You could try posting picture and giving a bit more information. What exactly did you do? What did you expect? What did you observe? What have you tried regarding fixing it?
Some stud finders use capacitance to locate wooden studs behind drywall, based on the difference between the dielectric constant of air and wood.
I'm wondering if a Teensy could be made into a stud finder by adding...
Paul diagnosed why long runs of APA101 LEDs don't perform at high speed. How complicated would it be to make a circuit that gets inserted every 100 or so LEDs to clean up the clock signal?
For most projects, keeping...
I guess this is possible
What makes you think the keyboard controller is the problem and not the switches or a trace in common between the failing switches?