How to remove the PI4J pwm jitter?

[Yellow Eagle]

Hey :D, how can i remove the pwm jitter?

Thanks in advance :D

[Yellow Eagle]

Am Donnerstag, 26. Mai 2016 16:19:07 UTC+2 schrieb Yellow Eagle:

Hey :D, how can i remove the pwm jitter?

   The Code that i m using for my Motor ESC controller: 

    

@Override

public void run() {

Gpio.wiringPiSetup();

try {

SoftPwm.softPwmCreate(24, 0, 60);

SoftPwm.softPwmWrite(24, 12);

Thread.sleep(100);

while((true)){

SoftPwm.softPwmWrite(24, 12);

Thread.sleep(100);

SoftPwm.softPwmWrite(24, 20);

Thread.sleep(100);

    if(stop){

        SoftPwm.softPwmWrite(24, 0);

    Thread.currentThread().destroy();

    }

}

} catch (InterruptedException e) {

e.printStackTrace();

}

}

 

 

 

Thanks in advance :D

[Robert Savage]

Use the hardware PWM pin instead of SoftPWM.  Its far more efficient and does not rely on software driver.

Here is an example:  https://github.com/Pi4J/pi4j/blob/develop/pi4j-example/src/main/java/PwmExample.java

Depending on the model, you have at least 1 hardware PWM pin, maybe more:

 // All Raspberry Pi models support a hardware PWM pin on GPIO_01.

 // Raspberry Pi models A+, B+, 2B, 3B also support hardware PWM pins: GPIO_23, GPIO_24, GPIO_26

Thanks, Robert

[Yellow Eagle]

Thank you very mutch :D 

[Yellow Eagle]

Am Donnerstag, 26. Mai 2016 16:34:04 UTC+2 schrieb Robert Savage:

Use the hardware PWM pin instead of SoftPWM.  Its far more efficient and does not rely on software driver.

Here is an example:  https://github.com/Pi4J/pi4j/blob/develop/pi4j-example/src/main/java/PwmExample.java

Depending on the model, you have at least 1 hardware PWM pin, maybe more:

 // All Raspberry Pi models support a hardware PWM pin on GPIO_01.

 // Raspberry Pi models A+, B+, 2B, 3B also support hardware PWM pins: GPIO_23, GPIO_24, GPIO_26

Thanks, Robert

When i would use the Code i couldn t import some methods...

[Robert Savage]

That PWM example is based on the latest 1.1-SNAPSHOT builds.  You can download the latest JARs directly from the Pi4J.com website.

[Yellow Eagle]

Oh, ok :D