https://www.silabs.com/wireless/bluetooth/efr32bg1-series-1-socs/device.efr32bg1p232f256gm48?tab=softwareandtools
EFR32BG1P232F256GM48 BLE ICs - Silicon Labs - Silicon Labs
The EFR32BG1P232F256GM48 (EFR32BG1 Series 1) BLE ICs include support for BLE, Bluetooth 5, Bluetooth mesh networking, and proprietary wireless development.
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