使用ardiuno uno+motor shield驱动步进电机，板子发热问题如何...

april_xcwang

使用ardiuno uno+L298P Motor Shield，控制步进电机：微雪SM24240，外接直流电源3-12v都存在motor shield的芯片L298P，发热严重的现象，外接电源接在了UNO的圆形接口上。也试过接到shield上的电源接口。温度估计有70-80度，请教各位大神，这样子是否正常，有什么解决方案吗？

april_xcwang

void loop(){   // Check for input if (Serial.available() > 0) {     bufferInt = Serial.read(); if (bufferInt == '1') {   for(int i=0; i<nbstep; i++){   digitalWrite(9, LOW);  //ENABLE CH A   digitalWrite(8, HIGH); //DISABLE CH B    digitalWrite(12, HIGH);   //Sets direction of CH A   analogWrite(3, 255);   //Moves CH A      delay(delaylegnth);      digitalWrite(9, HIGH);  //DISABLE CH A   digitalWrite(8, LOW); //ENABLE CH B    digitalWrite(13, LOW);   //Sets direction of CH B   analogWrite(11, 255);   //Moves CH B      delay(delaylegnth);      digitalWrite(9, LOW);  //ENABLE CH A   digitalWrite(8, HIGH); //DISABLE CH B    digitalWrite(12, LOW);   //Sets direction of CH A   analogWrite(3, 255);   //Moves CH A      delay(delaylegnth);        digitalWrite(9, HIGH);  //DISABLE CH A   digitalWrite(8, LOW); //ENABLE CH B    digitalWrite(13, HIGH);   //Sets direction of CH B   analogWrite(11, 255);   //Moves CH B      delay(delaylegnth);       } } } }

april_xcwang

怎么把代码贴上来

april_xcwang

april_xcwang 发表于 2022-3-1 10:53
怎么把代码贴上来

1. void loop(){
   
2.   // Check for input
   
3. if (Serial.available() > 0) {
   
4.     bufferInt = Serial.read();
   
5. if (bufferInt == '1') {
   
6.   for(int i=0; i<nbstep; i++){
   
7.   digitalWrite(9, LOW);  //ENABLE CH A
   
8.   digitalWrite(8, HIGH); //DISABLE CH B
   
9. 
   
10.   digitalWrite(12, HIGH);   //Sets direction of CH A
    
11.   analogWrite(3, 255);   //Moves CH A
    
12.   
    
13.   delay(delaylegnth);
    
14.   
    
15.   digitalWrite(9, HIGH);  //DISABLE CH A
    
16.   digitalWrite(8, LOW); //ENABLE CH B
    
17. 
    
18.   digitalWrite(13, LOW);   //Sets direction of CH B
    
19.   analogWrite(11, 255);   //Moves CH B
    
20.   
    
21.   delay(delaylegnth);
    
22.   
    
23.   digitalWrite(9, LOW);  //ENABLE CH A
    
24.   digitalWrite(8, HIGH); //DISABLE CH B
    
25. 
    
26.   digitalWrite(12, LOW);   //Sets direction of CH A
    
27.   analogWrite(3, 255);   //Moves CH A
    
28.   
    
29.   delay(delaylegnth);
    
30.    
    
31.   digitalWrite(9, HIGH);  //DISABLE CH A
    
32.   digitalWrite(8, LOW); //ENABLE CH B
    
33. 
    
34.   digitalWrite(13, HIGH);   //Sets direction of CH B
    
35.   analogWrite(11, 255);   //Moves CH B
    
36.   
    
37.   delay(delaylegnth);
    
38. 
    
39.      }

复制代码

coloz

正常的，不放心就加散热片

april_xcwang

coloz 发表于 2022-3-1 16:15
正常的，不放心就加散热片

谢谢，我后来发现，code有点bug加几行，可以不那么热了，应该不用加了