Hi, I am quite fresh in the world of arduino and need some tips. Can someone help me out choosing equipment for a simple DC motor feedback control setup? I have background from cybernetics(control theory, robotics and programming) and electrical engineering, so I have quite good knowledge of feedb…

hawkman384: My plan is to apply various control methods for the DC motor. You have to tell us how you want to control the motor? If you just want to control the speed then all you need is something that gets triggered every revolution - perhaps a reflective optical sensor (QRE1113) detecting a …

hawkman384: Yes, I am thinking about only controlling speed In that case, was my suggestion helpful? ...R

Yes Robin, thank you! :slight_smile: Maybe I will try this method. I guess that is the easiest way since I already have a DC motor (without encoder). I guess this will be quite unaccurate for low RPM? Do you have any suggestions for "simple setup" if I also want to control the angle?

Hello, Have you check this page? Access >> here

hawkman384: Yes Robin, thank you! :slight_smile: Maybe I will try this method. I guess that is the easiest way since I already have a DC motor (without encoder). I guess this will be quite unaccurate for low RPM? What do you mean by "low RPM"? You could have detection marks at more than one pl…

Nielyay yes I have checked that one out. Good tips for components, but it's an open loop control example. Yes Robin I know, I was just thinking it takes many marks to get good precision for low rotor speed (RPM), but I guess it's fine :slight_smile: My reason for this post was how to get speed mea…

hawkman384: I have thought of using the frequency measurement setup of starter projects to measure speed of the DC motor without encoder, but don't know if this will work... Oddly enough a DC motor doesn't have a frequency to measure, being DC. For low speeds, speed control requires position co…

I know the difference between AC and DC, I meant frequency as in rotor speed :slight_smile: I was thinking of measuring frequency of noise made by the DC motor. I know that position measurement (encoder or other) is needed for accurate PID control of position. The intention of this topic was to be …

hawkman384: Yes Robin I know, I was just thinking it takes many marks to get good precision for low rotor speed (RPM), You still have not told us what you mean by "low RPM" - put numbers on it. My simple one-pulse-per-revolution detector allows me to keep the speed of a small DC motor +/- 1% at…

Equipment for simple feedback control of DC motor

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hawkman384 October 29, 2018, 10:27am 3

Yes, I am thinking about only controlling speed

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Equipment for simple feedback control of DC motor

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