I have quite a few brushless motors and I have a bunch of nice expensive ESCs, but those ESCs are one-directional; they are for driving airplane propellors, so they can’t be reversed.
I need something that is more like a car ESC that can drive my motors forward and back. I see a lot of interesting options, like:
But I can’t tell if they are also uni-directional or whether they can turn the motor in both forward and reverse.
Preferably, whatever I choose should work well with ESP32 and/or Arduino.
Hi mzincali,
Those are standard drone ESCs so they will be unidirectional.
What you want is a Car or Truck ESC.
As for compatibility, anything that is RC can be controlled via Arduino with the Servo library.
Here is a little library I put together a while ago but it’s essentially the Servo library with a layer on top of it.
https://www.arduino.cc/reference/en/libraries/rc_esc/
All the best,
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I’m finding that my brushless motors aren’t very good at starting up or changing directions, at lower speeds. There’s some hesitation. I bought more out-runners, but they have the same problem. I think I should have bought sensored motors and ESCs instead, since they are supposed to be better at sensing the direction they are starting up in.
A couple of things to consider for low speed is the amount of Pole as well as Sensored motors.
Here is a article i found online about Cogging and Brushless motors.
https://www.radiocontrolinfo.com/brushless-motor-cogging-explained/
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