GY-BME280-3.3V Temperature and Humidity Atmospheric Pressure Sensor

Digital interface I2C (up to 3.4 MHz) and SPI (3 and 4 wire, up to 10 MHz)

Supply voltage VDD mains supply voltage range: 1.71 V to 3.6 V

VDDIO interface voltage range: 1.2 V to 3.6 V

Power consumption 1.8 uA @ 1 Hz humidity and temperature

2.8 uA @ 1 Hz pressure and temperature

3.6 uA @ 1 Hz humidity, pressure and temperature

0.1 uA in sleep mode

Operating range -40…+85 C, 0…100 % rel. humidity, 300…1100 hPa- Humidity sensor and pressure sensor can be switched on/off independently

ME-BME280 is a Breakout Board with a Bosch Sensortec ME280 temperature, humidity and pressure sensor.

The board has a selectable I2C address jumper (solder link GS2), I2C pull resistors, 7-pin header 2.54mm and two 3.5mm mounting holes.

Default setting of the board; single power rail Vdd=Vdd_IO (solder link GS1), pull-ups resistors (R2, R3) 10k, protocol selector resistor 0ohm (R1), decoupling capacitors 0.1uF on both power pins Vdd & Vdd_IO.

If you connect the board to both power rails VDD_IO 1.8V and VDD 3.3V, be sure to remove the power rail jumper GS1!

BME280, the precision sensor from Bosch, is soldered on PCB.

Not only the pressure and the temperature, this sensor can measure the humidity.

It uses both I2C and SPI (supports 3, 4 wire SPI) interface

Specifications:

Supply voltage: 1.8 - 5V DC

Interface: I2C (up to 3.4MHz), SPI (up to 10MHz)

Operating Range:

Temperature: -40 to +85°C

Humidity: 0-100%

Pressure: 300-1100 hPa

Solution:

Temperature: 0.01°C

Humidity: 0.008%

Pressure: 0.18Pa

Accuracy:

Temperature: +-1°C

Humidity: +-3%

Pressure: +-1Pa

I2C address

SDO LOW: 0x76

SDO HIGH: 0x77