Description
What it is
The DC12V 433MHz 2 Channel Learning Code Wireless Remote Receiver Kit with Transmitter is a set consisting of a wireless receiver and transmitter that allow the remote control of two electrical devices via 433MHz radio signals.
Features
- Power Supply: 12V DC
- Frequency: 433MHz
- Channels: 2
- Learning Code
- Transmitter included
What it is for
This kit is ideal for creating home automation systems, such as the remote control of lights, motors or other electrical devices. It can be used with Arduino or other compatible microcontrollers to integrate wireless control into your electronic projects.
Tutorial: How to use 433MHz 2 Channel Relay Receiver Kit
This 433MHz relay receiver is ideal for controlling electrical devices from a distance. It’s perfect for home automation projects or for hobbyists who want to control lights or motors without wires.
What you need
- 433MHz Relay Receiver
- 433MHz Transmitter
- Arduino Uno or compatible
- Head connections
- Relay
- 12V Power Supply
Steps
- Connect the relay receiver to the Arduino input pins following the datasheet.
- Connect the relay to the relay receiver.
- Connect the 12V power supply to the relay.
- Program the Arduino with the provided sketch.
- Connect the 433MHz transmitter to the power source.
- Program the transmitter with the provided sketch.
- Test the system by sending commands from the transmitter.
- Check that the relay activates correctly.
Example code
/*
* Sketch di esempio per il ricevitore relè 433MHz
* Verifica sul datasheet per i pin corretti
*/
void setup() {
// Inizializza i pin di input
}
void loop() {
// Leggi i dati dal ricevitore
// Attiva o disattiva il relè in base ai comandi ricevuti
}
Mini project
Create a remote light control system. Connect the relay receiver to a relay that controls a light and use the transmitter to send commands.
Common mistakes
- Do not properly verify the connection pins.
- Do not properly power the relay.
- Do not test the transmitter and receiver separately before connecting them.
- Do not update the sketch for the specific transmitter commands.
Recommended accessories
- 5V relay
- 433MHz transmitter
- Arduino Uno
- Head connections
Frequently asked questions
The receiver does not respond to the transmitter commands.
Check the correct pin configuration and receiver power supply.
What are the transmission distances of the system?
Check the transmitter datasheet for transmission distances.
Can it be used with other 433MHz devices?
Yes, but it may be necessary to update the sketch to handle specific codes.





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