projects Built with 5v Adapter Board

Use Cirkit Designer to design, explore, and prototype these projects online. Some projects support real-time simulation. Click "Open Project" to start designing instantly!
Battery-Powered USB Charger with LED Indicator and DC Motor
Image of Copy of Hand Crank mobile charger : A project utilizing 5v Adapter Board in a practical application
This circuit converts AC power to DC using a bridge rectifier and regulates the voltage to 5V with a 7805 voltage regulator. It powers a USB port and indicates power status with an LED, while also providing a charging interface through a multi-charging cable.
Cirkit Designer LogoOpen Project in Cirkit Designer
220V to 5V Power Supply with Transformer and Bridge Rectifier
Image of POWER SUPPLY MODULE: A project utilizing 5v Adapter Board in a practical application
This circuit converts 220V AC power to a 5V DC output. It uses a transformer to step down the voltage, a bridge rectifier to convert AC to DC, and a capacitor to smooth the output. The final 5V DC is available through a connector.
Cirkit Designer LogoOpen Project in Cirkit Designer
ESP32-Based Industrial Control System with RS485 Communication and I2C Interface
Image of DRIVER TESTER : A project utilizing 5v Adapter Board in a practical application
This circuit integrates a microcontroller with a display, digital potentiometer, IO expander, and opto-isolator board for signal interfacing and isolation. It includes a UART to RS485 converter for serial communication and a power converter to step down voltage for the system. The circuit is designed for control and communication in an isolated and protected environment.
Cirkit Designer LogoOpen Project in Cirkit Designer
Raspberry Pi 4B Powered Projector System with HDMI to VGA Conversion
Image of raspberry to projector: A project utilizing 5v Adapter Board in a practical application
This circuit connects a Raspberry Pi 4B to a projector via an HDMI to VGA converter, allowing the Raspberry Pi to output video and audio to the projector. The Raspberry Pi is powered by a 5V power adapter, which is connected to an AC wall plug point.
Cirkit Designer LogoOpen Project in Cirkit Designer

Explore Projects Built with 5v Adapter Board

Use Cirkit Designer to design, explore, and prototype these projects online. Some projects support real-time simulation. Click "Open Project" to start designing instantly!
Image of Copy of Hand Crank mobile charger : A project utilizing 5v Adapter Board in a practical application
Battery-Powered USB Charger with LED Indicator and DC Motor
This circuit converts AC power to DC using a bridge rectifier and regulates the voltage to 5V with a 7805 voltage regulator. It powers a USB port and indicates power status with an LED, while also providing a charging interface through a multi-charging cable.
Cirkit Designer LogoOpen Project in Cirkit Designer
Image of POWER SUPPLY MODULE: A project utilizing 5v Adapter Board in a practical application
220V to 5V Power Supply with Transformer and Bridge Rectifier
This circuit converts 220V AC power to a 5V DC output. It uses a transformer to step down the voltage, a bridge rectifier to convert AC to DC, and a capacitor to smooth the output. The final 5V DC is available through a connector.
Cirkit Designer LogoOpen Project in Cirkit Designer
Image of DRIVER TESTER : A project utilizing 5v Adapter Board in a practical application
ESP32-Based Industrial Control System with RS485 Communication and I2C Interface
This circuit integrates a microcontroller with a display, digital potentiometer, IO expander, and opto-isolator board for signal interfacing and isolation. It includes a UART to RS485 converter for serial communication and a power converter to step down voltage for the system. The circuit is designed for control and communication in an isolated and protected environment.
Cirkit Designer LogoOpen Project in Cirkit Designer
Image of raspberry to projector: A project utilizing 5v Adapter Board in a practical application
Raspberry Pi 4B Powered Projector System with HDMI to VGA Conversion
This circuit connects a Raspberry Pi 4B to a projector via an HDMI to VGA converter, allowing the Raspberry Pi to output video and audio to the projector. The Raspberry Pi is powered by a 5V power adapter, which is connected to an AC wall plug point.
Cirkit Designer LogoOpen Project in Cirkit Designer

Common Applications and Use Cases

  • Powering microcontrollers such as Arduino, Raspberry Pi, and ESP32.
  • Supplying 5V DC to sensors, relays, and other low-power devices.
  • Providing a stable power source for breadboard-based projects.
  • Used in IoT devices, home automation systems, and small robotics.

