RadioLib

One radio library to rule them all!

Universal wireless communication library for embedded devices

See the Wiki for further information. See the GitHub Pages for detailed and up-to-date API reference.

RadioLib allows its users to integrate all sorts of different wireless communication modules, protocols and even digital modes into a single consistent system. Want to add a Bluetooth interface to your LoRa network? Sure thing! Do you just want to go really old-school and play around with radio teletype, slow-scan TV, or even Hellschreiber using nothing but a cheap radio module? Why not!

RadioLib natively supports Arduino, but can run in non-Arduino environments as well! See this Wiki page and examples/NonArduino.

RadioLib was originally created as a driver for RadioShield, but it can be used to control as many different wireless modules as you like - or at least as many as your microcontroller can handle!

Supported modules:

• CC1101 FSK radio module
• LLCC68 LoRa module
• nRF24L01 2.4 GHz module
• RF69 FSK/OOK radio module
• RFM2x series FSK modules (RFM22, RM23)
• RFM9x series LoRa modules (RFM95, RM96, RFM97, RFM98)
• Si443x series FSK modules (Si4430, Si4431, Si4432)
• STM32WL integrated microcontroller/LoRa module
• SX126x series LoRa modules (SX1261, SX1262, SX1268)
• SX127x series LoRa modules (SX1272, SX1273, SX1276, SX1277, SX1278, SX1279)
• SX128x series LoRa/GFSK/BLE/FLRC modules (SX1280, SX1281, SX1282)
• SX1231 FSK/OOK radio module

Supported protocols and digital modes:

• AX.25 using 2-FSK or AFSK for modules:
  SX127x, RFM9x, SX126x, RF69, SX1231, CC1101, RFM2x and Si443x
• RTTY using 2-FSK or AFSK for modules:
  SX127x, RFM9x, SX126x, RF69, SX1231, CC1101, nRF24L01, RFM2x, Si443x and SX128x
• Morse Code using 2-FSK or AFSK for modules:
  SX127x, RFM9x, SX126x, RF69, SX1231, CC1101, nRF24L01, RFM2x, Si443x and SX128x
• SSTV using 2-FSK or AFSK for modules:
  SX127x, RFM9x, SX126x, RF69, SX1231, CC1101, RFM2x and Si443x
• Hellschreiber using 2-FSK or AFSK for modules:
  SX127x, RFM9x, SX126x, RF69, SX1231, CC1101, nRF24L01, RFM2x, Si443x and SX128x
• APRS using AFSK for modules:
  SX127x, RFM9x, SX126x, RF69, SX1231, CC1101, nRF24L01, RFM2x, Si443x and SX128x
• POCSAG using 2-FSK for modules:
  SX127x, RFM9x, RF69, SX1231, CC1101, nRF24L01, RFM2x and Si443x
• LoRaWAN using LoRa for modules:
  SX127x, RFM9x, SX126x and SX128x

Supported Arduino platforms:

• Arduino

  • AVR - Arduino Uno, Mega, Leonardo, Pro Mini, Nano etc.
  • mbed - Arduino Nano 33 BLE and Arduino Portenta H7
  • megaAVR - Arduino Uno WiFi Rev.2 and Nano Every
  • SAM - Arduino Due
  • SAMD - Arduino Zero, MKR boards, M0 Pro etc.
  • Renesas - Arduino Uno R4

• Adafruit

  • SAMD - Adafruit Feather M0 and M4 boards (Feather, Metro, Gemma, Trinket etc.)
  • nRF52 - Adafruit Feather nRF528x, Bluefruit and CLUE

• Espressif

  • ESP32 - ESP32-based boards
  • ESP8266 - ESP8266-based boards

• Intel

  • Curie - Arduino 101

• SparkFun

  • Apollo3 - Sparkfun Artemis Redboard

• ST Microelectronics

  • STM32 (official core) - STM32 Nucleo, Discovery, Maple, BluePill, BlackPill etc.
  • STM32 (unofficial core) - STM32F1 and STM32F4-based boards

• MCUdude

  • MegaCoreX - megaAVR-0 series (ATmega4809, ATmega3209 etc.)
  • MegaCore - AVR (ATmega1281, ATmega640 etc.)

• Raspberry Pi

  • RP2040 (official core) - Raspberry Pi Pico and Arduino Nano RP2040 Connect
  • RP2040 (unofficial core) - Raspberry Pi Pico/RP2040-based boards
  • Raspberry Pi - Arduino framework for RaspberryPI

• Heltec

  • CubeCell - ASR650X series (CubeCell-Board, CubeCell-Capsule, CubeCell-Module etc.)

• PJRC

  • Teensy - Teensy 2.x, 3.x and 4.x boards

The list above is by no means exhaustive - RadioLib code is independent of the used platform! Compilation of all examples is tested for all platforms officially supported prior to releasing new version. In addition, RadioLib includes an internal hardware abstraction layer, which allows it to be easily ported even to non-Arduino environments.

Frequently Asked Questions

Where should I start?

First of all, take a look at the examples and the Wiki - especially the Basics page. There's a lot of useful information over there. If something isn't working as expected, try searching the issues.

Does RadioLib require Arduino?

While RadioLib was originally written with Arduino in mind, it has since evolved and contains its own lightweight hardware abstraction layer. Thanks to this layer, RadioLib can be used on non-Arduino frameworks as well. See this Wiki page for details.

Help, my module isn't working!

The fastest way to get help is by creating an issue using the appropriate template. It is also highly recommended to try running the examples first - their functionality is tested from time to time and they should work. Finally, RadioLib is still under development, which means that sometimes, backwards-incompatible changes might be introduced. Though these are kept at minimum, sometimes it is unavoidable. You can check the release changelog to find out if there's been such a major change recently.

RadioLib doesn't support my module! What should I do?

Start by creating new issue (if it doesn't exist yet). If you have some experience with microcontrollers and C/C++ in general, you can try to add the support yourself! Use the template files in /extras/ folder to get started. This is by far the fastest way to implement new modules into RadioLib, since I can't be working on everything all the time. If you don't trust your programming skills enough to have a go at it yourself, don't worry. I will try to implement all requested modules, but it will take me a while.