Arduino Upload Avrdude: Ser_open(): Cant Open Device \.com4: Access Is Denied.

Nigh of the errors faced by the students when programming the microcontroller using Arduino are of ii types i type of errors that ascend compiling the code and the other type is the errors that arise when the code is existence uploaded to the Arduino. The compilation errors tin be rectified easily equally they are highlighted by the compiler but the errors that originate while uploading the lawmaking are not that easy to rectify because the compiler does non indicate what the crusade of the error. So we have listed some of the mutual errors that you lot might encounter while uploading the lawmaking and have also given the respective solution for each error.

What are the common errors encountered while uploading the sketch to Arduino?

The errors that arise when uploading the sketch to the Arduino are mostly due to issues in the advice between the programming software and the Arduino board. The list of errors that one can expect while uploading the sketch to the Arduino microcontroller

Error 1 : avrdude: ser_open(): tin't open device "portName": no such file or directory

Error 2 : avrdude: ser_open(): can't open up device "portName": the semaphore timeout period has expired

Fault 3 : avrdude: butterfly_recv(): programmer is non responding

Error 4 : avrdude: ser_open(): can't open device "portName": access is denied

Fault v : avrdude: stk500_recv(): programmer is not responding

Error half-dozen : avrdude: ser_open(): can't open device "portName": the arrangement cannot find the file specified

Error 7 : avrdude: stk500_getsync() try 10 of 10: non in sync

How to set up the errors encountered while uploading the code to the Arduino

In order to avoid the errors listed above ane should perform a bank check listing of all the solutions listed below:

Select the correct port and board for uploading the code

Earlier uploading the lawmaking make sure to select the port on which the Arduino is connected and more than importantly besides correctly select which board you lot are using The following images show how to select the Arduino lath and the port on which information technology is connected:

Once y'all have clicked on the pick highlighted in the epitome above a menu will announced having different boards But write the board name you are using in the search bar and select it from the menu and printing okay.

After selecting the lath, you lot tin can connect it to your estimator and now you take to select the port in the Arduino IDE on which the board is continued equally shown in the prototype below:

When you lot have selected the port, it will be shown like in the image given below and due to incorrect selection of port or board you lot can see the errors like the Mistake ane or Mistake 6 in the list given to a higher place.

Disconnect the RX and TX pins of Arduino board while uploading the code

The RX and TX pins are the advice pins of the Arduino board, and these pins are too used while uploading the lawmaking. Sometimes errors like Error 5 or Mistake 7 can be encountered because these pins are connected to any other communication device such as a Bluetooth module. And then, always while uploading the code to Arduino make certain that the RX and TX pins are not continued to any other device.

Keep open just 1 window of Arduino IDE

The port proper noun error (Error 4) sometimes occurs when more than one window is open on the Arduino IDE. So, ever keep only ane tab open while uploading the sketch to the Arduino microcontroller lath.

Plug out the USB cable for few seconds and plug it once more

If there are still errors even after trying the above solutions, and then merely try pulling out the USB cable for the PC then plug it back in. This fix is mostly related to Fault 3 "programmer not responding".

If the issue persists, and then perform the following steps:

Footstep 1: Press and agree the reset button

Step 2: Continue the reset button pressed and upload the lawmaking

Step 3: Expect until the lawmaking is uploaded successfully

Step 4: Release the reset push button when the code is uploaded

Determination

The errors that ascend while uploading the Arduino sketches are quite difficult to figure out but one thing is for certain and that is these errors are mostly related to the communication outcome between the Arduino programing software and the Arduino microcontroller board And so for the ease of the learners we have explained some of the most common errors faced while uploading the sketch and also we have given some fixes for such errors.

Almost the author

I am an electrical engineer and a technical blogger. My keen interest in embedded systems has led me to write and share my noesis nearly them.

taverascind1940.blogspot.com

Source: https://linuxhint.com/fix-avr-dude-error-arduino/

Share this post