arduino怎样才能使L298上的电机驱动

at97 发表于 2012-10-6 13:50:08

本帖最后由 at97 于 2012-10-6 13:54 编辑

由于本人是新手，刚买回来ARDUINO 和L298板。不知道怎么接线,怎么去驱动电机。希望你们多多帮忙。最好有代码一起来说说。

nengcai0313 发表于 2012-10-6 15:23:47

本帖最后由 nengcai0313 于 2012-10-6 15:34 编辑

你最好拿个L298N的手册看下，很简单的，电机接电机，电源接电源，输入接输入。

at97 发表于 2012-10-6 16:26:05

nengcai0313 发表于 2012-10-6 15:23 static/image/common/back.gif
你最好拿个L298N的手册看下，很简单的，电机接电机，电源接电源，输入接输入。

我按这图来接，但是连接后把代码放进去不行，不知那怎么写

at97 发表于 2012-10-6 16:27:50

代码是这样
//motorA
int dir1Pina=2;
int dir2Pina=3;
int speedPina=9;
//motorB
int dir1PinB=4;
int dir2PinB=5;
int speedPinA=9;
unsigned long time;
int speed;
int dir;
void setup(){
pinMode(dir1PinA,OUTPUT);
pinMode(dir2PinA,OUTPUT);
pinMode(speedPinA,OUTPUT);
pinMode(dir1PinB,OUTPUT);
pinMode(dir2PinB,OUTPUT);
pinMode(speedPinB,OUTPUT);
time=millis();
speed=0;
dir=1;
}
void loop(){
analogWrite(speedPinA,speed);
analogWrite(speedPinb,255-speed);
// set direction
it(1==dir){
digitalWrite(dir1PinA.LOW);
digitalWrite(dir2PinA.HIGH);
digitalWrite(dir1PinB.HIGH);
digitalWrite(dir2PinB.LOW);
}else{
digitalWrite(dir1PinA.HIGH);
digitalWrite(dir2PinA.LOW);
digitalWrite(dir1PinB.LOW);
digitalWrite(dir2PinA.HIGH);
}
if(millis()-time＞5000) { 这里出错，不知道怎么改？？？
time=millis();
speed +=20;
if(speed＞255){
speed=0;
}
if(1==dir){
dir=0;
}else{
dir=1;
}
}
}

小猪会轮滑 发表于 2012-10-6 17:04:49

at97 发表于 2012-10-6 16:27 static/image/common/back.gif
代码是这样
//motorA
int dir1Pina=2;

你代码打错了把 ‘ int speedPinA=9;
’这句

//motor B
int dir1PinB =4;
int dir2PinB =5;
int speedPinB=10;
unsigned long time;
int speed ;
int dir;
void setup(){
pinMode(dir1PinA,OUTPUT);
pinMode(dir2PinA,OUTPUT);
pinMode(speedPinA,OUTPUT);
pinMode(dir1PinB,OUTPUT);
pinMode(dir2PinB,OUTPUT);
pinMode(speedPinB,OUTPUT);
time = millis();
speed =0;
dir =1;
}
void loop(){
analogWrite(speedPinA,speed);
analogWrite(speedPinB,255-speed);
//set direction
if (1 == dir) {
digitalWrite(dir1PinA,LOW);
digitalWrite(dir2PinA,HIGH);
digitalWrite(dir1PinB,HIGH);
digitalWrite(dir2PinB,LOW);
} else{
digitalWrite(dir1PinA,HIGH);
digitalWrite(dir2PinA,LOW);
digitalWrite(dir1PinB,LOW);
digitalWrite(dir2PinB,HIGH);
}
if (millis() - time > 5000){
time = millis();
speed += 20;
if (speed>255){
speed=0;
}
if (1 ==dir){
dir=0;
}else {
dir = 1;
}
}
}

at97 发表于 2012-10-6 17:16:18

小猪会轮滑发表于 2012-10-6 17:04 static/image/common/back.gif
你代码打错了把 ‘ int speedPinA=9;
’这句

我打错了，现在这个是修改黑马的
// motor A
int dir1PinA = 2;
int dir2PinA = 3;
int speedPinA = 9;

// motor B
// motor A
int dir1PinB = 4;
int dir2PinB = 5;
int speedPinB = 10;

unsigned long time;
int speed;
int dir;

void setup() {
pinMode(dir1PinA, OUTPUT);
pinMode(dir2PinA, OUTPUT);
pinMode(speedPinA, OUTPUT);
pinMode(dir1PinB, OUTPUT);
pinMode(dir2PinB, OUTPUT);
pinMode(speedPinB, OUTPUT);

time = millis();
speed = 0;
dir = 1;
}

void loop() {
analogWrite(speedPinA, speed);
analogWrite(speedPinB, 255 - speed);
// set direction
if (1 == dir) {
digitalWrite(dir1PinA, LOW);
digitalWrite(dir2PinA, HIGH);
digitalWrite(dir1PinB, HIGH);
digitalWrite(dir2PinB, LOW);
} else {
digitalWrite(dir1PinA, HIGH);
digitalWrite(dir2PinA, LOW);
digitalWrite(dir1PinB, LOW);
digitalWrite(dir2PinB, HIGH);
}
if (millis() - time > 5000){
time = millis();
speed += 20;
if (speed > 255) {
   speed = 0;
}
if (1 == dir) {
   dir = 0;
} else {
   dir =1;
}
}
}

