ShiftPlusOne wrote: The zero reading is entirely a software thing. I think the python library just returns 0 when the reading is not ready.

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from what i can tell, the first time you read the temperature from pressure, the value will be 0. Anytime after that should be the correct value.

just bought a third one and this one is working properly. 3rd time is the charm i guess...

Could I also get the output of these commands? sudo dtoverlay i2c-gpio i2c_gpio_sda=2 i2c_gpio_scl=3 i2cdump -r 0x00-0x3f -y 3 0x5f b Running them will prevent I2C from working until you reboot, so don't forget to do that. Here's my output...I believe as it's the same as before pi@rpi3:~ $ i2cdump ...

Davespice wrote:Hmm, I think we need to investigate this. Would anyone volunteer to send us one of their Sense HATs for analysis?

i'll send mine out. just pm me the address.

Thanks!

below is my output: pi@rpi3:~ $ python -c 'from sense_hat import SenseHat > sense = SenseHat() > temp = sense.get_temperature() > print("Humidity sensor temperature: %s C" % temp)' Humidity sensor temperature: -397.54498291 C pi@rpi3:~ $ i2cdump -r 0x00-0x3f -y 1 0x5f b 0 1 2 3 4 5 6 7 8 9...

I have also have the same issue. I bought another because i thought it was broken. both of them reflect a high negative #.

Anyone have any thoughts on this?