Technical Specifications

The following table outlines the key technical details of the 5V Adapter Board:

Parameter Value
Input Voltage 100-240V AC (50/60Hz)
Output Voltage 5V DC
Output Current Up to 1A
Power Rating 5W
Efficiency ≥ 75%
Dimensions Varies by manufacturer (e.g., 25mm x 20mm)
Operating Temperature -20°C to +60°C
Safety Features Over-voltage, over-current, and short-circuit protection

Pin Configuration and Descriptions

The 5V Adapter Board typically has the following pin configuration:

Pin Name Description
AC IN (L) Live wire input for AC mains voltage.
AC IN (N) Neutral wire input for AC mains voltage.
GND Ground connection for the DC output.
+5V Positive 5V DC output.

Note: Always verify the pin configuration on your specific board, as it may vary slightly depending on the manufacturer.

Usage Instructions

How to Use the 5V Adapter Board in a Circuit

  1. Connect the AC Input:

    • Identify the AC IN (L) and AC IN (N) pins on the board.
    • Connect the live and neutral wires from the AC mains supply to these pins. Ensure proper insulation and safety precautions when handling AC voltage.
  2. Connect the DC Output:

    • Use the +5V and GND pins to supply power to your circuit or device.
    • Verify the polarity of the connections to avoid damage to your components.
  3. Power On:

    • Once all connections are secure, plug in the AC mains supply. The board will convert the AC voltage to a stable 5V DC output.

Important Considerations and Best Practices

  • Safety First: Always handle the AC input connections with care. Ensure the board is properly insulated and mounted in a safe enclosure to prevent accidental contact with live wires.
  • Load Capacity: Do not exceed the maximum output current (1A) to avoid overheating or damaging the board.
  • Ventilation: Ensure adequate ventilation around the board to prevent overheating, especially during prolonged use.
  • Testing: Use a multimeter to verify the output voltage before connecting sensitive devices.

Example: Using the 5V Adapter Board with an Arduino UNO

The 5V Adapter Board can be used to power an Arduino UNO. Follow these steps:

  1. Connect the +5V pin of the adapter board to the 5V pin on the Arduino UNO.
  2. Connect the GND pin of the adapter board to the GND pin on the Arduino UNO.
  3. Plug in the AC mains supply to the adapter board.

Here is a simple Arduino sketch to blink an LED while powered by the 5V Adapter Board:

// This sketch blinks an LED connected to pin 13 of the Arduino UNO.
// Ensure the Arduino is powered by the 5V Adapter Board.

void setup() {
  pinMode(13, OUTPUT); // Set pin 13 as an output pin
}

void loop() {
  digitalWrite(13, HIGH); // Turn the LED on
  delay(1000);            // Wait for 1 second
  digitalWrite(13, LOW);  // Turn the LED off
  delay(1000);            // Wait for 1 second
}

Warning: Always double-check the connections before powering the circuit to avoid damage to the Arduino or other components.

Troubleshooting and FAQs

Common Issues and Solutions

Issue Possible Cause Solution
No output voltage Incorrect AC input connection Verify the AC IN (L) and AC IN (N) connections.
Output voltage is unstable Overloading the board Ensure the connected load does not exceed 1A.
Board overheats Insufficient ventilation or overloading Provide proper ventilation and reduce the load.
Device connected to the board is not working Incorrect polarity or loose connections Check the +5V and GND connections for proper polarity and secure wiring.

FAQs

  1. Can I use the 5V Adapter Board to power a Raspberry Pi?

    • Yes, but ensure the board can supply sufficient current (at least 1A) for your Raspberry Pi model.
  2. Is the board safe to use with AC mains voltage?

    • Yes, the board is designed for AC mains voltage. However, always follow safety precautions and use proper insulation.
  3. Can I use this board outdoors?

    • The board is not weatherproof. Use it indoors or in a properly enclosed and weatherproof housing.
  4. What happens if I exceed the maximum current rating?

    • Exceeding the current rating may trigger the board's over-current protection or cause it to overheat and fail.

By following this documentation, you can safely and effectively use the 5V Adapter Board in your electronic projects.