Driver for Semtech LR2021 transceiver

General setup

Radio protocols

LoRa

Support all previous LoRa chips (dedicated legacy mode for SX127x syncword and SF6) and includes high bandwidth (1Mb/s) and better FEC.

Status: Basic test between two LR2021

BLE

Bluetooth Low-Energy fully suppported, including BLE Coded.

Status: Tested only for BLE 1MB/s, both between two LR2021 and with other chips.

FLRC (Fast Long Range Communication)

Semtech proprietary protocol (G)MSK modulation with high sensitivity.

Status: Basic test between two LR2021

Generic FSK (Frequency Shift Keying)

Status: Tested between two LR2021

WiSUN (Wireless Smart Utility Network)

WMBus (Wireless MBus)

OOK (On-Off Keying)

Status: Only ADSB reception validated

LR-FHSS

Semtech proprietary protocol using ultra-narrow-band modulation with frequency hopping. Only transmission is supported.

BPSK

Sigfox up-link modulation, TX only.

Examples

A few simple applications using this driver are available in the Github repository lr2021-apps