pkerspe
commented
2 years ago Hi @Steve5656, great to hear of use cases where the library is used! Could you please provide the relevant code snippets of your variable / register declaration and describe what the acutal problem is you are facing, what is the return value of getCurrentPositionInMillimeters() in your current code?
Note: you have to call "stepper.setStepsPerMillimeter(...);" to tell the library how many steps are equal to one millimeter!
As a very basic example here an application sample snippet (without the library running as a service):
#include <ESP_FlexyStepper.h>
const int MOTOR_STEP_PIN = 3;
const int MOTOR_DIRECTION_PIN = 4;
ESP_FlexyStepper stepper;
float positionValue = 0;
void setup()
{
Serial.begin(115200);
stepper.connectToPins(MOTOR_STEP_PIN, MOTOR_DIRECTION_PIN);
stepper.setStepsPerMillimeter(100); //IMPORTANT, configure according to your stepper configuration how many steps equals one milimeter of movement
}
void loop()
{
stepper.setSpeedInStepsPerSecond(100);
stepper.setAccelerationInStepsPerSecondPerSecond(100);
stepper.moveRelativeInSteps(200);
delay(100);
positionValue = stepper.getCurrentPositionInMillimeters(); //do whatever you want with the value here
stepper.moveRelativeInSteps(-200);
delay(1000);
positionValue = stepper.getCurrentPositionInMillimeters(); //do whatever you want with the value here
}
Steve5656
Hi, I am currently using flexystepper to control a single axis for a plasma cutting application. It is all working well except I can not figure out the syntax for the getCurrentPositionInMillimeters() function. I have tried using the following to store the current position in a variable register: CurPos=stepper.getCurrentPositionInMillimeters();. However this does not seem to work? Can anyone provide some guidance on exactly what code is required to get this to work? I am using the command when the stepper is stopped. Thanks, Steve