logoalt Hacker News

ejanustoday at 2:24 PM1 replyview on HN

Interesting! I will like to see your circuits, if any.


Replies

MiracleRabbittoday at 2:35 PM

Not much circuits needed.

The SDP600-25Pa speaks I2C and only has a handful of commands.

Just read it out with a microcontroller you love (like ESP32) and send the samples to a host for analysis. The ESP32 has limited I2C time stretching capabilities limiting it in the highest resolution modes of the sensor - but often that's not a big factor.

To not overwhelm the poor processor and Wifi maybe better a bunch of frames (like 512 or more).