How to make a radio receiver with recording function on Arduino

19 July 2024 4 minutes Author: Cyber Witcher

We describe how to create a universal radio receiver with a recording function based on an Arduino controller. The article explains in detail what components are needed for the project, how to connect the radio receiver and radio transmitter modules, and how to program the Arduino to receive and play radio signals.

Principle of operation

Our scheme is connected and controlled from a laptop. We sit and wait in listening mode until someone presses the remote control (opens our slagboom, for example) and we receive a code that is memorized and can be played.

Required Components

  1. Arduino (eg Arduino uno)

This is our brain. Without it, we cannot transmit and read the signals we transmit/receive. For practicality, we can take the arduino uno controller and plug the wires into it, thereby bypassing the breadboard. But you can also take an arduino nano, but necessarily with soldered legs.

  1. Radio receiver and radio transmitter modules

There are different modules, but I advise you to take the 433MHz frequency because it is more common than 315MHz. Example.

Also, after purchase, you need to solder the antenna to the receiver and transmitter. Video instruction.

  1. Breadboard and connecting wires

It will be more convenient to connect parts on a breadboard, and connecting wires can be connected without soldering.

  1. Laptop for Arduino programming and use

To program the controller, we need to download the arduino IDE environment, as well as the driver for your controller.

Connecting components

To connect parts to the breadboard, it is recommended to watch a video that explains how to use it.

  1. Connect the radio module to the Arduino:

  • – Receiver VCC to 5V on Arduino

  • – Receiver GND to Arduino GND

  • – Data of the receiver to a digital pin (for example, D2) on the Arduino

  1. Connect the radio transmitter module to the Arduino:

  • – VCC transmitter to 5V on Arduino

  • – GND of transmitter to GND on Arduino

  • – Data of the transmitter to a digital pin (for example, D3) on the Arduino

Note – vcc is our + and gnd is – also the data transmitter is the pin with which we will communicate

Arduino programming

For the first time, we go in and simply connect the controller and be sure to remove it from the breadboard so that the voltage does not go where it is not needed.

I choose our controller in the list. We also need to download a library for communicating with radio components.

https://pastebin.com/Sina4qkD – project code on the example of 433MHz frequency. Codes are not stored when the power is turned off. Use with a laptop.

The code watches the 433MHz radio band in real-time and adds the codes to the array and wrote the number in the serial under which the code is located, then we will reproduce it. Also, don’t forget to convert your Serial to Arduino IDE to 9600 because the coding will fly.

Conclusion

We now have a powerful device for copying and reproducing radio code. Before creating, I advise you to look at the basics of Arduino, because it is very easy to burn everything.

Disclaimer. This article is created for informational purposes only. All advice and instructions are provided for educational purposes and we are not responsible for any possible consequences related to the implementation of this project. Always use safety precautions when working with electronic components.

If you have any problems or problems, you can contact us via: [email protected].

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