RESOLVED :
in the same windows : GRBL.ino was open
hello,
sketch is original in exemple from this site web .
I don’t understand why it use libraries/grbl/stepper.c.o
/*
Stepper Motor Control - speed control
This program drives a unipolar or bipolar stepper motor.
The motor is attached to digital pins 8 - 11 of the Arduino.
A potentiometer is connected to analog input 0.
The motor will rotate in a clockwise direction. The higher the potentiometer value,
the faster the motor speed. Because setSpeed() sets the delay between steps,
you may notice the motor is less responsive to changes in the sensor value at
low speeds.
perso Andre 33 :
Connecter le moteur sur les pins (8 9 10 11)
Il semble que le courant disponible soit trop faible pour permettre le mouvement du chariot;
le moteur fonctionne normalement sans charge.
cf : https://www.arduino.cc/en/Tutorial/StepperSpeedControl
le circuit ULN2004A est nécessaire avc une alimentation externe
Created 30 Nov. 2009
Modified 28 Oct 2010
by Tom Igoe
*/
#include <Stepper.h>
const int stepsPerRevolution = 200; // change this to fit the number of steps per revolution
// for your motor
// initialize the stepper library on pins 8 through 11:
Stepper myStepper(stepsPerRevolution, 8, 9, 10, 11);
int stepCount = 0; // number of steps the motor has taken
void setup() {
// nothing to do inside the setup
Serial.begin(115200);
}
void loop() {
// read the sensor value:
int sensorReading = analogRead(A0);
// map it to a range from 0 to 100:
int motorSpeed = map(sensorReading, 0, 1023, 0, 100);
// set the motor speed:
if (motorSpeed > 0) {
myStepper.setSpeed(motorSpeed);
// step 1/100 of a revolution:
myStepper.step(stepsPerRevolution / 100);
}
}
error message contents :
HardwareSerial0.cpp.o (symbol from plugin): In function `Serial':
(.text+0x0): multiple definition of `__vector_19'
/var/folders/5j/4mcztk1n40j4fpz02vrkqlww0000gn/T/arduino_build_536971/libraries/grbl/serial.c.o (symbol from plugin):(.text+0x0): first defined here
collect2: error: ld returned 1 exit status
Utilisation de la bibliothèque Stepper version 1.1.3 dans le dossier: /Applications/Arduino 1.8.1.app/Contents/Java/libraries/Stepper
Utilisation de la bibliothèque grbl prise dans le dossier : /Users/mynameXXX/Documents/Arduino/libraries/grbl (legacy)
exit status 1
Erreur de compilation pour la carte Arduino/Genuino Uno
Thanks