240 Hyt221 Sensor project

At work they wanted to build 24 brickwalls and measure humidity in 10 of the bricks in every wall.

Lars Anderson

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Description

240 Hyt221 sensors measuring via i2c bus. One Arduino to read them all. And labview to collect the data.

Details

I searched the internet one evening because the sht sensors from Sensirion didnt seem stable at 90+ RH% and they seemed to break at 100%. And one guy mentioned HYT221 in a long thread about humidity sensors and recommended it for its stability at 90-100%. So a few weeks later we bought 240 from the company in Germany.