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Problem with M2 PWM on Romeo v2

userHead Account cancelled 2019-06-26 19:59:20 1977 Views1 Replies
Hello
I have a problem with Romeo v2.2 in Devastator. Well, the DC motor connected to the M2 connectors only works when the PWM signal is set to 255. Anything less than 255 means that the motor is not running. The direction of rotation does not matter. Romeo board is new. The DC motor is operational, since it is working properly when connected to M1. Romeo is also connected to an IR receiving diode (pin 2) and a 433mhz receiver (pin 3, I don't use it yet). I'm using a modified sketch from https://wiki.dfrobot.com/Romeo_V2-All_i ... KU_DFR0225_. Does any of you have any ideas why it does not work as it should?
Code: Select all
#include <IRremote.h>

const int OdbiorIR = 2;
IRrecv irrecv(OdbiorIR);
decode_results results;
int komenda;

int E1 = 5;     //M1 Speed Control
int E2 = 6;     //M2 Speed Control
int M1 = 4;    //M1 Direction Control
int M2 = 7;    //M1 Direction Control

int bieg;

void stop(void)                    //Stop
{
  digitalWrite(E1,LOW);
  digitalWrite(E2,LOW);
}
void DoPrzodu(int a,int b)          //Move forward
{
  analogWrite (E1,a);      //PWM Speed Control
  digitalWrite(M1,HIGH);
  analogWrite (E2,b);
  digitalWrite(M2,HIGH);
}
void DoTylu (int a,int b)          //Move backward
{
  analogWrite (E1,a);
  digitalWrite(M1,LOW);
  analogWrite (E2,b);
  digitalWrite(M2,LOW);
}
void ObrotLewo (int a,int b)             //Turn Left
{
  analogWrite (E1,a);
  digitalWrite(M1,LOW);
  analogWrite (E2,b);
  digitalWrite(M2,HIGH);
}
void ObrotPrawo (int a,int b)             //Turn Right
{
  analogWrite (E1,a);
  digitalWrite(M1,HIGH);
  analogWrite (E2,b);
  digitalWrite(M2,LOW);
}
void setup(void)
{
  Serial.begin(9600);
  Serial.println("Rozpoczęto komunikację z PC!");

  irrecv.enableIRIn();
  irrecv.blink13(true);
  stop();
  bieg=255;
}
void loop(void)
{
   if (irrecv.decode(&results)){
        Serial.println(results.value, HEX);
        komenda=results.value;
        Serial.print("Znaleziono: ");
        Serial.println(komenda);
        irrecv.resume();
        switch(komenda)
         {
          case -28561:
            bieg=100;
          break;
          case -30601: 
            bieg=170;
          break;
          case -14281:
            bieg=255;
          break;
          case 1275:
            DoPrzodu (bieg, bieg);   //move forward
          break;
          case 1785://Move Backward
            DoTylu (bieg, bieg);   //move back
          break;
          case -14535://Turn Left
            ObrotLewo (bieg, bieg);
          break;
          case -10201://Turn Right
            ObrotPrawo (bieg, bieg);
          break;
          case -2041:
            stop();
          break;
      }
    }
  }
2019-07-02 11:15:47
Code: Select all
int E1 = 5;    
int E2 = 6;     
int M1 = 4;    
int M2 = 7;    

void setup() { 
    int i;
    for(i=4;i<=7;i++)
    pinMode(i, OUTPUT);  
    Serial.begin(19200);      //设置串口波特率
} 

void loop() { 
       analogWrite (E1,100);             
       digitalWrite(M1,HIGH);  
       Serial.println("555");  
       
       analogWrite (E2,100);    
       digitalWrite(M2,HIGH);
       Serial.println("666"); 
}
Please ensure that the jumper on the board is shorted (supports PWM control mode.) and the motor is normal.
Please use this code, if it still can't work, contact us at [email protected] to replace. userHeadPic techsupport
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