If the temperature reading on my Enviro Grow is always -40 and all the other values seem OK, does that mean the temperature sensor is borked?
Probably, most likely yes. If it was me I’d flash_nuke it
Raspberry Pi Documentation - Raspberry Pi Pico and Pico W
and start over by reflashing the firmware.
If the issue doesn’t go away then its a hardware fault.
You can e-mail Pimoroni Tech Support before you do anything, if you want to see what they say.
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