I am really stoked ! ![:)]( "Smile")
)
Thanks ghp for pointing me in the right direction - GND.
It was so unlikely in my mind.... that I really did not investigate this or test this until your post.
So before delving into making the schematics, I had to test this somehow.
So I connected every spare wire (jumper) I had to beef up all the GND connections already existing on the breadboards, as well as more of the pico's GND pins.
And lo and behold - the offset went down from 100 mV to 30 !! And the noise was also almost gone.
This was it. GND was somehow not good, which probably caused the pico smps to falter.
Last test was to connect the battery's negative pin with a large wire directly to pico GND.
And that was it. 0mV. No offset. No noise. No bumps.
Amazing.
I simply couldnt accept that this could somehow be the cauae before your post.
Thanks again !![🙏]()
![😊]()
)Thanks ghp for pointing me in the right direction - GND.
It was so unlikely in my mind.... that I really did not investigate this or test this until your post.
So before delving into making the schematics, I had to test this somehow.
So I connected every spare wire (jumper) I had to beef up all the GND connections already existing on the breadboards, as well as more of the pico's GND pins.
And lo and behold - the offset went down from 100 mV to 30 !! And the noise was also almost gone.
This was it. GND was somehow not good, which probably caused the pico smps to falter.
Last test was to connect the battery's negative pin with a large wire directly to pico GND.
And that was it. 0mV. No offset. No noise. No bumps.
Amazing.
I simply couldnt accept that this could somehow be the cauae before your post.
Thanks again !
Statistics: Posted by djinng — Thu Mar 07, 2024 3:00 pm