Re: Need help with PI PICO...

On 26/03/2024 18:16, Ahem A Rivet's Shot wrote:

On Tue, 26 Mar 2024 17:33:50 +0000
Jim H <invalid@invalid.invalid> wrote:
 

Assuming the "oil" you're talking about is kerosene/heating fuel, the
speed of sound is 1330 m/sec so 0.5cm takes 3.76 micro-sec.

  I would have thought it's measuring the distance to the surface of
the oil from above the oil so it would be the speed of sound in air that
matters 300m/s.
 

Correct, Mrs Shot.
Anyway it's died within 30 minutes of going back on 'short echo'...
So its definitely sensitive to that in some way.
I'll add more debug code tomorrow
--
When plunder becomes a way of life for a group of men in a society, over the course of time they create for themselves a legal system that authorizes it and a moral code that glorifies it.
  Frédéric Bastiat