Conflict VirtualWire ServoTimer2

[peters_larss]

Hey,
i´m writing code for a RC-Car and have a problem with controlling a servo.
I want to send data from one Arduino to another and steer a servo there. I use ServoTimer2 to not get in conflict with the timer of vw and the servo-library. But when i try to controll the Servo i can´t receive new data anymore. Controlling the Servo without vw is no problem. I tried even a few other pins but it doesn´t change anything.
Has anybody an idea where the problem could be?

[sterretje]

@peters_larss

Has anybody an idea where the problem could be?

Maybe in the code that you did not post?

[peters_larss]

/*Code zur Steuerung eines RC Cars mit DC-Motor mithilfe einer Fernbedienung
  Erstellt für T1000 TMB21 DHBW Mannheim
  PFW Aerospace GmbH Speyer
  programmiert von Lars Peters*/
  
#include <VirtualWire.h>
#include <ServoTimer2.h>

#define motorpin1 13
#define motorpin2 12
#define motorpinspeed 6

#undef int
#undef abs
#undef double
#undef float
#undef round

ServoTimer2 lenkung;

void setup()
  {
    Serial.begin(9600); 
    pinMode(motorpinspeed, OUTPUT); 
    
  
    lenkung.attach(9);
    vw_set_ptt_inverted(true);    // Required for RX Link Module
    vw_setup(2000);                   // Bits per sec
    vw_set_rx_pin(2);           // We will be receiving on pin 2 i.e the RX pin from the module connects to this pin. 
    vw_rx_start();                      // Start the receiver 
  }

void loop()
  {
    int values[3];
    uint8_t buf[VW_MAX_MESSAGE_LEN];
    uint8_t buflen = VW_MAX_MESSAGE_LEN;

    if (vw_get_message(buf, &buflen)) // check to see if anything has been received
    {

    for (int i = 0; i < 3; i++)
    {
      values[i] = word(buf[i*2+1], buf[i*2]);
      Serial.print("values[");
      Serial.print(i, DEC);
      Serial.print("]=");
      Serial.print(values[i], DEC);
      Serial.print("  ");
    }
    Serial.println();
  }
    int geschw = map(values[0], 510,1023,0,255);  //Umrechnen der Joystick-Werte in PWM-Wert für Geschwindigkeit
    int winkel = map(values[1], 510,1023,1500,2250); //Umrechnen in Winkel für Lenkservo
    //Serial.println(winkel);
    lenkung.write(winkel);
    if(geschw>50)
      {
        digitalWrite(motorpin1, HIGH);
        digitalWrite(motorpin2, LOW);
        analogWrite(motorpinspeed, geschw); //Motor mit mind. 50 PWM, sonst ungleichmäßiger Lauf
      }  
    else if(geschw<-50) 
      {
        digitalWrite(motorpin1, LOW);
        digitalWrite(motorpin2, HIGH);
        analogWrite(motorpinspeed, abs(geschw));
      }
    else
      {
        analogWrite(motorpinspeed, 0);
      }
    
}

[jremington]

analogWrite(motorpinspeed, geschw); //Motor mit mind. 50 PWM, sonst ungleichmäßiger Lauf

Check whether the above uses Timer1, in conflict with VirtualWire.