Description
What it is
The IR LED Module 3W 850 is an electronic component that emits infrared light at 850nm with a power of 3W. It includes a potentiometer adjustable resistor to optimize the emitted light intensity.
Features
- Power: 3W
- Wavelength: 850nm
- SKU: ARD007856
- Adjustable resistor
What it is for
This module is ideal for night vision or security systems that require invisible light to the human eye but detectable by infrared-sensitive devices. It can be used with Raspberry Pi to create simple night security systems.
Tutorial: How to use IR LED Module 850nm 3W
The IR LED Module 850nm 3W is ideal for night vision or security systems that require invisible light to the human eye but detectable by infrared-sensitive devices. This component is perfect for beginner and intermediate makers.
What you need
- IR LED Module 850nm 3W
- Raspberry Pi or compatible microcontroller
- USB connection (if necessary)
- External power supply
Steps
- Connect the IR module to a stable power source between 12V and 24V.
- Adjust the resistor on the module to achieve the desired intensity of the IR LED.
- Connect the module pins to the microcontroller or Raspberry Pi to control the operation of the IR LED via software or script.
- Verify that the IR LED is on and properly adjusted using an infrared-sensitive tool such as a night vision camera.
- Test the illumination range of the IR module to ensure it fully covers the desired field of view.
- If necessary, add an automatic lighting control system based on an ambient light sensor.
Example code
# Per Raspberry Pi
import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.OUT) # Imposta il pin 18 come uscita per controllare l'IR LED
Mini project
Create a simple night security system using this IR LED module and a Raspberry Pi camera. The project should take about 30 minutes.
Common mistakes
- Use an insufficient or too high voltage power supply.
- Fail to properly adjust the resistor for the IR LED intensity.
- Connect the IR module to a microcontroller without first testing it with a stable power supply.
- Omit the automatic lighting control based on ambient light sensor.
Recommended accessories
- Raspberry Pi Camera Module
- Ambient Light Sensor
- USB Cable for Raspberry Pi
- External Power Supply 12-24V
Frequently asked questions
How can I control the IR LED module?
You can use a microcontroller like Arduino or Raspberry Pi to regulate the intensity and operation of the IR LED.
What are the dimensions of the 850nm 1W IR LED module?
Check the datasheet.








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