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ACEBOTT OEM Red Light Dot Digital Signal/PWM Signal 650nm 5mW Electronic Component Laser Head Distance Sensor Module for Arduino
Product Description
Products Description
The laser module is composed of a 650nm red laser diode head, driving circuit and three male pins, whose role is to generate a red dot shaped laser beam.
Safety Warning: It should be noted that the laser has powerful energy and highly concentrated beam, laser beam will cause damage to the human eye, do not directly illuminate the laser eyes.
Application Reference: This module can be used in laser alarm, laser sight, smart home, etc.
Technical Specifications
| Operating voltage | 3.3V~5V |
| Light spot pattern | Red light dot |
| Wavelength of light source | 650nm |
| Power | 5mW |
| Output signal | Digital signal / PWM signal |
| Size | 3.16cm * 2.38cm |
Pinout & Controller Connection
| Laser Module | ESP32 Connection |
|---|---|
| VCC | 5V |
| GND | GND |
| Sign | Pin 32 |
| Note | Expansion board is attached to esp32 controller board |
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Frequently Asked Questions
1. What is the working voltage of this laser module?
The module operates within a voltage range of 3.3V to 5V, making it compatible with both standard 3.3V microcontrollers (such as ESP32) and 5V microcontrollers.
2. What pattern and wavelength does the laser beam emit?
It produces a red light dot pattern with a light source wavelength of 650nm and an output power of 5mW.
3. Can the laser module be controlled via PWM?
Yes, the module accepts both digital and PWM signals on the signal pin, enabling toggling or pulse-width modulated brightness control.
4. How is the laser module wired to an ESP32 board?
Connect the VCC pin to 5V, the GND pin to GND, and the Sign pin to Pin 32 of the ESP32 (with the expansion board attached).
5. What safety measures should be followed during operation?
Due to the concentrated energy of the laser beam, never look directly into the emitter or aim it toward eyes, people, or highly reflective surfaces to avoid eye damage.
6. What typical applications is this module designed for?
This module is suitable for laser tripwire alarms, laser sights, smart home automation projects, optical positioning, and DIY electronic prototyping.
