Hi...
We're trying to use 50 servos HS-422 from Hitec with 4 Adafruit 16-Channel 12-bit PWM/Servo Driver.
First, we tried with only 1 Adafruit card with 16 servos driven by a RaspberryPi with Adafruit distribution and servos are becoming mad after a very short period (servral seconds)...
Basically, they're shaking but all in the same way...
If we kill the python script, they're still shaking...
If we unplug the Raspi, they're still shaking...
If we turn of the power of the Adafruit card, they're still shaking...
If we turn of the power of the servos, they stop shacking (of course), but if we turn the power on again... they're starting shaking in the same way...
After a while, everything becomes normal (I mean, they stop shaking and we can make other tests).
The pb seems to be stronger when we try to use multiple servos at the same time.
If we put a time.sleep between action, it seems to work, but, every time, after a while, the issue reappears...
For info, if we try to use only one servo, no matter where it is plugged on the car, it works...
What did we miss ?
What should be the C2 value of the capacitor on the Adafruit board in our situation ? (do we need one ?)
Has anyone already encountered the same problem ?
Thanks for any advices...
Cheers...
Labomedia's team
(sorry for our english)