Product description: I2C Environmental Sensor - for Raspberry Pi Pico - Waveshare 20232
A module designed for the Raspberry Pi Pico equipped with a range of useful environmental sensors. Manufactured by Waveshare, it includes 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. It uses I2C bus to communicate with the main module. It can be programmed using C / C++ and MicroPython language.
The product is compatible with Raspberry Pi Pico!
A product wiki page is available on the manufacturer's website. Check it out!
I2C environmental sensor - for Raspberry Pi Pico - Waveshare 20232.
Arrangement of components on the board.
Elements layout on the board
- Digital ambient light sensor TSL25911FN, to measure infrared and visible light
- UV sensor LTR390-UV-1
- SGP40VOC sensor
- 3-axis Accelerometer, 3-axis Gyroscope, 3-axis Magnetometer ICM20948
- 5V to 3.3V / 1.8V voltage level converter
- BME280Temperature, humidity and air pressure sensor
- Logic level converter 3.3 V - 1.8 V
- I2C address selection jumper
Environmental sensor specifications
- Purpose: for Raspberry Pi Pico
- Built-in sensors:
- digital ambient light sensor
- temperature, humidity and air pressure sensor
- 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: 52 x 21 mm
Ambient light sensor specification
- Embedded chip: TSL25911FN
- I2C interface address: 0x29
- Range: 0 lx to 88000 lx
The way to connect the ambient sensor with Raspberry Pi Pico (sold separately).
Pinout on the board.
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
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
Specification of UV measurement sensor
- Embedded circuit: LTR390-UV-1
- I2C interface address: 0x53
- Wavelength: 280 nm to 430 nm
Interpretation of VOC index readings.Specification of VOC sensor
- Purpose: to detect volatile organic compounds in the environment
- Embedded circuit: SGP40
- I2C interface address: 0x59
- Measurement scale: from 0 ppm to 1000 ppm
- VOC index value: from 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: moderately polluted
- between 400 and 500 - air quality: very polluted
Useful links |
