Humidity sensor

[Dom59]

Hi Rob,

 My humidity sensor allways shows 1° and 1%. It was ok at beginning. I have change the sensor without result. Any idea what about that?

Thanks
Dom.

[Rob F]

Hi Dom, that's different, did you check the voltage on the USB jack? Should be 5v on 2 pins. The sensor uses pin 33, check to make sure you have 5v there as well. If you have access to the sensor pins check voltages there as well.

[Tupac]

Hey Dom,

I ran into that same issue a few times.  For me it was caused by applying the incorrect voltage to the sensor, the temp would still read accurately but the humidity would always read 1%.

I would try and run just the humidity sketch to see if the values change, if they remain at 1% chances are you need to replace the humidity sensor.

Best of luck!

[Dom59]

I changed sensor without success. As Rob suggests, i will check voltage, but not before next weekend...