The Adafruit BME280 Temperature, Humidity, Pressure Sensor is an excellent choice for your next environmental/weather project with the advantage of I2C and SPI connectivity. See below for details about its measurement accuracy, in particular the pressure sensor is accurate enough to reliably measure altitude to within 1m. The board has an onboard regulator and level shifting to make it 3.3 and 5V compatible for logic and power. Supplied as a fully assembled and tested sensor board plus a strip of 01.in. header pins for you to solder on as required. Adafruit provide a free tutorial and software library to help get you started. * Humidity accuracy ±3% * Temperature accuracy ±1.0°C * Barometric pressure accuracy ±1hPa * Altitude accuracy ±1m * 3.3 to 5V logic and power compatible * Dimensions: 19.0 x 18.0 x 3.0mm (0.7 x 0.7 x 0.1in.) * Adafruit part no.: 2652 *Customers looking to resell on eBay or Amazon should contact Adafruit directly. https://elecena.pl/product/27279006/adafruit-2652-bme280-i2c-or-spi-temperature-humidity-pressure-sensor 2024-11-14 https://elecena.pl/product/27279006/adafruit-2652-bme280-i2c-or-spi-temperature-humidity-pressure-sensor 2025-03-28 https://elecena.pl/product/27279006/adafruit-2652-bme280-i2c-or-spi-temperature-humidity-pressure-sensor 2025-06-17 https://elecena.pl/product/27279006/adafruit-2652-bme280-i2c-or-spi-temperature-humidity-pressure-sensor 2025-08-15 https://elecena.pl/product/27279006/adafruit-2652-bme280-i2c-or-spi-temperature-humidity-pressure-sensor 2025-09-25