Board Revision 1

A project log for Charlieplexing 128 LEDs (8x16)

Using an Arduino board design and incorporating a 8x16 LED screen

Joshua GruppJoshua Grupp 12/03/2018 at 02:150 Comments

In the process of writing the program, I realized 2 of the pins I had assigned to control the LEDs (AD6 & AD7) were not able to be used as digital outputs.  I could wait for the boards to arrive and do some cleaver soldering to make the changes, but I'm able to re-order PCBs on for only $2 plus shipping.  I'm not moving the footprints, so I can still use solder screen they are shipping me.  I guess this is a lesson to verify your board layout before committing.