BME280 Temp / Humidity / Pressure
I²C / SPI sensor with ±0.5 °C, ±3 %RH and ±1 hPa accuracy — plugs straight int
The L511-2 combines 4G Cat.1 with GPS/BeiDou, reporting position and cell data over AT commands — the same class as the Air780E.
Exclusive with pages 19 / 32 / 34 (same 43/44 UART). ★ Needs a 3.4–4.2 V rail; AT field order differs slightly from the Air780E.
| Network | 4G Cat.1 + GPS/BeiDou |
|---|---|
| Interface | UART (43 / 44) + AT |
| Supply | 3.4–4.2 V |
| SIM | Nano SIM |
Owners talk about wiring, quirks and fixes here — ask anything.
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