Made by baldengineer
The only Arduino designed for healing (probably not). Okay, but it is designed for teaching.
16th August 2018
OSH Park Custom fabricated PCB
Many Pretty. Many Thanks. Can be yours with this magic link: https://oshpark.com/shared_projects/0KdwuVh6
3.3 300mA LDO with an enable pin. Despite what one page says, the "enable pull-down resistor" disables the regulator.
It's the brain. So many brains.
KiCad 5 Schematic and PCB with "final" design.
Part numbers with reference designators. I did not specify part numbers for the headers or LED.
This code cycles through analog or digital pins, turning them on and off one at a time. Originally written with direct port manipulation, but slower sample rate logic analyzers will miss some edges.