650nm 5mw 3V 6MM Copper Semiconductor Laser Diode

Description

What it is

The 650nm 5mW Laser is a copper semiconductor device that emits a bright red light beam. This type of laser is used in various projects and applications, from creating interactive devices to precise measurements.

Features

• Wavelength: 650nm
• Maximum Power: 5mW
• Supply Voltage: 3V
• Beam Diameter: 6mm

What it is for

The 650nm Laser is ideal for applications requiring a precise and focused light beam, such as interactive lighting projects or measurement systems. It can be used in combination with Arduino or ESP to create smart and interactive devices.

Tutorial: How to Use the 650nm Laser (Arduino Projects)

The 650nm laser is perfect for lighting projects, measurements, and interactive games. Ideal for beginners.

What you need

• Laser ARD00218
• Arduino Uno
• USB Connection
• Resistor (check datasheet)
• Connecting Wire

Steps

1. Connect the laser to the Arduino digital pin with the resistor.
2. Insert the Arduino code to turn the laser on and off.
3. Check that the laser turns on correctly.
4. Test the signal interruption to turn off the laser.
5. Configure a button to control the laser (optional).
6. Design a box or protection for the laser (suggested).

Example code

const int ledPin = 13; // collega il laser al pin digitale 13
void setup() {
  pinMode(ledPin, OUTPUT);
}
void loop() {
  digitalWrite(ledPin, HIGH); // accende il laser
  delay(500);
  digitalWrite(ledPin, LOW); // spegne il laser
  delay(500);
}

Mini project

Create an interactive light point projector: connect the laser to a servo to move the beam.

Common mistakes

• Do not verify the correct voltage.
• Using a resistance that is too low or too high.
• Connect directly to the pin without resistance.
• Lack of eye protection during testing.

Recommended accessories

• Variable resistors
• Servos
• Tactile buttons
• Eye protection

Frequently asked questions

How can I control the laser with a sensor?
Connect the sensor to the Arduino and modify the sketch to turn on the laser when the sensor detects something.

My laser does not turn on, what should I do?
Check the electrical connection and ensure that the supplied voltage is correct.