Raspberry Pi or other embedded systems, you can use SPI, GPIO, and specific RF libraries. Below is an example of how to use the NRF24L01 module with Python on a Raspberry Pi.
Application: Wireless Communication using NRF24L01 and Raspberry Pi
Goal:
- Send and receive data between two Raspberry Pi devices (or between a Raspberry Pi and an Arduino) using NRF24L01.
- The sender will transmit sensor data (e.g., temperature), and the receiver will print it.
Install Required Libraries
Before running the code, install the required Python libraries:
https://gist.github.com/viadean/2832ee6a561e6c927d9bb500f785d191
Wiring Diagram (Raspberry Pi to NRF24L01)
| NRF24L01 Pin |
Raspberry Pi Pin |
| GND |
GND |
| VCC |
3.3V |
| CE |
GPIO 22 |
| CSN |
GPIO 8 (CE0) |
| SCK |
GPIO 11 (SCK) |
| MOSI |
GPIO 10 (MOSI) |
| MISO |
GPIO 9 (MISO) |
| IRQ |
Not Connected |
Python Code for Transmitter (Sender)
https://gist.github.com/viadean/b9895a1fbb6f1761b6529f14853c48fb
Python Code for Receiver
https://gist.github.com/viadean/f66290132b78d11091c737849fa45f87
How This Works
- The transmitter sends a message "Hello RF!" every 2 seconds.
- The receiver continuously listens for messages and prints them when received.
- Works on Raspberry Pi SPI interface using the NRF24L01 RF module.