5 Pieces F3 3mm IR 940nm Infrared Emitter Transmitter

Description

What it is

The F3 3mm IR 940nm 5-pack emitter transmitter infrared units are ideal for Arduino projects and remote control systems. These devices allow wireless communication in domestic or industrial settings.

Features

• Type: Infrared Emitter Transmitter F3 3mm IR 940nm
• Wavelength: 940nm
• Emission Cone Diameter: 3mm

What it is for

These infrared emitters are useful for projects requiring wireless data communication, such as home alarm systems or signal interception. They are compatible with Arduino and other microcontrollers.

Tutorial: How to Use F3 940nm Infrared Emitter

This long-range infrared emitter is ideal for projects requiring low-frequency wireless communication. It is particularly useful for beginners and makers who want to explore wireless data communication.

What you need

• Arduino Uno
• USB Power Supply
• USB A-MicroB Cable

Steps

1. Connect the infrared transmitter pin to the digital out pin of the Arduino, for example D3.
2. Check that the module’s power supply is between 2.7V and 5V.
3. Load the Arduino sketch to send data through the infrared channel.
4. Test the communication by connecting a compatible infrared receiver to receive the signals.
5. Check the datasheet for the module’s range and frequency specifications.

Example code

void setup() {
  pinMode(3, OUTPUT);
}

void loop() {
  digitalWrite(3, HIGH); // Invia impulsi
  delay(100);
  digitalWrite(3, LOW);
}

Mini project

Create a home alarm system that sends infrared signals when activated. Use the infrared receiver to intercept the signals and turn on a light bulb.

Common mistakes

• Incorrect pin connection
• Power supply not conforming to specifications
• Incorrect transmission frequency

Recommended accessories

• Infrared Receiver 940nm
• Arduino Uno R3
• 3D Print Case for Arduino
• PIR Motion Sensors

Frequently asked questions

What is the maximum range of the transmitter?
Check the datasheet to obtain the precise value.

Can I use this module with Raspberry Pi?
Yes, but make sure to adapt the pins and power supply.