405nm 100mW Blue-Violet Laser Module for Positioning and Indicator

Description

What it is

The 405nm 100mW Blue-Violet Laser Module is an electronic component designed for positioning and visual indication applications. This module emits a high-precision blue-violet laser beam with a power output of 100mW, making it suitable for both hobby projects and professional applications.

Features

• Wavelength: 405nm
• Power Output: 100mW
• Color: Blue-Violet
• Used for positioning and visual indication applications

What it is for

The 405nm Laser Module can be used to create visual alarm systems, to indicate precise positions in industrial environments, or for robotics applications where accurate visibility is required. It is compatible with various microcontrollers such as Arduino and ESP32, allowing makers to easily integrate it into electronic projects.

Tutorial: How to Use 405nm 100mW Blue-Violet Laser Module

The 405nm 100mW laser module is ideal for positioning and visual indicator projects. It’s perfect for beginner and intermediate makers who want to explore precision electronics.

What you need

• Arduino Uno
• USB Connection
• Control Pin
• 220 Ohm Resistor

Steps

1. Connect the laser module to the Arduino control pin via a 220 Ohm resistor.
2. Upload the example sketch to the Arduino.
3. Test the laser module by turning it on and off with the control button or through code.
4. Check the laser wavelength on the module print.
5. Verify the laser power on the datasheet.
6. Install the laser module in a protective structure.
7. Test the module in ambient light conditions to evaluate visibility.
8. Modify the sketch to control the laser via a sensor or another input device.

Example code

void setup() {
  pinMode(13, OUTPUT);
}

void loop() {
  digitalWrite(13, HIGH);
  delay(1000);
  digitalWrite(13, LOW);
  delay(1000);
}

Mini project

Create a visual alarm system that turns on the laser module when a motion detector is triggered.

Common mistakes

• Use an inadequate resistor that can damage the module.
• Do not test the laser under ambient light conditions.
• Do not verify the power and wavelength of the laser.
• Do not protect the module in a secure container.

Recommended accessories

• Arduino Uno
• PIR Motion Sensor
• Variable Resistors
• Laser Protective Housing

Frequently asked questions

Can the laser module be used outdoors?
Yes, but make sure the module is protected from rain and dust.

What is the battery life?
Check the datasheet.

Can it be used for precise measurements?
Yes, but use a laser measurement system designed for precision.