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Thanks to Bosch, now wersquo;ve got a three-in-one, low-cost and high-precision environmental sensor, theGrove - Tempamp;Humiamp;Barometer Sensor (BME280). It is based on their new BME280 sensor, which is even superior to BMP280 used inGrove ndash; Barometer Sensor (BMP280), and any other former versions like BMP180 used inGrove ndash; 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 plusmn;1.0 hPa accuracy, while the sensor works perfectly for temperatures between - 40 and 85 with an accuracy of plusmn;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 plusmn;1 meter accuracy, which makes it a precise altimeter as well. Another great thing about this module is that, you donrsquo;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.
Note: As the sensor is quite sensitive to the environmental conditions, please DO NOT touch it with your fingers.
FEATURES
High accuracy, absolute accuracy of plusmn;1.0 hPa for pressure, plusmn;1 accuracy for temperature and plusmn;3% for humidity
Easy-to-use Grove Compatible Interface
Supports both I2C and SPI communication
Can be used as an altimeter with accuracy of plusmn;1 meter
SPECIFICATION
Supply Voltage: 5V or 3.3V
Current Consumption: 0.4 mA
Temperature Measurement:
Range: -40 to 85
Accuracy: plusmn;1
Humidity Accuracy: plusmn;3%
Barometric Pressure Measurement:
Range: 300 ndash; 1100 hPa
Accuracy: plusmn;1.0 hPa
Interface: I2C and SPI
Grove Port: I2C (selectable address at 0x77(default) and 0x76)
Dimensions: 20mm x 40mm
Weight: 4g
DOCUMENTS
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Informazioni aziendali
ROBOT DOMESTICI SRL - Via Cornelio Labeone, 70 - 00174 Roma (RM)
Partita IVA IT15791431008 - REA di Roma n. RM 1614298
CODICE FATTURAZIONE ELETTRONICA: KRRH6B9
Tel. (+39) 06 76971136 | e-mail: info@robot-domestici.it