Sensors · BME280In progress
BME280 Temp / Humidity / Pressure
I²C / SPI sensor with ±0.5 °C, ±3 %RH and ±1 hPa accuracy — plugs straight int
¥31.20¥39.0020% off for members
120 in stock
📶SIM800L
Accessories
SIM800L 2G GSM/GPRS Module
¥33.60¥42.0020% off for members
Classic 2G module for SMS, calls and GPRS over AT commands. Small and well documented, but 2G networks are being retired and it is very demanding on power.
⚠ Before you use it
Shares the 43/44 UART with pages 19 / 32 / 34. ★ It wants 3.7–4.2 V (not 3.3/5 V) and 2 A peaks — give it its own supply or the board reboots. Also confirm 2G is still alive in your area.
Specifications
| Network | 2G GSM/GPRS 900/1800 MHz |
|---|---|
| Interface | UART (on-board 43 / 44) |
| Supply | 3.7–4.2 V, 2 A peak |
| SIM | Micro SIM |
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Owners talk about wiring, quirks and fixes here — ask anything.
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