How to Use Mini AC-DC 110V-230V to 5V 2000mA Module: Examples, Pinouts, and Specs

The Mini AC-DC 110V-230V to 5V 2000mA Module is a compact and efficient power supply module designed to convert high AC voltage (110V-230V) into a stable 5V DC output. With a maximum current output of 2000mA, this module is ideal for powering low-voltage electronic devices, microcontrollers, IoT devices, and other small circuits. Its small size and high efficiency make it a popular choice for embedded systems and DIY electronics projects.

• Powering microcontrollers such as Arduino, ESP8266, or Raspberry Pi Pico.
• Supplying power to IoT devices and sensors.
• Replacing bulky power adapters in compact electronic designs.
• Providing a stable 5V DC output for LED strips, relays, or small motors.
• Used in home automation systems and smart devices.

1. Safety First: Ensure the module is disconnected from any power source before wiring. Handle the module carefully, as it deals with high AC voltages.
2. Connect the AC Input:
   • Connect the AC IN (L) pin to the live wire of the AC power source.
   • Connect the AC IN (N) pin to the neutral wire of the AC power source.
   • Use proper insulation and secure connections to avoid electrical hazards.
3. Connect the DC Output:
   • Connect the DC OUT (+) pin to the positive terminal of your load or circuit.
   • Connect the DC OUT (-) pin to the ground terminal of your load or circuit.
4. Power On: Once all connections are secure, supply AC power to the module. The module will convert the AC input to a stable 5V DC output.

• Isolation: Ensure proper isolation between the AC and DC sides to prevent electrical shocks.
• Heat Dissipation: If the module is used near its maximum current rating (2A), ensure adequate ventilation or heat dissipation to prevent overheating.
• Load Compatibility: Verify that the connected load does not exceed the module's maximum output current (2000mA).
• Testing: Use a multimeter to confirm the output voltage (5V DC) before connecting sensitive devices.
• Mounting: Secure the module in a non-conductive enclosure to protect it from dust, moisture, and accidental contact.

The Mini AC-DC module can be used to power an Arduino UNO directly via its 5V pin. Below is an example of how to connect the module and a simple Arduino sketch to blink an LED.

1. Connect the DC OUT (+) pin of the module to the 5V pin of the Arduino UNO.
2. Connect the DC OUT (-) pin of the module to the GND pin of the Arduino UNO.
3. Connect an LED to pin 13 of the Arduino UNO with a 220-ohm resistor in series.

// Simple LED Blink Example
// This code blinks an LED connected to pin 13 of the Arduino UNO.

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
}

1. Can this module power a Raspberry Pi?

   • No, the Raspberry Pi typically requires more than 2A of current, especially with peripherals connected. Use a higher-rated power supply for Raspberry Pi devices.

2. Is the module safe to use in open circuits?

   • No, the module should be enclosed in a non-conductive case to prevent accidental contact with high-voltage components.

3. Can I use this module outdoors?

   • The module is not weatherproof. Use it only in dry, indoor environments or within a weatherproof enclosure.

4. What happens if the input voltage exceeds 230V AC?

   • The module may fail or become damaged. Ensure the input voltage stays within the specified range (110V-230V AC).

By following these guidelines and precautions, you can safely and effectively use the Mini AC-DC 110V-230V to 5V 2000mA Module in your projects.