資料來源:https://www.seeedstudio.com/Grove---Temp%26Humi%26Barometer-Sensor-%28BME280%29-p-2653.html
Thanks to Bosch, now we’ve got a three-in-one, low-cost and high-precision environmental sensor, the Grove - Temp&Humi&Barometer Sensor (BME280).
It is based on their new BME280 sensor, which is even superior to BMP280 used in Grove – Barometer Sensor (BMP280), and any other former versions like BMP180 used in Grove – Barometer Sensor (BMP180).
The module provides precise measurement of not only barometric pressure and temperature, but also the humidity in the environment. The air pressure can be measured in a range from 300 hPa to 1100hPa with ±1.0 hPa accuracy, while the sensor works perfectly for temperatures between - 40 and 85 with an accuracy of ±1 . As for the humidity, you can get a humidity value with an error less than 3%.
Owing to its high accuracy on measuring the pressure, and the pressure changes with altitude, we can calculate the altitude with ±1 meter accuracy, which makes it a precise altimeter as well.
Another great thing about this module is that, you don’t even need to worry about the I2C collisions as it provides both I2C and SPI interfaces.
To use SPI, simply de-solder the bonding pads on the back. If you go with I2C, the board also provides 2 I2C addresses for you to select as you want.
Features
High accuracy, absolute accuracy of ±1.0 hPa for pressure, ±1 accuracy for temperature and ±3% for humidity
Easy-to-use Grove Compatible Interface
Supports both I2C and SPI communication
Can be used as an altimeter with accuracy of ±1 meter
Note
As the sensor is quite sensitive to the environmental conditions, please DO NOT touch it with your fingers.
Dimensions | 40mm x 20mm x 15mm |
Weight | G.W 10g |
Battery | Exclude |
Supply Voltage | 5V or 3.3V |
Current Consumption | 0.4 mA |
Humidity Accuracy | ±3% |
Interface | I2C and SPI |
Grove Port | I2C (selectable address at 0x77(default) and 0x76) |
Temperature Measurement: | |
Range | -40 to 85 |
Accuracy | ±1 |
Barometric Pressure Measurement: | |
Range | 300 – 1100 hPa |
Accuracy | ±1.0 hPa |
Grove - Temp&Humi&Barometer Sensor (BME280) | 1 |
Grove - Cable | 1 |
由於博世,現在我們已經有了一個三功能於一身,低成本,高精度環境傳感器,在樹叢-溫度和腐殖與氣壓計傳感器(BME280) 。
它是基於他們的新BME280傳感器,它甚至優於中使用BMP280 格羅夫-晴雨表傳感器(BMP280) ,以及任何其他前任版本一樣BMP180中使用的樹叢-晴雨表傳感器(BMP180) 。
該模塊提供不僅氣壓和溫度,而且在環境中的濕度的精確測量。的空氣壓力可在範圍來測量從300 hPa到1100hPa與±1.0百帕準確性,而傳感器完全適用的溫度- 40和85±1的精度。至於濕度,就可以得到一個濕度值低於3%的誤差。
由於對測量壓力的測量精度高,並與高度的壓力變化,就可以計算±1計的精度,這使得它精確高度表以及海拔高度。
這個模塊的另一個偉大的事情是,你甚至不需要擔心I2C碰撞,因為它提供I2C和SPI接口。
使用SPI,簡單地解焊接背面的焊接區。如果用I2C去,該主板還提供了2個I2C地址供您選擇,只要你想。
特徵
規範
DOCUMENTS
注意
由於傳感器是環境條件非常敏感,請不要用手指觸摸它。