ESP32 ⨯ Sensirion SPS30+SCD41+SGP41 case
how to build All sensors are from Sensirion. They all use I²C bus. The two little ones can withstand 3.3V and 5V, the PM sensor needs 5V. I choose to operate the little ones at 3.3V to minimize their heating. The SCL and SDA wires can be…
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