# Driver for Semtech LR2021 transceiver
## General setup
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## 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.
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## Examples
A few simple applications using this driver are available
in the Github repository [lr2021-apps](https://github.com/TheClams/lr2021-apps)