renard-phy-s2lp is an open source physical layer implementation of the Sigfox protocol's uplink and downlink for STMicroelectronics' S2-LP ultra-low power transceiver chip. It uses librenard internally for encoding and decoding of Sigfox frames. renard-phy-s2lp only supports regulatory zone "RC1" (Europe / Overseas France / Middle East and Africa).
It does not directly interface with the S2-LP, but through a Hardware Abstraction Layer (HAL). Moreover, it only depends on functionality provided by the C standard library. This makes it possible to port this driver to various different Microcontroller platforms and processor architectures.
Currently, the following hardware abstraction layers (with their respective demo applications) exist:
| Platform | HAL | Demo Application |
|---|---|---|
| Espressif ESP32 | renard-phy-s2lp-hal-esp32 | renard-phy-s2lp-demo-esp32 |
| STMicroelectronics STM32L0 | renard-phy-s2lp-hal-stm32 | renard-phy-s2lp-demo-stm32 |
See the applications listed in the table above for sample code that demonstrates how to integrate renard-phy-s2lp into your project.
renard-phy-s2lp was partly created by carefully studying the source code of STMicroelectronics' STM32Cube Software Expansion "X-CUBE-SFOX".
renard-phy-s2lp is licensed under the MIT License. See LICENSE for details.