frischluft-works / frischluft-firmware

The firmware for frischluft.works Written in micropython.
Apache License 2.0
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MH-Z19 sensor somehow locked up #6

Open pkern opened 3 years ago

pkern commented 3 years ago

Thanks for open sourcing the firmware. I managed to flash it and on the first iteration it worked. But now after another reboot I only get "garbage on the UART", which seems to be no data at all. The sensor is blinking regularly. One thing I could imagine is that it briefly ran just on USB power rather than the power supply - while I was trying to power cycle it, could that have something to do with it? Is there something I can do to debug the connection?

The board was preassembled and contains a WROOM-32.