lora: Add SX1272/SX1276 unified driver and LoRaWAN MAC layer#1102
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ddtdanilo wants to merge 2 commits intomicropython:masterfrom
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lora: Add SX1272/SX1276 unified driver and LoRaWAN MAC layer#1102ddtdanilo wants to merge 2 commits intomicropython:masterfrom
ddtdanilo wants to merge 2 commits intomicropython:masterfrom
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Add a LoRa radio driver that handles both SX1272 and SX1276 transceivers. The existing lora-sx127x package only supports SX1276 (version register 0x12); this driver also handles SX1272 (version 0x22) with its different register layouts for bandwidth, coding rate, CRC, and RSSI calculation. Used by Pycom LoPy (SX1272) and LoPy4 (SX1276) boards as defined in micropython/micropython#19026. Signed-off-by: Danilo D <danilodt@gmail.com>
Add LoRaWAN Class A device operation with OTAA and ABP activation. Includes AES-128-CMAC/CTR crypto primitives built on ucryptolib for MIC calculation, payload encryption, and session key derivation per the LoRaWAN 1.0.x specification. Used by Pycom LoPy/LoPy4 boards as defined in micropython/micropython#19026. Signed-off-by: Danilo D <danilodt@gmail.com>
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projectgus
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Apr 3, 2026
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This looks really exciting, thanks @ddtdanilo! Had always hoped the LoRa micropython-lib support would be enough for someone to build a LoRaWAN driver.
Do you mind moving the lorawan support into its own PR, please? There's a lot of new code here, and it will be easier to review and merge these independently.
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Summary
Add two new LoRa packages for Pycom board support:
lora-sx127x-pycom
Unified SX1272/SX1276 LoRa radio driver. The existing
lora-sx127xpackage only supports SX1276 (version register 0x12); this driver also handles SX1272 (version 0x22) with its different register layouts for bandwidth encoding, coding rate bits, CRC location, and RSSI calculation offsets.lora-lorawan
LoRaWAN 1.0.x MAC layer with:
ucryptolibBoth packages are used by the Pycom LoPy (SX1272) and LoPy4 (SX1276) board definitions in micropython/micropython#19026.
Testing
ruff checkandruff format