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Adafruit Motor Shield V2-Moteur continu (voir la source)
Version du 3 janvier 2014 à 11:59
, 3 janvier 2014 à 11:59aucun résumé de modification
{{Adafruit Motor Shield V2-NAV}}
{{Adafruit Motor Shield V2-NAV}}
== Intro ==
[[Fichier:Motor Shield V2-Logiciel-01.jpg|640px]]
DC motors are used for all sort of robotic projects.
The motor shield can drive up to 4 DC motors bi-directionally. That means they can be driven forwards and backwards. The speed can also be varied at 0.5% increments using the high-quality built in PWM. This means the speed is very smooth and won't vary!
Note that the H-bridge chip is not meant for driving continuous loads over 1.2A or motors that peak over 3A, so this is for small motors. Check the datasheet for information about the motor to verify its OK!
== Connecter les moteurs ==
To connect a motor, simply solder two wires to the terminals and then connect them to either the M1, M2, M3, or M4. Then follow these steps in your sketch
== Programmation ==
=== Inclure les bibliothèques ===
Make sure you #include the required libraries
<nowiki>#include <Wire.h>
#include <Adafruit_MotorShield.h>
#include "utility/Adafruit_PWMServoDriver.h"</nowiki>
=== Créer un objet Adafruit_MotorShield ===
Adafruit_MotorShield AFMS = Adafruit_MotorShield();
=== Un objet Moteur Continu ===
En anglais, un moteur à courant continu se dit "DC motor", d'où le nom des objects et méthodes.
Request the DC motor from the Adafruit_MotorShield:
Adafruit_DCMotor *myMotor = AFMS.getMotor(1);
with '''getMotor(port#)'''.
Port# is which port it is connected to. If you're using M1 its '''1''', M2 use '''2''', M3 use '''3''' and M4 use '''4'''
=== Connecter le moteur au controleur ===
In your setup() function, call 'begin()" on the Adafruit_MotorShield object:
AFMS.begin();
=== Initialiser la vitesse ===
En anglais, la vitesse se dit "''Speed''" d'où le nom de la fonction.
Cette fonction permet d'initialiser la vitesse par défaut du moteur (celle qui sera utilisée lorsque vous lui demanderez de tourner).
Set the speed of the motor using '''setSpeed(speed)''' where the speed ranges from 0 (stopped) to 255 (full speed). You can set the speed whenever you want.
myMotor->setSpeed(100);
=== Faire fonctionner le moteur ===
En anglais "''run''" signifie courir mais convient à toute opération à exécuter (à ''faire avancer''). D'où le
To run the motor, call '''run(direction)''' where direction is '''FORWARD''' (avant), '''BACKWARD''' (arrière) ou '''RELEASE''' (relaché, inactif). Of course, the Arduino doesn't actually know if the motor is 'forward' or 'backward', so if you want to change which way it thinks is forward, simply swap the two wires from the motor to the shield.
myMotor->run(FORWARD);
{{Adafruit Motor Shield V2-TRAILER}}
{{Adafruit Motor Shield V2-TRAILER}}