Motor Shield V2 Pin 5_trouble

[xian5v]

Hello,
I Just received the motor shields i ordered. I am trying to soilder the stacker pins I purchase, but pin 5 is already soldered closed. Isthat how they are suppose to be?

thank you

[adafruit_support_bill]

please post a clear photo of the problem.

[xian5v]

this is a picture of the analog pins.

motor shield v2.jpg (698.46 KiB) Viewed 376 times

pin 5 is closed. Should it be like that?

thanks

[adafruit_support_bill]

That is unusual. It is an SMT board, so the solder is applied with a stencil.

In any case, it should not be difficult to clear. Some solder wick or a solder sucker will remove it. Or you can just position your header over the hole, heat it up and push it through.

[xian5v]

thank you. Seemed simply enough, just wanted to make sure.
I ran the DC motor test and works great.
Where do you extend the run time in the Adafruit code? It only runs for a second in each direction?

thanks again;
you guys are rad!

[adafruit_support_bill]

The standard DCMotorTest accelerates for about 2.5 seconds in each direction. This is controlled by the 'delay()' in the 'for' loops.

With a loop count of 255 and a delay of 10 milliseconds, it will take 2550 milliseconds to complete the loop. If you increase the number in the delay() function, it will accelerate slower and run for a longer time.

Code: Select all

void loop() {
  uint8_t i;
  
  Serial.print("tick");

  myMotor->run(FORWARD);
  for (i=0; i<255; i++) {
    myMotor->setSpeed(i);  
    delay(10);
  }
  for (i=255; i!=0; i--) {
    myMotor->setSpeed(i);  
    delay(10);
  }
  
  Serial.print("tock");

  myMotor->run(BACKWARD);
  for (i=0; i<255; i++) {
    myMotor->setSpeed(i);  
    delay(10);
  }
  for (i=255; i!=0; i--) {
    myMotor->setSpeed(i);  
    delay(10);
  }

  Serial.print("tech");
  myMotor->run(RELEASE);
  delay(1000);
}

[xian5v]

I am also trying to us a limit switch to stop the DC motor. I have used LN298 and wired the limit switch to the directional enable wire. When the motor gets to the top, the enable wire is broken and motor stops immediately. How can I put a switch on the enable pin of the motor shield when it is stacked, or how can I cause it to stop with a limit switch?


thanks!

[adafruit_support_bill]

There is no direct access to the enable pin. You would need to connect your limit switch to a digital pin and write some code to detect when it is closed and stop the motor.

[xian5v]

I had tried to do that and ran into some inconsistant digital pin readings. Looked up debounce, used arduino code example, that did not work. Not trying to play the newbie card, but I got the impression that debounce is a kinda difficult. Which led me to some forum suggestions the use an RC circuit instead of code. I could not get my debounce code from arduino.cc to do anything but flicker from 01010100011001. Is an RC circuit more reliable?
thank you bi!!

[adafruit_support_bill]

If it is flickering for more than a few milliseconds, bounce is not likely the problem. Sounds more like a floating input. Do you have a pullup resistor?
Post a photo of your connections and the code you are using.