Avrdude error ... Arduino motor shield

Projects Programming
1

I am trying to use an Arduino motor shield to run a DC motor. I've used my uno board for another project, and it worked fine. But for some reason, this code will not upload... I keep getting the following error. Could someone please explain how I can fix this issue?

I will attach the code below the error.

Sketch uses 1158 bytes (3%) of program storage space. Maximum is 32256 bytes.
Global variables use 10 bytes (0%) of dynamic memory, leaving 2038 bytes for local variables. Maximum is 2048 bytes.
"C:\Users\denis\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/bin/avrdude" "-CC:\Users\denis\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf" -v -V -patmega328p -carduino "-PCOM3" -b115200 -D "-Uflash:w:C:\Users\denis\AppData\Local\Temp\arduino\sketches\2EF38CB9F182336CA40A5BDA0EA8968D/sketch_oct3a.ino.hex:i"

avrdude: Version 6.3-20190619
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2014 Joerg Wunsch

         System wide configuration file is "C:\Users\denis\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf"

         Using Port                    : COM3
         Using Programmer              : arduino
         Overriding Baud Rate          : 115200
avrdude: ser_open(): can't set com-state for "\\.\COM3"

avrdude done.  Thank you.

Failed uploading: uploading error: exit status 1

int directionPin = 12;
int pwmPin = 3;
int brakePin = 9;

//uncomment if using channel B, and remove above definitions
//int directionPin = 13;
//int pwmPin = 11;
//int brakePin = 8;

//boolean to switch direction
bool directionState;

void setup() {
  
//define pins
pinMode(directionPin, OUTPUT);
pinMode(pwmPin, OUTPUT);
pinMode(brakePin, OUTPUT);

}

void loop() {

//change direction every loop()
directionState = !directionState;

//write a low state to the direction pin (13)
if(directionState == false){
  digitalWrite(directionPin, LOW);
}

//write a high state to the direction pin (13)
else{
  digitalWrite(directionPin, HIGH);
}

//release breaks
digitalWrite(brakePin, LOW);

//set work duty for the motor
analogWrite(pwmPin, 30);

delay(2000);

//activate breaks
digitalWrite(brakePin, HIGH);

//set work duty for the motor to 0 (off)
analogWrite(pwmPin, 0);

delay(2000);
}
2

is it plugged into the same port as configured?

3

yes i always use the same port and the number never changes

4

I also tried my other usb plugin and it gave me this error after trying to uplode reset code

` // put your setup code here, to run once:

}

void loop() {
// put your main code here, to run repeatedly:

}

Sketch uses 444 bytes (1%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
"C:\Users\denis\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/bin/avrdude" "-CC:\Users\denis\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf" -v -V -patmega328p -carduino "-PCOM4" -b115200 -D "-Uflash:w:C:\Users\denis\AppData\Local\Temp\arduino\sketches\F37ED7CDD0070606E8550726CB22B9C0/sketch_oct4a.ino.hex:i"

avrdude: Version 6.3-20190619
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2014 Joerg Wunsch

         System wide configuration file is "C:\Users\denis\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf"

         Using Port                    : COM4
         Using Programmer              : arduino
         Overriding Baud Rate          : 115200
avrdude: ser_open(): can't set com-state for "\\.\COM4"

avrdude done.  Thank you.

Failed uploading: uploading error: exit status 1
```
5

this isn't a motor shield problem

try editing the title of the thread with the above error so that someone more familiar with avrdude will look at this

6

thank you very much for checking this for me.