Just this week I hooked a BME280 into a NodeMCU ESP8266 board (effectively an Arduino-like board with WiFi).GeneralError wrote: Maybe it is a less challanging approach to not use the chip from the device but instead buy some sensor like BMP180, BMP280, BME280. They costs only a few bugs (~5 Euro). I have not worked with it so far, but with its i2c interface it should be easy to connect it to an arduino.
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BME280 ESP8266
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VIN---3.3V
GND---GND
SCL---D1 (GPIO5)
SDA---D2 (GPIO6)