Arduino Dolly

A clone of the Arduino Nano, but a little different.

Overview Image

calculate crystal values
- calculate load capacitors - 12pf
- inspect layout - seems fine
Research USB TVS diodes
- the ones i'm using are probably not appropriate - yeah they are for RS485. FIXED
- look into what phils lab uses or the CATS board
Look into controlled impedance traces. NOT NEEDED
- calculate for the USB port. NOT DONE
Double check USB C layout
- ground the shilding
- series termination reistors? NAH
double check vreg capacitors. NEXT TIME USE 10u ON BOTH SIDES
check all capacitor dielectrics
add a fuse?. NO
review voltage selector diode. LGTM
Make a final BOM
Make production files
Rip up traces and try alternete routing for MCU
CP2102 and others, what to do with unused pins