Force feedback BLDC actuator

 

 

I added force feedback feature to my BLDC actuator.

For this first test, I use a 20kg load cell and HX11 amplifier connected to my arduino pro mini.

https://www.youtube.com/watch?v=0O26WK9ZK6E

As you can see on the video, when I press the sensor, I am able to impose the angular position I want.

The behavior of the actuator is similar to a spring. next step is to try to simulate shock absorber (damper ?)

and design a torque sensor directly mounted on output shaft.


Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
Gareth's picture

Hacking the sensor

Great to see you have implemented the strain gauges ...

Here is a quick mod that can be done to speed it up to 80Hz.

Lift pin 15 off the circuit board and hotwire a jumper from the VCC line.

Bretzel_59's picture

Hi Gareth, thanks for the

Hi Gareth, thanks for the tip, I’ve already done this mod to speed up the HX711 :).

this chip is pretty cool and make load cell accessible.

I don’t understand why I didn’t use it before!