Environmental sensor - hat for Raspberry Pi - Waveshare 20471

Index: WSR-20550 EAN: 5904422381646
An environmental sensor in the form of an overlay for Raspberry Pi equipped with a number of useful sensors. It has built-in temperature, humidity, air pressure, ambient light for measuring infrared and visible light, a 9 DoF motion sensor, a sensor for measuring UV rays, and a VOC sensor for detecting volatile organic compounds in the environment. The overlay uses the I2C bus for communication. It is powered by a voltage of 5 V.
Environmental sensor - hat for Raspberry Pi - Waveshare 20471
€49.69
€40.40 tax excl.
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Manufacturer: Waveshare
Compatibility: Raspberry Pi

Product description: Environmental sensor - overlay for Raspberry Pi - Waveshare 20471

Environmental sensor overlay for Raspberry Pi equipped with a range of useful sensors. It has a built-in sensor for temperature, humidity, air pressure, ambient light for measuring infrared and visible light, a 9 DoF motion sensor, a sensor for measuring UV rays, and a VOC sensor for detecting volatile organic compounds in the environment. The overlay uses the I2C bus for communication. It is powered by a voltage of 5 V.

Kit contents

  • Environmental sensor - overlay for Raspberry Pi - Waveshare 20471 - 1 piece
  • Female header 2x20 pin - 2.54 mm pitch - 1 piece
  • Goldpin strip 1x4 pin - 2.54 mm raster - 1 piece
  • Set of screws and spacers to connect to Raspberry Pi
    • Male to female spacer - 2 pieces
    • mounting screws - 3 pieces
    • washers - 3 pieces
Zawartość zestawu.

Kit contents.

Product compatible with Raspberry Pi

The manufacturer provides a product wiki page that contains a detailed user guide and useful programming resources.

Nakładka posiada wyprowadzenia zgodne z rozmieszczeniem złącz GPIO w Raspberry Pi.

The overlay has pinouts that match the GPIO connector layout on the Raspberry Pi.

Special features

  • Pinouts are compatible with Raspberry Pi GPIO pinouts
  • Built-in TSL25911FN digital ambient light sensor, to measure infrared and visible light
  • Built-in BME280 sensor, to measure temperature, humidity and pressure
  • Embedded ICM20948 motion sensor - 3-axis accelerometer, 3-axis gyroscope and 3-axis magnetometer
  • Embedded LTR390-UV-1 UV sensor
  • Embedded SGP40 sensor for ambient VOC detection
  • Communication via I2C interface
  • Manufacturer provides examples and programming resources (examples for Raspberry Pi / Arduino / STM32)

Arrangement of elements on the frontend

  1. GPIO pinouts compatible with Raspberry Pi
  2. TSL25911FN digital ambient light sensor, for infrared and visible light measurements
  3. UV sensor LTR390-UV-1
  4. SGP40 VOC sensor
  5. ICM20948 - 3-axis accelerometer, 3-axis gyroscope, 3-axis magnetometer
  6. BME280 Temperature, humidity and air pressure sensor
  7. Logic level converter from 3.3 V to 1.8 V
  8. Voltage regulator 5 V to 3.3 V / 1.8 V
Rozmieszczenie elementów na nakładce

Arrangement of the components on the overlay.

Wyprowadzenia nakładki.

Leads of the overlay.

Pinout description

  • 5 V - power pin
  • GND - system ground
  • SDA - I2C bus data line
  • SCL - I2C bus clock line

Temperature, humidity and air pressure sensor specification

  • Embedded chip: BME280
  • I2C interface address: 0x76
  • Temperature measurement:
    • range: from -40°C to 85°C
    • resolution: 0.01°C
    • accuracy: ± 1°C
  • Humidity measurement:
    • range: from 0% to 100% RH
    • resolution: 0.008% RH
    • accuracy: ± 3% RH
    • response time: 1 s
    • delay: ≤ 2% RH
  • Pressure measurement:
    • range: from 300 hPa to 1100 hPa
    • resolution: 0.18 Pa
    • accuracy: ± 1 hPa

Technical specifications of the environmental sensor

  • Application: for Raspberry Pi
  • Built-in sensors:
    • digital ambient light sensor
    • sensor for measuring temperature, humidity and air pressure
    • motion sensor - 3-axis accelerometer, 3-axis gyroscope, 3-axis magnetometer
    • UV radiation sensor
    • sensor for the detection of volatile organic compounds in the environment
  • Communication interface: I2C bus
  • Board dimensions: 65 x 30 mm

Ambient light sensor specification

  • Integrated circuit: TSL25911FN
  • I2C interface address: 0x29
  • Range: 0 lx to 88000 lx
Nakładka posiada 4 otwory montażowe.

The cap has 4 mounting holes.

Interpretacja wskazań indeksu VOC.Interpretation of VOC index readings.

Specification of VOC sensor

  • Purpose: to detect volatile organic compounds in the environment
  • Embedded circuitry: SGP40
  • I2C interface address: 0x59
  • Measurement scale: from 0 ppm to 1000 ppm
  • VOC index value: 0 to 500
    • from 0 to 100 - air quality: excellent
    • 100 to 200 - air quality: good
    • 200 to 300 - air quality: slightly polluted
    • 300 to 400 - air quality: medium pollution
    • 400 to 500 - air quality: very dirty

Motion detector specifications

  • Integrated circuit: ICM20948
  • Number of degrees of freedom: 9 DoF
  • Number of measurement axes: 3 (X, Y, Z)
  • I2C interface address: 0x68
  • Resolution: 16 bit
  • Accelerometer:
    • measurement: acceleration
    • range: ± 2, ± 4, ± 8, ± 16 g (configurable)
  • Gyroscope:
    • measurement: angular velocity
    • range: ± 250, ± 500, ± 1000, ± 2000 °/s (configurable)
  • Magnetometer:
    • measurement: magnetic field
    • range: ± 4900 µT

UV measurement sensor specifications

  • Embedded circuit: LTR390-UV-1
  • I2C interface address: 0x53
  • Wavelength: 280 nm to 430 nm

Environmental sensor - overlay for Raspberry Pi - Waveshare 20471.

Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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