Yup. ASCII table worked. A few random LEDs lit up too. Likely due to noise. What's next?
2) same as scenarios 1 but chip 1 is separated from the others = unresponsive
They aren't related. With the ASCII program, a few random LEDs light up due to noise.
I guess becuase that 10k resistor isn't there holding the latch pin down..
... but that's irrelevant.
... a scenario where random LEDs light up and stay on, unprompted. Not always the same ones. Due to noise.
With the main program, the whole thing is unresponsive to commands (only when wired correctly).
For the thousandth time, it does work, but not with the recommended wiring.
For the thousandth time, it does work ...
I would have put back the "chaser" sketch (somewhere in the last 7 pages) and just leave that running and observe and probe until I worked out what was happening.
..."the same diagram, but without all but one cap, without 5v line from arduino and with a 220ohm resistor on the +- rail, works perfectly. "
So it was working all along?Well I'm glad it's all going now.
This configuration doesn't bring anything to mind? I have to put a resistor from + to -. Is there a common scenario that causes you to need to do that? What scenario would make adding more caps cause more noise instead of less? What scenarios would make adding 5v to a circuit make that circuit unresponsive?