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Raspberry Pi Environment Sensor HAT expansion board (20471)
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The Raspberry Pi Environment Sensor HAT (20471) is designed specifically for the Raspberry Pi and has a rich arsenal of built-in sensors: ambient light, organic compounds in the air, IR/UV sensor, gyroscope, accelerometer, magnetometer, barometer, temperature and humidity sensor, etc. and allows you to collect environmental data, and can also be used to determine the orientation and movement of drones and robots.
Communication with the Raspberry Pi is via the I2C bus.
Functionality:
- Standard Raspberry Pi 40PIN GPIO expansion connector
- Built-in TSL25911FN digital ambient light sensor for measuring IR and visible light
- Built-in BME280 sensor for measuring temperature, humidity and air pressure
- Integrated motion sensor, accelerometer, gyroscope and magnetometer ICM20948
- Built-in sensor LTR390-UV-1 for measuring UV rays
- Built-in SGP40 sensor for detecting volatile organic compounds in the environment
- I2C bus, allows data acquisition with only two wires
- Comes with development resources and manual (examples for Raspberry Pi / Arduino / STM32)
Specifications:
| TSL25911FN - digital ambient light sensor | |
|---|---|
| I2C address | 0x29 |
| Operating range | 088000Lux |
| BME280 - air temperature, humidity and pressure sensor | |
| I2C address | 0x76 |
| Temperature detection | -40 85℃ (0.01℃ resolution, ±1℃ accuracy) |
| Humidity detection | 0100%RH (0.008%RH resolution, ±3%RH accuracy, 1s response time, ≤2%RH delay) |
| Air pressure detection | 3001100hPa (0.18hPa resolution, ±1hPa accuracy) |
| ICM20948 - 9-AXIS MOTION SENSOR: 3-axis accelerometer, 3-axis gyroscope, 3-axis magnetometer | |
| I2C address | 0x68 |
| Accelerometer resolution | 16-bit |
| Accelerometer range (switchable) | ±2, ±4, ±8, ±16g |
| Gyroscope resolution | 16-bit |
| Gyroscope range (switchable) | ±250, ±500, ±1000, ±2000°/sec |
| Magnetometer resolution | 16-bit |
| Magnetometer range | ±4900µT |
| LTR390-UV-1 - UV SENSOR | |
| I2C address | 0x53 |
| The wavelength of the sensor | 280nm - 430nm |
| SGP40 VOC - AIR SENSOR | |
| I2C address | 0x59 |
| Measuring range | 0 1,000 ppm ethanol equivalent |
| Limit condition | < 0.05 ppm ethanol equivalent OR < 10 % of the set point concentration (the larger one must prevail) |
| Response time | < 10 s (tau 63 %) |
| Run time | < 60 s |
| Integrated support for humidity compensation | |
Board elements:

- Raspberry Pi GPIO connector
- TSL25911FN digital ambient light sensor for measuring infrared and visible light
- UV sensor LTR390-UV-1
- VOC air sensor SGP40
- ICM20948 3-axis accelerometer, 3-axis gyroscope, 3-axis magnetometer
- BME280 air temperature, humidity and pressure sensor
- Logic level conversion from 3.3 V to 1.8 V
- Voltage regulator from 5 V to 3.3 V / 1.8 V
The purpose of the connectors:

Information for developers (Wiki): Environment_Sensor_HAT
Overall dimensions: 65mm x 30mm

Included in the package:
- Environment Sensor HAT x1 board
- Connector 20PIN female x2
- 4PIN female connector x1
- RPi screws pack (2pcs) x1
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Weight: 0.018 kg
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