How to Use LED Board: Examples, Pinouts, and Specs

The LED Board by Arron is a versatile and efficient lighting solution designed for a variety of applications. This electronic component is widely used for illumination, signaling, and decorative purposes. Its low power consumption and long lifespan make it a popular choice for projects ranging from simple DIY crafts to complex industrial systems.

• Indicator lights for electronic devices
• Backlighting for LCD or display panels
• Decorative lighting for events and venues
• Educational projects and hobbyist circuits
• Prototyping for product development

• Operating Voltage: Typically 2V to 3.6V per LED
• Forward Current: Recommended 20mA per LED
• Power Ratings: Varies with the number and type of LEDs used

Note: The pin configuration may vary depending on the specific LED board model. Refer to the manufacturer's datasheet for exact details.

1. Power Supply: Ensure that the power supply matches the voltage requirements of the LED board. Exceeding the voltage rating can damage the LEDs.
2. Current Limiting: Always use a current-limiting resistor in series with the LED to prevent excessive current flow.
3. Wiring: Connect the anode pin to the positive side of the power supply through a current-limiting resistor, and the cathode pin to the ground.

• Heat Dissipation: LEDs generate heat; ensure adequate cooling if the LED board is used at high brightness levels for extended periods.
• Dimming: Use a PWM (Pulse Width Modulation) signal to dim the LEDs if required.
• Handling: Avoid static discharge by grounding yourself before handling the LED board.

// Define the LED pin
const int ledPin = 13; // Most Arduino UNOs have an onboard LED on pin 13

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

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

Note: The above code is for an onboard LED. For an external LED board, replace ledPin with the appropriate pin connected to the anode of the LED board.

• LEDs not lighting up: Check if the power supply is correctly connected and within the specified voltage range. Ensure the current-limiting resistor is in place.
• LEDs too dim: Confirm that the current-limiting resistor value is not too high, which can limit the current flow and reduce brightness.
• LEDs burning out: Ensure that the voltage and current do not exceed the maximum ratings specified for the LED board.

• Double-check connections: Verify that all connections are secure and correctly oriented.
• Measure voltage and current: Use a multimeter to check that the voltage across and current through the LEDs are within specifications.
• Resistor calculations: Use Ohm's law (V = IR) to calculate the correct resistor value for the desired current.

Q: Can I power multiple LED boards in series? A: It's possible, but ensure that the power supply can handle the combined voltage requirements of all the LED boards.

Q: How do I change the color of the LEDs? A: The LED color is determined by the semiconductor material and cannot be changed. To use different colors, you need to use a different LED board with the desired color LEDs.

Q: Can I use a 9V battery to power the LED board? A: Yes, but you must use an appropriate current-limiting resistor to bring the voltage down to the LED's operating range and limit the current to the recommended level.

This documentation provides a comprehensive guide to using the Arron LED Board. For further assistance, consult the manufacturer's datasheet or contact technical support.