at97 发表于 2012-10-6 17:17:09

上面的代码那个是控制电机转动的和转动的时间，能说说吗

小猪会轮滑 发表于 2012-10-6 18:15:41

(1 == dir) {
digitalWrite(dir1PinA, LOW);
digitalWrite(dir2PinA, HIGH);
digitalWrite(dir1PinB, HIGH);
digitalWrite(dir2PinB, LOW);
} else {
digitalWrite(dir1PinA, HIGH);
digitalWrite(dir2PinA, LOW);
digitalWrite(dir1PinB, LOW);
digitalWrite(dir2PinB, HIGH);
这是让电机转动    。

if (millis() - time > 5000){
time = millis();
speed += 20;
if (speed > 255) {
   speed = 0;
}
if (1 == dir) {
   dir = 0;
} else {
   dir =1;
速度控制

你试试下面这个最简单的

intamotorl = 2 ;
intamotorr = 3 ;
intbmotorl = 4;
intbmotorr = 5 ;

void setup()
{
pinMode(2,OUTPUT);
pinMode(3,OUTPUT);
pinMode(4,OUTPUT);
pinMode(5,OUTPUT);

}

void loop()
{

digitalWrite(2,LOW);
digitalWrite(3,HIGH);
digitalWrite(4,LOW);
digitalWrite(5,HIGH);

}

at97 发表于 2012-10-6 19:55:35

小猪会轮滑发表于 2012-10-6 18:15 static/image/common/back.gif
(1 == dir) {
digitalWrite(dir1PinA, LOW);
digitalWrite(dir2PinA, HIGH);

intamotorl = 2 ;
intamotorr = 3 ;
intbmotorl = 4;
intbmotorr = 5 ;

void setup()
{
pinMode(2,OUTPUT);
pinMode(3,OUTPUT);
pinMode(4,OUTPUT);
pinMode(5,OUTPUT);

}

void loop()
{

digitalWrite(2,LOW);
digitalWrite(3,HIGH);
digitalWrite(4,LOW);
digitalWrite(5,HIGH);

}
这个试了一下，灯亮了，但电机没动.

小猪会轮滑 发表于 2012-10-6 20:11:39

at97 发表于 2012-10-6 19:55 static/image/common/back.gif
intamotorl = 2 ;
intamotorr = 3 ;
intbmotorl = 4;

电机驱动板加电源了吗？看清插线你把 2 、3 插 enain1 把 4、5插 enb in2

Randy 发表于 2012-10-6 20:50:21

小猪会轮滑发表于 2012-10-6 20:11 static/image/common/back.gif
电机驱动板加电源了吗？看清插线你把 2 、3 插 enain1 把 4、5插 enb in2

电源要分开接哦。不要接一下一起，不然干扰有时候会造成驱动不了的可能都有!

at97 发表于 2012-10-6 21:11:01

电机驱动板没加电源，只按上面的图连线，IN1对2、IN2对3、IN3对4、IN4对5.ENA对9，ENB对10.

太行摄狼 发表于 2012-10-6 22:49:38

hh哈哈来学习了，楼主还是多去看看步进的一些资料吧

at97 发表于 2012-10-7 01:59:33

Randy 发表于 2012-10-6 20:50 static/image/common/back.gif
电源要分开接哦。不要接一下一起，不然干扰有时候会造成驱动不了的可能都有!

// motor A
int dir1PinA = 2;
int dir2PinA = 3;
int speedPinA = 9;

// motor B
// motor A
int dir1PinB = 4;
int dir2PinB = 5;
int speedPinB = 10;

unsigned long time;
int speed;
int dir;

void setup() {
pinMode(dir1PinA, OUTPUT);
pinMode(dir2PinA, OUTPUT);
pinMode(speedPinA, OUTPUT);
pinMode(dir1PinB, OUTPUT);
pinMode(dir2PinB, OUTPUT);
pinMode(speedPinB, OUTPUT);

time = millis();
speed = 0;
dir = 1;
}

void loop() {
analogWrite(speedPinA, speed);
analogWrite(speedPinB, 255 - speed);
// set direction
if (1 == dir) {
digitalWrite(dir1PinA, LOW);
digitalWrite(dir2PinA, HIGH);
digitalWrite(dir1PinB, HIGH);
digitalWrite(dir2PinB, LOW);
} else {
digitalWrite(dir1PinA, HIGH);
digitalWrite(dir2PinA, LOW);
digitalWrite(dir1PinB, LOW);
digitalWrite(dir2PinB, HIGH);
}
if (millis() - time > 5000){
time = millis();
speed += 20;
if (speed > 255) {
   speed = 0;
}
if (1 == dir) {
   dir = 0;
} else {
   dir =1;
}
}
}
这个代码正确的，我也没接错线，RANDY说得对，分开接电源就行了。谢谢各位的帮忙。

Randy 发表于 2012-10-7 08:05:50

at97 发表于 2012-10-7 01:59 static/image/common/back.gif
// motor A
int dir1PinA = 2;
int dir2PinA = 3;

:lol:victory:

页: [1]

极客工坊's Archiver

arduino怎样才能使L298上的电机驱动