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Can I use a GY-21 temperature/humidity sensor with the Pro2?
#1

Hi,

As mentioned elsewhere on the forum, I've acquired various WeatherDuino boards and sensors from my former PhD supervisor after his untimely death. I'm trying to make sense of the stuff I have.

I have a Pro2 TX and a Pro2 Compact RX board. In the pile of things I got from him was a GY-21 temperature and humidity sensor. It has a four-wire connector on it, which fits on the I2C or SHT2X connectors on the TX board.

The GY-21 sensor board also lists HTU21 and SHT21 on the board - a good picture of it can be found at https://github.com/JonasGMorsch/GY-21

Is this supported by the WeatherDuino Pro2? I was hoping that it would "just work" as it seems to use the same HTU21 and SHT21 sensors that are mentioned in the config file, but regardless what I choose in the config file I either get values of zero for temperature and humidity, or a value of -312 for temperature and zero for humidity.

If this is supported, what should I set the values in the config file to? And which socket should I plug it into?

Best regards,

Robin
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