Hello, I have searched the Forum and I kept on seeing that macros is something that allows the driver to push a button and then the robot will for example move it’s arm to a certain hight. I am fairly new to coding and I am using C++ in VCS. I was wondering if anyone could explain to me how to do wr…

First you’ll need a sensor on whatever motion you are measuring. The encoder in the motor works, but in some cases you might want a potentiometer for more accuracy. some pseuocode for that could be: when button push{ while pot != desires position range{ move arm at ((pot - desired) / x) speed …

could you explain what the code does, like what “pot” is

pot is an acronym for potentiometer. My pseudocode says ‘when you push a button, go into a loop until the desired potentiometer value is reached. In the loop, power the motor proportional to the distance the arm has to go to reach the desired position’

do you know how i could possible do the same, but without a potentiometer?

well you need sensor data from somewhere, if you are just using a quadrature or the motor encoder you can do the same thing but with the value from the encoder from the point of the starting position.

so it would be something like coding an autonamas?

I’m not sure what you mean. Yes, these macros are great for autonomous but an autonomous is not sensor data. Without the sensors, you can’t tell where your arm is at any given point. I prefer potentiometers because they are precise and it doesn’t matter what starting position it is at. With quad…

Oh, ok I get it. Sorry for the confusion and all of the questions, but if I use a potentiometer, do I place it on the axle that is going to move. And can I place that sensor on a high strength axle?

As of now the potentiometer can only fit on normal axles. Yes, whatever sensor you use has to be on the moving axle in order to measure its movement.

hmm, ok because I am using a high strength axle, would you know any other solutions. an example program would be great.

Macros Help

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theol0403 September 12, 2019, 4:22pm 16

Check out this thread, which has a very similar question: