Hi,
Had a search and can’t find a solution so I thought Id give the forum a go…
Im using the accelstepper library but I want a constant speed - I see that I need to use runSpeed() - however this appears to run indefinitely… is there a way to use moveTo at the same time?
Or is the only way to use something like …
if(stepper.currentPosition== desired position){
stop()}
My current code looks like this if it helps
String incoming = ""; // Data received from the serial port
String letter = ""; //resulting letter from the string
String valString = ""; //value before its converted to an int
int incomingVal = 0; //incoming value before its assigned to another variable
int valA = 0; //variables for motorspeed, pos etc
int valB = 0;
int valC = 0;
int runFlag = 0; //Run the stepper
int startTime; //for calc speed
#include <AccelStepper.h> //add library
AccelStepper stepperH(1, 2, 3); //attach stepperH to pins 2+3
void setup() {
Serial.begin(9600); // Start serial communication at 9600 bps
Serial.setTimeout(5); //reading the serial takes 3ms - if this isnt hear it will take 1000ms
stepperH.setMaxSpeed(900); //set values - CHANGE TO LOOP
//stepperH.setAcceleration(999);
}
void loop() {
// Check if
if (Serial.available()) {
startTime = millis();
incoming = Serial.readString();
valString = incoming; //copy incoming string so we can delete the number and letter seperately
incoming.remove(1); // remove everything but the first character to get the letter
letter = incoming;
valString.remove(0, 1); //remove the first character from the string to get the number
incomingVal = valString.toInt(); //convert string to int
if (letter == "A") { //assign the value to the correct variable
valA = incomingVal;
stepperH.moveTo(valA);
}
else if (letter == "B") {
valB = incomingVal;
stepperH.setSpeed(valB);
}
else if (letter == "C") {
valC = incomingVal;
}
else if (letter == "R") { //if recieved R then run
runFlag = 1;
}
else if (letter == "S") { //if recieved S then stop
runFlag = 0;
Serial.println("Stopped");
}
else if (letter == "I") { //if recieved S then stop
Serial.print("Current position = ");
Serial.println(stepperH.currentPosition());
}
else if (letter == "X") { //reset the board
Serial.println("Resetting Board");
delay(500); //delay so that the print can finish
void software_Reset(); {
asm volatile (" jmp 0");
}
}
else {
Serial.println("Incorrect Code!"); //if its not one of the recognised letters
} //Print out the values after one is changed
Serial.print(valA); Serial.print("--"); Serial.print(valB); Serial.print("--"); Serial.println(valC);
}
if (runFlag == 1) { //if run command was sent
stepperH.runSpeed(); //run stepper
//Serial.println(stepperH.currentPosition()); //print current position
if (stepperH.currentPosition() == valA) { //if the stepper has reached destination
runFlag = 0; //turn off run flag
Serial.println("Move complete");
}
}
}
Thanks for your time,
Andrew
