PiTone-v2-by-Eddy71 Has anyone on here built this ?

[David_1]

can someone translate this comment over the damping resitor array R3,R4,R7 to R18?
instead of placing parallel 3x1k it it also legit to use single 1-3W 330R resistor, or a 5W wire pot for tuning the damping resistor
but what is the relationship to R18?

The words seem to say coil settings ?

[bernte_one]

can someone translate this comment over the damping resitor array R3,R4,R7 to R18?
instead of placing parallel 3x1k it it also legit to use single 1-3W 330R resistor, or a 5W wire pot for tuning the damping resistor
but what is the relationship to R18?

[Eddy71]

We'll soon find out if this is right. After turning on the device

[David_1]

I like things drawn a little different, so I redrew Eddies drawing, its almost Identical your thoughts ?

[David_1]

am I right in thinking these are very similar but with different micros ?

[David_1]

HEY this looks better

[David_1]

no clue how to make them appear in post but there is my pcb, being made as we read this by jlspcb, in a week or so I will let you know what arrives

[David_1]

why you draw the pcb? there is a a layout you can use already, Eddy71 on forum

Drawing a pcb for me is easy, his PCB has a documented error, so I do not need that and I do not want the motor vibrator function either.
I have code so a new pcb seems best

[bernte_one]

why you draw the pcb? there is a a layout you can use already, Eddy71 on forum

[David_1]

https://www.seeedstudio.com/Metal-Detector-PiTone-v2-by-Eddy71-g-1226359

no clue why I have taken a liking to it, but I am just starting to draw the PCB
David