Tolerate misbehaving desks

[DavidVentura]

Hi
I was getting really erratic behavior from this tool, so I added debug info on the _bytes_to_meters_and_speed function and the 2nd byte was always stuck at 0xff, basically reporting my desk was at ~7meters:

$ idasen height
['0x17', '0xff', '0x0', '0x0']
7.150 meters

After lowering my desk all the way to zero, it started reporting proper values and idasen starting behaving well again.
In the meantime, I had asked it to save my position with idasen save stand and it "corrupted" the configuration, by storing a 7m height.

I think that

• there should be a warning by the tool if the second byte is 0xff
• invalid heights shouldn't be saved to the config

[newAM]

For future reference do you have the stock controller or a modded one?

[DavidVentura]

stock