I assume this is for CL. They won't have regulated speed the way that the high-end brushless ESCs do -- that's because speed measurement more or less comes for free with a brushless ESC, while measuring the speed of a brushed motor takes external sensors or Weird Science.
I believe that for stunt you'd want to gear the motors down. And I seem to recall Dean or Bob Hunt or some other person who was involved with early electric CL experiments mentioning that gearboxes don't seem to stand up well to CL stunt. This isn't because there's any inherent reason that it can't be done, but rather because CL stunt induces a lot of gyroscopic precession on the prop, which puts a lot of twisting load on the output shaft, and there just aren't gearboxes made for it.
Will Hubin has a sport timer that's designed for ESCs without regulation, that increases the throttle during the flight. It's b'guess and b'gosh (but engineers call it "open loop", to raise the falutin' index), so it's definitely not as good as regulation.
Keith Renicle's timers may work if you use a Hall sensor with a magnet in the spinner. You'd have to ask Keith if he thinks it'd pick up the 5V signal from a Hall sensor, and you'd have to make up the circuit to turn the Hall sensor signal into something compatible.
My timer's hardware has the necessary circuitry to deal with a Hall sensor, built in. However, I haven't gotten around to writing a speed regulation algorithm into it. Doing so, however, is toward the top of the to-do list. If you want one of my timers and can wait for it, I can supply you with one that has regulation from a Hall sensor.
Topic: brush type ESC? (Read 1706 times)
