/rpi-rf

Sending and receiving 433MHz signals with cheap GPIO RF modules on a Raspberry Pi

Primary LanguagePythonBSD 3-Clause "New" or "Revised" LicenseBSD-3-Clause

rpi-rf

Introduction

Python module for sending and receiving 433/315MHz LPD/SRD signals with generic low-cost GPIO RF modules on a Raspberry Pi.

Protocol and base logic ported ported from rc-switch.

Supported hardware

Most generic 433/315MHz capable modules (cost: ~2€) connected via GPIO to a Raspberry Pi.

Compatibility

Generic RF outlets and most 433/315MHz switches (cost: ~15€/3pcs).

Chipsets:

  • SC5262 / SC5272
  • HX2262 / HX2272
  • PT2262 / PT2272
  • EV1527 / RT1527 / FP1527 / HS1527

For a full list of compatible devices and chipsets see the rc-switch Wiki

Dependencies

RPi.GPIO

Installation

On your Raspberry Pi, install the rpi_rf module via pip.

Python 3:

# apt-get install python3-pip
# pip3 install rpi-rf

Wiring diagram (example)

Raspberry Pi 1/2(B+):

RPI GPIO HEADER
       ____|__
      | | |
    01| . x |02
      | . x__|________ RX
      | . x__ ________
      | . . | | | | |

TX | ____ | VCC |

_______ | | __ | | |

      | | | | | x________
   GND__| | | . . | | | |
      | | | | . . | |
   VCC | | . . | | | |
      | | | . . | GND |
  DATA | . . |
| . . |
 . . |
 . . |
 . . |
 . . |
 . . |
 . . |

39| . . _______|

TX:

GND > PIN 09 (GND) VCC > PIN 02 (5V)

DATA > PIN 11 (GPIO17)

RX:

VCC > PIN 04 (5V)

DATA > PIN 13 (GPIO27)

GND > PIN 06 (GND)

Usage

See scripts (rpi-rf_send, rpi-rf_receive) which are also shipped as cmdline tools.

Open Source