Arduino Leonardo Circuit

is this a viable Circuit vor an Arduino Leonardo?
I want to buy some PCBs after the Prototyping phase.

GND pin 43,35,23,15 are connected to GND but its not displayed.

Thanks vor your help guys !

What circuit?

What schematic?

hmm the Shematic wasnt displayed properly.

Then post it correctly, read the how to use this forum sticky post at the start of EVERY section.

Somehow I can see the shematic.. Here is another upload link
https://picload.org/view/daroagdr/schaltplan_v2-1a4328e1b2284940.png.html

What part of

Grumpy_Mike:
Then post it correctly, read the how to use this forum sticky post at the start of EVERY section.

Are you having trouble understanding?

right click, view image to see if at full scale.

what are the resistors and switches on ADC12/9 for?