Joshua GruppAll files can be found here
0%
0%
Charlieplexing 128 LEDs (8x16)
Using an Arduino board design and incorporating a 8x16 LED screen
Using an Arduino board design and incorporating a 8x16 LED screen
All files can be found here
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 jlcpcb.com 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.
Happy Thanksgiving to everyone. Since I had time off from work, I finalized the design and ordered the boards from JLCPCB.com and the parts from it's sister company LCSC. When I get some time later, I'll update the component list for the PCB. I ordered 10 PCBs and parts to make 5 of them. I know that's a little overkill. I only need one functioning board for testing, but 5 boards cost me the same as 10. Also, by the time I order parts for 1 complete board, it barely cost anymore to get parts for 5 total, so why not. I'll have 5 boards left over just in case someone wants one.
Michael Welling
David
PCB designer