BME280 I2C or SPI Temperature Humidity Pressure Sensor
Now available from PMD Way are these useful and compact BME280 I2C or SPI Temperature Humidity Pressure Sensor boards.
You can select your required operating voltage between 3.3V or 5V using the options menu.
The BME280 from Bosch is a low-cost sensing solution for measuring humidity with ±3% accuracy, barometric pressure with ±1 hPa absolute accuracy, and temperature with ±1.0°C accuracy. As pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with ±1 meter or greater accuracy.
The BME280 is the next-generation of sensors from Bosch, and is the upgrade to the BMP085/BMP180/BMP183 - with a low altitude noise of 0.25m and the same fast conversion time. It has the same specifications, but can use either I2C or SPI.