Time keeping with utime

[Roberthh]

Did you pull GPIO0 to GND and push reset before starting esptool.py?

[priis]

I cannot find the right way to do it.
I tried NodeMCU Pyflasher.
The console says
Connecting............................................._____
for a few seconds - but after that nothing seems to happen.
I also tried
esptool.py --port COM7 write_flash -fm dio 000000 esp32-20180927-v1.9.4-584-g57a7d5be9.bin
only resulting in an error message:
serial.serialutil.SerialException: could not open port 'COM7'

[priis]

....I also tried flash download tool v3.6.4. which also fails with a chip sync error:
Invalid head of packet ('\x08').
Will I ever get the firmware updated?

[priis]

My hardware is pycom go invent wipy
wifi bluetooth
fcc id: 2ajmtwipy3a
model:wipy3.0
ic: 22263-wipy3r

[Roberthh]

If you use a Pycom WIPY3, you should use the pycom firmware and updater tool: https://pycom.io/downloads/
The respective forum is at forum.pycom.io.
You can of course also use the firmware of micropython.org, but that does not match well with pysense, and you would have to adapt the drivers.

[priis]

It worked - after changing high speed transfer to a baud rate of 115200!
I'm so grateful for your help, Roberthh!
I do still have a lot of problems but I've better start separate threads....