BME280 Temp / Humidity / Pressure
I²C / SPI sensor with ±0.5 °C, ±3 %RH and ±1 hPa accuracy — plugs straight int
433 MHz ASK/OOK transmitter, 3–12 V, tens of metres with a 17 cm antenna. Use it for remotes, door sensors or wireless switches — encoding (EV1527/PT2262 or your own) is up to you.
No 433 MHz page in the firmware — you supply the encoding. Watch GPIO conflicts if you also use page 33.
| Frequency | 433.92 MHz (ASK/OOK) |
|---|---|
| Supply | 3–12 V, <1 mA idle |
| Interface | Single DATA pin |
| Range | 20–50 m open air |
Owners talk about wiring, quirks and fixes here — ask anything.
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