Hello,
I am trying to turn a rotary switch of a heater "Vaillant" (see image: the one in the bottom).
I want to know if the 28BYJ-48 Stepper Motor Torque is sufficient to make turn the switch or not.
I can't try it because I will fly home and take the motor and arduino with me to make the project there.
Thanks for your help!
Malek
Stepper motor not appropriate. You want a servo motor.
Thanks a lot!
Can you please recommend me one for my application?
No, sorry, I'm not an expert in the models of servo motor that are available. But I know enough to know that is the kind of motor you want for this project.
There may be experts on this forum who can tell you the torque that different servo motors produce, but it unlikely that anyone here has the same model of heater and can tell you the torque needed to move that control.
However, it looks to me like it might simply be a potentiometer behind that control and not a rotary switch. Is it? Is the movement smooth or does it click between positions? If it is a potentiometer, even a small, low cost servo will have enough torque.
Thank you for your reply!
I think so. I'll buy a low cost servo. It has like 2.5 kg-cm torque. That should be enough.
Actually I'm trying to control the temperature of heater with a mobile application using Wifi.
While you are still near the "Vaillant" try to attach a lever. With some elastic bands see how much they stretch when attached to the end of you lever (stick) and rotate the knob. That will give you a rough estimate of what is needed.
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