Trying to get the servo example to run a servo test on the TLC5940. Eventually to run up to 16 servos.
I cannot get any action at all, even though I redone the wiring a few times, and changed chips in case one was bad.
Using this wiring, which seems common place to other examples: http://letsmakerobots.com/node/35677
Attached is a photo of my set up. Hope its not too messy to get a idea of the wiring. Again, following the link above example.
I’ve tried several servoes (I have a batch of 16 sg90 servos waiting to wire up). I also ran the plain Arduino servo example without using the TLC5940, and that ran fine.
I don’t have an oscilloscope, however using the multimeter shows no voltage fluctuation (pwm) signal at all on the servo signal wire; so it looks like nothing coming from the OUTPUT pin to the servo signal wire (orange).
Using external wall wart through the regulator and have a good 5+ to the servo power pin.
Appreciate any help.