I would like my program to make my steppers have a slowish ramp-up to full speed. I’m using the stock program in the ArduinoCode library with a potentiometer. Can I get some suggestions on how to program this capability?

Dave X, where should I insert the untested code? It says StepCount was not declared in this scope.

Oh, you don't need stepCount. It was leftover from fiddling with this code: arduino-libraries/Stepper/blob/master/examples/stepper_speedControl/stepper_speedControl.ino /* Stepper Motor Control - speed control This program drives a unipolar or bipolar stepper motor. The motor i…

Sorry to say, adding that piece of code had no affect. Here is the code as presently configured: orry to say that bit of code did not lead to a motor ramp-up. Here is the completed program: #define potmeterPin A0 // defins pins numbers const int stepPin = 5; const int dirPin = 2; const int enPin…

If you want to use ramping you need add a way to calculate the ramping. Somewhat like the adjustSpeed() function in #6, but since your code isn't using stepper.h's speed/step stuff, you need it to calculate and update delay_time. Something like: int stepperSpeed =0; void adjustSpeed(int targetSte…

Im using a cheap Chinese 3.5 amp/phase driver. Im not using the enable function.

[image] DaveX: #define potmeterPin A0 // defins pins numbers const int stepPin = 5; const int dirPin = 2; const int enPin = 8; int p; float delay_time = 50; void setup() { Serial.begin(9600); // sets the two pins as Outputs pinMode(stepPin, OUTPUT); pinMode(dirPin, OUTPUT); pinMode…

I changed the stepper resolution and increased the max_speed value and got the speed I was looking for. The pot doesn't work but that is OK. thank you

So it looks like it should reach 300RPM: 300RPM*200Step/rev/(1min/60s)=1000steps/sec which is less than the maps's 1023steps/sec I tried to see how fast it would go, and changed a few ints to longs or unsigned longs, and didn't check the pot and recalculate each step and got the code to work above …

stepAsNeeded() is declared to return an integer but you don't consistently return an integer - have you got compiler warnings turned on? Well worth doing so and reading them!

Ramp up to speed for steppers

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DaveX January 20, 2024, 4:43pm 14

Ah. I tried guessing at your setup from your #11 code, and wasted some time debugging enPin.

These things would be easier and quicker if folks followed these forum guidelines.

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Ramp up to speed for steppers

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