Bad Distance Results

[GrandPete]

@ARahmani

just heard the diffrence to the normal tone

of course, so you are hearing a sound maybe from electrical noise and not from the ultrasonic transducer, that was my idea.

@ARahmani

Ill let you know when i tested

wish you it works!

[TomGeorge]

@ARahmani

@TomGeorge

Are the two pins used by the ultrasonic also used by the ethernet shield?

as you can see on the picture above in my first post i just connected all cables to the ethernet shield pins, so yes

I mean are the pins you use for the ultrasonic being used by the shield for signals as well.
If so then the ultrasonic signal will be compromised.

Get the schematic of the shield and find out if any of the shield components use those pins.

If they are then use the schematic to find pins that aren't used by the shield.

Do you see what I mean?
You cannot have a pin that is used for two different functions.

Tom..

[TomGeorge]

@ARahmani

Ethernet Shield W5500

Found this for your shield.

If you are using pin8 and pin9 then you are okay connection wise by the look of it.

Have you measured the supply voltage AT the ultrasonic unit when it is operating?

Tom...

[Paul_KD7HB]

@GrandPete

of course, so you are hearing a sound maybe from electrical noise and not from the ultrasonic transducer, that was my idea.

Could be something with a "sympathetic vibration".

[ARahmani]

@GrandPete

of course, so you are hearing a sound maybe from electrical noise and not from the ultrasonic transducer, that was my idea.

which kind of electrical sound lol. There is a Tranducer and an Emitter at the US Sensor. The Sound comes of course of the housing where the acoustic waves gets generated. Cable brand or short curcuit sounds diffrent lol.
Kinda konfusing your comment tbh

@TomGeorge

I mean are the pins you use for the ultrasonic being used by the shield for signals as well.
If so then the ultrasonic signal will be compromised.

@TomGeorge

Have you measured the supply voltage AT the ultrasonic unit when it is operating?

i try on monday with a oszilator. A collegue but already said, that its not the voltage because in paralell itll be const. It will be the current for sure he said.

@Paul_KD7HB

Could be something with a "sympathetic vibration".

like i said, it sounds like the typical US sound u hear , jsut with the diffrence exremely loud and then skrilly, not constant

[GrandPete]

@ARahmani

Kinda konfusing your comment tbh

let's say it is my english!

@ARahmani

it sounds like the typical US sound u hear

ok, was not my english.

I hope you will fix your programming issue.

[ARahmani]

i got the solution. The delay at the end in the client loop overwrites the US with too much data. If cou pick the delay and just put it out of the loop the sensor has enough time to compute the correct results because from measuring to giving out data it need at least 60ms. Also the weird sounding of the sensor dissapeared and normalised.

Case closed