Hi Guys,

Long time lurker of this excellent forum but now I could do with a little help if you don't mind,

I'm running Astroberry/Ekos on a Rpi 4b and have recently installed the Servoblaster Cap system via the instructions here... www.indilib.org/support/tutorials/165-di...e-cover.html?start=1
However I just can't seem to get the servo to respond other than the occasional bit of jitter. I have an oscilloscope and have scoped GPIO 17 (which is what the servo is connected to) and I can see a PWM signal but the signal appears unstable and weak.
I've tried the same setup on an old Rpi 3b and it works ok on that, albeit a bit jittery.

Ps, the servo has a dedicated 5V power supply.

Has anyone managed to get ServoBlaster running on a Rpi4b and if so were there any special settings required that I may have missed? any help would be much appreciated.


Regards,

Rich