Re: Need help with PI PICO...

In message <utv5e7$29onh$2@dont-email.me>
          The Natural Philosopher <tnp@invalid.invalid> wrote:

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

Are you sure the sensor isn't malfunctioning as a result of being in
oil vapour?

David