adafruit-circuitpython-ble-radio

Introduction

This library provides simple byte and string based inter-device communication via BLE.

It works like a walkie-talkie: configure your device to use a certain channel (numbered 0-255, default being 42) and it will broadcast on that channel and receive any messages from other devices using that channel.

Dependencies

This library depends on:

Adafruit CircuitPython

Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.

Usage Example

All the functionality is exposed via the very simple Radio class:

from adafruit_ble_radio import Radio


# A radio instance listens/broadcasts on a numbered channel.
r = Radio(channel=7)

# Update radio instance settings.
r.configure(channel=9)

# Broadcast a simple string message.
r.send("Hello")

# Broadcast raw bytes.
r.send_bytes(b"Hello")

# A loop to listen for incoming string based messages...
while True:
    msg = r.receive()
    if msg:
        print(msg)

# Alternatively, to get the raw bytes and other details...
while True:
    msg = r.receive_full()
    if msg:
        msg_bytes = msg[0]
        msg_strength = msg[1]
        msg_time = msg[2]
        print("Recieved {} (strength {}, at time {})".format(
              msg_bytes,
              msg_strength,
              msg_time))

Unit Tests

To run the test suite you should have pytest and pytest-coverage installed (pip install pytest pytest-coverage).

Run the unit tests with the following command:

$ pytest --cov-report term-missing --cov=adafruit_ble_radio tests/

Documentation

API documentation for this library can be found on Read the Docs.

For information on building library documentation, please check out this guide.

Contributing

Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.

Release files for adafruit-circuitpython-ble-radio 0.5.17

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for adafruit-circuitpython-ble-radio 0.5.17
File	Size	Uploaded
adafruit_circuitpython_ble_radio-0.5.17.tar.gz	26.9 kB	Apr 23, 2026	Details

Built distribution (wheel)

Table of built distributions (wheels) for adafruit-circuitpython-ble-radio 0.5.17
File	Interpreter	ABI	Platform	Reset
adafruit_circuitpython_ble_radio-0.5.17-py3-none-any.whl 6.6 kB Apr 23, 2026	Python 3	none	any	Details

Total release size: 33.5 kB

Release files / adafruit_circuitpython_ble_radio-0.5.17.tar.gz

Download URL	adafruit_circuitpython_ble_radio-0.5.17.tar.gz
Size	26.9 kB
Tags	Source
SHA-256 checksum How to use checksums	`219864579fc38ef21dff51488309ccdf0db7875e2b5fac6795c2c0ce18b4c080`
BLAKE2b-256 checksum How to use checksums	`d79a0f00b717d950272bb45425e256a2516aca3a5b88e4f8ec9e6e7614565fb5`
Upload date	Apr 23, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/6.2.0 CPython/3.11.15`

Release files / adafruit_circuitpython_ble_radio-0.5.17-py3-none-any.whl

Download URL	adafruit_circuitpython_ble_radio-0.5.17-py3-none-any.whl
Size	6.6 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`a3cc207330c9273e8abb0ed09a6a95a887ce6d3b62a393e29e6e21ffcd21b50b`
BLAKE2b-256 checksum How to use checksums	`0d2bb56717ee926eb7cd5254466724ee4f7e6d33d85487af305721dfb3f3f831`
Upload date	Apr 23, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/6.2.0 CPython/3.11.15`