Skip to main content

Python Library & Command Line Tool to Transmit RF Signals via C1101 Transceivers

Project description

python-cc1101

Code style: black CI Pipeline Status Coverage Status Last Release Compatible Python Versions DOI

Python Library & Command Line Tool to Transmit RF Signals via CC1101 Transceivers

Setup

$ pip3 install --user --upgrade cc1101

On Raspbian / Raspberry Pi OS, dependencies can optionally be installed via:

$ sudo apt-get install --no-install-recommends python3-spidev

Wiring Raspberry Pi

Connect the following pins directly:

CC1101 Raspberry Pi
VDD 3.3V (Pin 1 or 17)
SI MOSI (Pin 19)
SO MISO (Pin 21)
CSn CE0 (Pin 24)
SCLK SCLK (Pin 23)
GDO2* Any GPIO pin, commonly GPIO25 (Pin 22) [1,2,3]
GDO0* Any GPIO pin, GPIO24 (Pin 18) recommended
GND Ground

No resistors required. Connection of pins marked with * is optional. GDO2 stays "high until power and crystal have stabilized" (see CHIP_RDYn in docs). GDO0 is used by .asynchronous_transmission() for data input.

If some of these pins are already in use, select a different SPI bus or chip select: https://www.raspberrypi.org/documentation/hardware/raspberrypi/spi/README.md (permalink)

Raspberry Pi GPIO docs: https://www.raspberrypi.org/documentation/usage/gpio/

Usage

Library

See examples.

import cc1101

with cc1101.CC1101() as transceiver:
    transceiver.set_base_frequency_hertz(433.92e6)
    print(transceiver)
    transceiver.transmit(b"\x01\xff\x00 message")

In case CC1101 is connected to a different SPI bus or chip select line than /dev/spidev0.0, use CC1101(spi_bus=?, spi_chip_select=?).

Command Line

$ printf '\x01\x02\x03' | cc1101-transmit -f 433920000 -r 1000

See cc1101-transmit --help.

Troubleshooting

In case a PermissionError gets raised, check the permissions of /dev/spidev*. You'll probably need sudo usermod -a -G spi $USER, followed by a re-login.

Consult CC1101's offical docs for an in-depth explanation of all options: https://www.ti.com/lit/ds/symlink/cc1101.pdf

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for cc1101, version 2.7.2
Filename, size File type Python version Upload date Hashes
Filename, size cc1101-2.7.2-py3-none-any.whl (30.2 kB) File type Wheel Python version py3 Upload date Hashes View
Filename, size cc1101-2.7.2.tar.gz (57.6 kB) File type Source Python version None Upload date Hashes View

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring DigiCert DigiCert EV certificate Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page