BME280 is a breakout board equipped with for Sensortec ME280 temperature, humidity and pressure sensors. The board has an optional I2C address jumper (welded link GS2), I2C pull-up resistor, 7-pin 2.54mm and two 3.5mm mounting holes. Single board default settings; single power rail equal Vdd_IO (welding link GS1), pull-up resistance (R2, R3) 10k, protocol selection resistance 0ohm (R1), two power supply pins and decoupling capacitors on Vdd_IO 0.1 uF. If you connect the board to two power rails VDD_IO 1.8V and 3.3V, be sure to remove the power rail jumper GS1! Package 2.5 mm x 2.5 mm x 0.93 mm Metal cover LGA Digital interface I2C (up to 3.4 MHz) and SPI (3-wire and 4-wire, up to 10 MHz) Power supply voltage Main power supply voltage range: 1.71 V to 3.6 V VDDIO interface voltage range: 1.2 V to 3.6 V Current consumption 1.8 @ 1 Hz Humidity and temperature 2.8 @ 1 Hz pressure and temperature 3.6 @ 1 Hz humidity, pressure and temperature 0.1 sleep mode Operating range: -40 to +85, 0 to 100% rel. Humidity, 300 to 1100 - Humidity sensor and pressure sensor can be enabled/disabled independently colour: as shown Material: ABS Package Contents: 1 set x -BME280-5V Atmospheric pressure sensor module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.