UV LED SMD Kit 395-400nm – 20 Pieces

Description

What it is

The UV 395-400nm SMD LED Kit contains 20 pieces of UV SMD LEDs suitable for 3D printing projects and research labs. These LEDs are ideal for applications requiring UV radiation with wavelengths between 395-400nm.

Features

• 20 pieces of UV SMD LEDs
• UV radiation wavelength 395-400nm
• Refined for 3D printing projects and research labs

What it is for

This kit can be used to create home security systems, disinfection, therapies, and material science applications. Check the datasheet for further technical information.

Tutorial: How to use UV 395-400nm SMD LED Kit

This UV SMD LED kit is perfect for projects requiring UV radiation with wavelengths of 395-400nm. Ideal for beginners and makers who want to explore applications such as security, disinfection, or material science.

What you need

• Arduino uno or compatible
• Perforated board
• Connection cable
• Resistor
• Soldering tool

Steps

1. Identify the LED polarity: the longer leg is the anode (+)
2. Place the resistor between the LED anode and your power source to limit the current
3. Solder the LED onto the perforated board using the soldering method
4. Connect the cathode (shorter leg) of the LED to GND of the Arduino
5. Connect the anode of the LED to a digital pin of the Arduino
6. Write a sketch to control the LED through the digital pin
7. Check that the LED turns on and off correctly following the sketch
8. Try to modify the sketch to vary the duration of the illumination

Example code

const int ledPin = 13;
void setup() {
  pinMode(ledPin, OUTPUT);
}
void loop() {
  digitalWrite(ledPin, HIGH);
  delay(1000);
  digitalWrite(ledPin, LOW);
  delay(1000);
}

Mini project

Create a home security system that uses the UV LED to illuminate a specific area and alerts via a sound signal if someone enters the area.

Common mistakes

• Do not check the LED polarity
• Do not use a resistor to limit the current
• Solder the LED without adequate support
• Do not test the LED before integrating it into the project

Recommended accessories

• Various resistors
• Perforated board
• Soldering kit
• Arduino uno or compatible

Frequently asked questions

How can I control multiple UV LEDs at the same time?
Use a multiplexer or a shift register to control multiple LEDs with few pins of the microcontroller.

What is the lifespan of the UV LED?
Check the product datasheet to obtain the specific lifespan.