Rutronik’s Sensorfusion adapter board contains six sensors from their leading sensor manufacturers. This board is an Arduino shield adapter and is powered via Arduino headers with a single 3.3 V supply. The list of on-board sensors is as follows:
Infineon’s DPS310 digital XENSIV™ barometric pressure sensor
-> Operation range: Pressure: 300 – 1200 hPa. Temperature: -40 – 85°C
-> Pressure sensor precision: ±0.002 hPa (high precision mode)
-> Relative accuracy: ±0.06 hPa
-> Absolute accuracy: ±1 hPa
-> Temperature accuracy: ±0.5°C
-> Pressure temperature sensitivity: 0.5 Pa/K
-> Measurement time: Typical: 27.6 ms for standard mode (16x). Minimum: 3.6 ms for low precision mode
-> Average current consumption: 1.7 µA for Pressure Measurement, 1.5 µA for Temperature measurement @ 1 Hz sampling rate, Standby: 0.5 µA
-> Package dimensions: 8-pin LGA, 2.0 mm x 2.5 mm x 1.0 mm
Bosch’s BMP581 digital pressure sensor
-> Operation range: Pressure: 30 – 125 kPa. Temperature: -40 – 85°C
-> Absolute pressure accuracy: ±0.5 hPa (max)
-> Relative pressure accuracy: 0.06 hPa per 10 kPa step
-> Pressure temperature-induced offset: ± 0.5 Pa/K
-> Ultra-low noise: <0.1 PaRMS
-> Ultra-low current consumption: 1.3 µA at 1 Hz in low-power mode
-> Package dimensions: 10-pin metal-lid LGA, 2.0 mm × 2.0 mm x 0.8 mm (max)
Sensirion’s SGP40 indoor air quality sensor for VOC measurements
-> Measurement range (Ethanol in clean air): 0 – 1000 ppm
-> Specified range (Ethanol in clear air): 0.3 – 30 ppm
-> Device-to-device variation: <±15 VOC index points
-> Repeatability: <±5 VOC index points
-> Limit of detection (Ethanol in specified range): <0.05 ppm or <10% of concentration setpoint
-> Response time (Changing concentration from 5 to 10 ppm of ethanol in 1 s): t63 <10 s, t90 <30 s
-> Low power consumption: 2.6 mA at 3.3 V
-> Package dimensions: 6-pin DFN, 2.44 mm x 2.44 mm x 0.85 mm
Bosch’s BME688 digital low-power gas, pressure, temperature, and humidity sensor with AI
->Operating range: -40 ‒ 85°C, 0 ‒ 100% RH, 300 ‒ 1100 hPa
-> Key parameters for gas sensor:
» F1 score for H2S scanning: 0.94
» Standard scan speed: 10.8 s / scan
» Output data processing major direct outputs: Index for Air Quality (IAQ), bVOC- & CO2-equivalents (ppm)
-> Key parameters for humidity sensor:
» Response time (t63): ~8 s
» Accuracy tolerance: ±3% RH
» Hysteresis: ±1.5% RH
-> Key parameters for pressure sensor:
» RMS Noise: 0.12 Pa
» Offset temperature coefficient: ±1.3 Pa/K
-> Key parameters for temperature sensor:
» Absolute accuracy: ±0.5 °C (0 ‒ 65°C)
-> Current consumption: 0.09 ‒ 12 mA for p/h/T/gas in customised operation modes, 0.15 µA in sleep mode
-> Package dimensions: 8-pin metal lid LGA, 3.0 mm x 3.0 mm x 0.93 mm
Sensirion’s SHT41 high-accuracy and low-power relative humidity and temperature sensor
-> RH range: 0 – 100% (extended)
-> RH accuracy: ±1.8% (typ.)
-> RH repeatability: high: 0.08%; medium: 0.15%; low 0.25%
-> RH resolution: 0.01%
-> RH hysteresis: ±0.8% @ 25°C
-> RH response time: 4 s (t63)
-> T range: -40 – 125°C
-> T accuracy: ±0.2°C (typ.)
-> T repeatability: high: 0.04°C, medium: 0.07°C, low: 0.1°C
-> T resolution: 0.01°C
-> T response time: 2 s (t63)
-> Current consumption: Average: 0.4 µA (at meas. rate 1 Hz), Idle: 80 nA
-> Package dimensions: 4-pin dual-flat-no-leads, 1.5 mm x 1.5 mm x 0.5 mm
Bosch’s BMI270 6-axis, smart, low-power inertial measurement unit
-> 16 bit digital, triaxial accelerometer with ±2g/±4g/±8g/±16g range
-> 16 bit digital, triaxial gyroscope with ±125dps/±250dps/±500dps/±1000dps/±2000dps range
-> Output data rates:
» Gyroscope: 25 Hz – 6.4 kHz
» Accelerometer: 0.78 Hz – 1.6 kHz
-> Rapid startup time: 2 ms for gyroscope (in fast start mode) and 2 ms for accelerometer
-> Fast offset error compensation
-> HW synchronization of accelerometer, gyroscope, and AUX sensor (< 1 µs)
-> 2 KB on-chip FIFO buffer for accelerometer, gyroscope, timestamps, and AUX sensor data
-> Built-in power management unit
-> Low current consumption: 685 µA (typ.)
-> Package dimensions: 14-pin LGA, 3.0 mm x 2.5 mm x 0.83 mm
All these sensors are configured to work with the I2C interface with the exception of the DPS310XTSA, which can be used with SPI as well as with I2C. Every sensor can be disconnected from the power supply and I2C circuits by unsoldering solder bridges so that the user can choose to test a single sensor within their design. For those looking to evaluate a few different environmental sensors in one go, this is a great board to get started.
(All images sourced from Rutronik)
