Environmental Module

The sensor array can measure different environmental factors like climate, noise, ambient light, and even different smells using AI on the edge. It can also control IR devices such as air-conditioners. This combination offers flexibility and cost-effectiveness for monitoring multiple environmental conditions in various applications, including intelligent buildings, agriculture, and industrial process control.

Environmental Module Front View

Sensor Array

We refer to sensor manufacturers' datasheets to provide the specifications. The sensor readings may differ due to application, sensor aging, storage, transportation, environmental factors, factory calibration process, etc.

Bosch BME688 Environmental Sensor with AI

BME688 is an integrated environmental sensor that combines multiple measurements, including temperature, humidity, pressure, and volatile organic compounds (VOCs), in a single package. BME688 also has a gas scanner function, distinguishing pre-trained gasses with AI.

Measurement	Accuracy	Min	Max
Temperature	± 0.5°C @ 0...65°C	-40°C	85°C
Relative Humidity	± 3% rH @ 20-80% rH 25°C	0% rH	100% rH
Air Pressure	± 0.6 hPa @ 0-65°C	300 hPa	1100 hPa
Indoor Air Quality	N/A	0 IAQ Index	500 IAQ Index
tVOC	N/A	N/A	N/A
CO2 Equivalent	N/A	N/A	N/A
Gas Classification	N/A	2 Classes	4 Classes
Dew Point	N/A	-40°C	40°C

Bosch BME280 Sensor (Optional to BME688)

BME280 is a high-accuracy combined temperature, humidity, and pressure sensor.

Measurement	Accuracy	Min	Max
Temperature	± 1°C @ 0...65°C	-40°C	85°C
Relative Humidity	± 3% rH @ 20-80% rH 25°C	0% rH	100% rH
Air Pressure	± 1 hPa @ 0-65°C	300 hPa	1100 hPa
Dew Point	N/A	-40°C	40°C

Ambient Light Sensor

TSL2540 is a high-sensitivity light intensity sensor that measures visible and infrared lights. In addition, this sensor features a trigger function that wakes the system up in case of a threshold hit.

Measurement	Accuracy	Condition
Visible Light	363 counts / μW/cm2	White LED, 2700K
Infrared Light	352 counts / μW/cm2	950 nm LED

IR Remote Transceiver

This sensor array has an infrared transmitter, which can control air conditioners or multimedia systems.

Property	Value
Peak wavelength	940 nm
Angle of half intensity	φ = ± 60°
Power dissipation	190 mW

Microphone

The microphone on this sensor array can measure average sound pressure.

Property	Value	Condition
Sensitivity	-42 dBV/Pa	94 dB SPL @ 1 kHz
Signal to Noise Ratio	59 dB(A)	94dB SPL @ 1 kHz, A-weighted (20-10kHz)
Total Harmonic Distortion	0.1 %	94 dB SPL @ 1 kHz
Acoustic Overload Point	129 dB SPL	0% THD @ 1 kHz

Libraries and Samples

Some of our devices come with firmware that automatically utilizes the module without requiring any coding. For development kits or further customization, you may choose to use the following libraries and samples to create a custom application.

BME280 Env SensorBME688 Env SensorTSL2540 Light Sensor