Servos jitter when serial reads

[kivig]

Thanks for replies!

It looks like the servo library uses timer interrupts to pulse the servo, which would be delayed if serial interrupts fired.

It certainly should be possible to do the PWM in hardware (using the timers directly) rather than via interrupts, then it would not be affected by serial comms. Probably someone has already done this, but I don't have a link to hand.

Found "PWMServo", that says to control up to three servos on Mega, not sure about Nano that I'm using though. Anyway it's not really enough for RC.

Guess my project fails here. On the other hand I suppose I could use a few Attiny85 to offload PWM if they support servo library functionality...

Edit: there's servo library for Attiny: » ATtiny45/85 Servo Library Cunning Turtle