arduino驱动57步进电机问题
就是我想通过串口收到的字符来控制电机的正反转和停止,请大神们看看程序该怎么改,哪里错了,收到1和2都可以转,但是只转动几秒就停了,发送3的时候也没有打印停止到串口,我想让它一直转,收到1就一直正转,收到2 就一直反转,收到3就停止int PUL_1=7;
int DIR_1=6;
int val;
void setup()
{
Serial.begin(9600);//设置波特率为9600
pinMode(DIR_1,OUTPUT);
pinMode(PUL_1,OUTPUT);
}
void loop()
{
val=Serial.read();//读取串口收到的数据
if (val>'0'&& val<'3')
{
if(val== '1')
{
digitalWrite(DIR_1,HIGH); //电机正转
Serial.println("正转");
for(int a=0;a<1000;a++)
{
digitalWrite(PUL_1,HIGH);
delayMicroseconds(400);
digitalWrite(PUL_1,LOW);
delayMicroseconds(400);
}
}
else if(val=='2')
{
digitalWrite(DIR_1,LOW); //电机反转
Serial.println("反转");
for(int a=0;a<1000;a++)
{
digitalWrite(PUL_1,HIGH);
delayMicroseconds(400);
digitalWrite(PUL_1,LOW);
delayMicroseconds(400);
}
}
else if(val== '3')
{
digitalWrite(PUL_1,LOW);
Serial.println("停止");
}
}
}
int PUL_1=7;
int DIR_1=6;
int inByte;
// Variables will change:
int ledState = LOW;
unsigned long previousMillis = 0;
// constants won't change:
const long interval = 400;
void setup() {
Serial.begin(9600);
pinMode(DIR_1,OUTPUT);
pinMode(PUL_1,OUTPUT);
}
void loop() {
unsigned long currentMillis = millis();
if(Serial.available())
{
inByte = Serial.read();
Serial.println(inByte);
}
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
if(inByte != '3'){
if (ledState == LOW)
ledState = HIGH;
else
ledState = LOW;
}
}
if(inByte == '1')
digitalWrite(DIR_1,HIGH);
else if(inByte == '2')
digitalWrite(DIR_1,LOW);
digitalWrite(PUL_1, ledState);
}
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