How to Use LED Sequin - Royal Blue: Examples, Pinouts, and Specs

The LED Sequin - Royal Blue (Manufacturer Part ID: 1757) by Adafruit is a compact, decorative light-emitting diode (LED) designed for creative projects. Its vibrant royal blue color makes it ideal for adding illumination and sparkle to crafts, wearable electronics, and fashion designs. The LED Sequin is pre-mounted on a small PCB, making it easy to integrate into circuits without requiring additional soldering or resistors.

• Wearable electronics and e-textiles
• Decorative lighting for crafts and DIY projects
• Artistic installations and displays
• Prototyping and educational projects

The following table outlines the key technical details of the LED Sequin - Royal Blue:

The LED Sequin has two solder pads for easy connection. The pin configuration is as follows:

1. Power Requirements: The LED Sequin operates on a voltage range of 3V to 6V. It includes an onboard resistor, so no external resistor is needed.
2. Connections:
   • Solder wires to the + and - pads on the PCB.
   • Connect the + pad to the positive voltage supply and the - pad to ground.
3. Mounting: Use the mounting holes to secure the LED Sequin to your project using screws, thread, or adhesive.

The LED Sequin can be easily controlled using an Arduino UNO. Below is an example of how to blink the LED Sequin using digital pin 9.

• Connect the + pad of the LED Sequin to Arduino pin 9.
• Connect the - pad of the LED Sequin to the Arduino GND pin.

// Example code to blink the LED Sequin - Royal Blue
// Connect the + pad to pin 9 and the - pad to GND

const int ledPin = 9; // Pin connected to the LED Sequin

void setup() {
  pinMode(ledPin, OUTPUT); // Set pin 9 as an output
}

void loop() {
  digitalWrite(ledPin, HIGH); // Turn the LED on
  delay(500);                // Wait for 500 milliseconds
  digitalWrite(ledPin, LOW);  // Turn the LED off
  delay(500);                // Wait for 500 milliseconds
}

• Voltage Range: Do not exceed the 6V maximum operating voltage to avoid damaging the LED.
• Current Draw: The LED Sequin draws approximately 5mA, which is safe for most microcontrollers.
• Polarity: Ensure correct polarity when connecting the LED Sequin. Reversing the connections may damage the component.

1. LED Does Not Light Up:

   • Check the connections to ensure proper polarity (+ to positive voltage, - to ground).
   • Verify that the power supply voltage is within the 3V to 6V range.
   • Inspect solder joints for any loose or cold connections.

2. LED Flickers or Is Dim:

   • Ensure the power supply can provide sufficient current (at least 5mA per LED Sequin).
   • Check for loose connections or damaged wires.

3. LED Overheats:

   • Verify that the voltage does not exceed 6V.
   • Avoid prolonged operation at the upper voltage limit.

Q: Can I connect multiple LED Sequins in parallel?
A: Yes, you can connect multiple LED Sequins in parallel. Ensure that the power supply can handle the total current draw (approximately 5mA per LED).

Q: Do I need an external resistor?
A: No, the LED Sequin has a built-in resistor, so no additional resistor is required.

Q: Can I use the LED Sequin with a 9V battery?
A: No, the maximum operating voltage is 6V. Using a 9V battery may damage the LED.

Q: Is the LED Sequin waterproof?
A: No, the LED Sequin is not waterproof. If you need to use it in a wet environment, consider applying a waterproof coating or enclosing it in a protective case.

By following this documentation, you can effectively integrate the LED Sequin - Royal Blue into your projects and troubleshoot any issues that arise.