How to use smart air quality sensors for environmental monitoring
An automatic fan cleaning mode can be triggered at a preset interval to ensure consistent measurements. Fan cleaning accelerates the fan to maximum speed for 10 seconds and blows out accumulated dust. The PM measurement function is offline during fan cleaning. The default cleaning interval is weekly, but other intervals can be set to meet specific application requirements.
Dev kits and secure boot
Figure 4: This dev kit from Sensirion and Infineon can implement secure boot and secure firmware updates. (Image source: DigiKey)
The SEK-SPS30 air quality monitor sensor evaluation board can be used to connect the SPS30 to a PC to start exploring the capabilities of this PM sensor. In addition, DigiKey offers a platform to combine Sensirion’s air quality sensors with Infineon’s PSoC 6 MCUs to develop next-generation intelligent air quality monitoring systems. For smart building systems where privacy is a concern, PSoC 6 supports secure boot and secure firmware updates (Figure 4).
monitor for shocks up to 24G and impact duration, enabling the system to identify when the battery pack has been exposed to shocks above safe levels. It can measure: ■ 0.2 to 5.5 Bar absolute pressure ■ -30°C to +120°C air temperatures ■ VOCs, equivalent CO 2 (eCO 2 ), and H 2 in parts per billion (ppb) ■ Absolute humidity in milligrams of water vapor per cubic meter (mg/m 3 ) ■ Dew point temperature
CAN sensor dev kit The DEVKGEN1V1 development kit helps to shorten the system integration time when using Metis CAN sensors. The sensors include a configurable CAN bus speed and address along with a DBC CAN database that supports integration into almost any vehicle with a CAN bus. The basic dev kit can be expanded, enabling developers to add more sensors to the CAN network.
Battery pack sensor
EV and BESS battery pack designers can use the CANBSSGEN1 from Metis Engineering for battery safety monitoring. It’s designed to detect early failures due to cell venting. This CAN bus-based sensor includes a replaceable air filter and is especially useful in EVs (Figure 5). An optional accelerometer can
Figure 5: This battery safety monitor sensor includes a replaceable air filter (center white circle). (Image source: Metis Engineering)
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