GY-BME280-3.3 是一款專為移動應用而開發的集成環境傳感器，其尺寸和低功耗是關鍵設計約束條件。該單元結合了8針金屬蓋2.5 x 2.5 x 0.93mm³LGA封裝的獨立高線性度，高精度傳感器，適用於壓力，濕度和溫度，設計用於低電流消耗（3.6μA@ 1Hz），長期穩定性高EMC穩健性。 濕度傳感器具有極快的響應速度，支持新興應用的性能要求，例如環境感知，以及寬溫度範圍內的高精度。壓力傳感器是一個絕對的氣壓傳感器，在非常低的噪音下具有極高的精度和分辨率。集成的溫度傳感器針對非常低的噪音和高分辨率進行了優化。它主要用於壓力和濕度傳感器的溫度補償，也可用於估計環境溫度。
Description ME-BME280 is a Breakout Board featuring a Bosch Sensortec ME280 Temperature, Humidity & Pressure Sensor. The board has selectable I2C address jumper (solder link GS2), I2C pull-up resistors, 7 pin header 2.54mm, and two mounting holes 3.5mm . 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 supply pins Vdd & Vdd_IO . If you connect board to both power rails VDD_IO 1.8V and VDD 3.3V be sure to remove the power rail jumper GS1! GY-BME280-3.3 Features – Package 2.5 mm x 2.5 mm x 0.93 mm metal lid LGA – Digital interface I2C (up to 3.4 MHz) and SPI (3 and 4 wire, up to 10 MHz) – Supply voltage VDD main 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 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 independently enabled/disabled Bosch has stepped up their game with their new BMP280 sensor, an environmental sensor with temperature, barometric pressure that is the next generation upgrade to the BMP085/BMP180/BMP183. This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI! This precision sensor from Bosch is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuraccy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with ±1 meter 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. For simple easy wiring, go with I2C. If you want to connect a bunch of sensors without worrying about I2C address collisions, go with SPI.
