Hi All,
I've built a quad using the Arducopter m2mPower ESCs from here:
https://store.diydrones.com/ArduCopter_ESC_20_Amp_p/ac-0004-08.htm
I'm driving them with my own custom flight controller, and I'm wondering if anyone here might know the max PWM (input) rate these will support. I've asked 3D Robotics but haven't heard back so I'm hoping someone here might know. I'm currently running them at 50 Hz (with marginal results), but I keep hearing good things about running multicopter ESCs at rates up around 400 Hz. Anyone know what the default Arducopter PWM input rate is?
Thanks in advance,
Rick
Replies
Without the SimonK firmware, increased input rates beyond a certain point will have little effect. This is because original airplane firmwares averages inputs to give you a smooth throttle control, Meaning that rapid input changes will not show up on the output. Heck, it even says so in the store product description.
The default is 400 I think, but I've tested them up to 490. And yes faster output = faster PWM and more control. A lot of folks don't believe that, but they don't take into account the large filter on the ESC PWM input, which adds a lot of delay. You can also flash these ESCs and remove the digital filter.
Jason