ESP8266 - COM not found on MAC

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Hi, im using mac and trying to to do a project related to ESP8266. I installed the driver https://www.silabs.com/developer-tools/usb-to-uart-bridge-vcp-drivers?tab=downloads for MAC. but i cant find the COM Port. How to solve this?

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I moved your topic to an appropriate forum category @ivykate01 .

In the future, please take some time to pick the forum category that best suits the subject of your topic. There is an "About the _____ category" topic at the top of each category that explains its purpose.

This is an important part of responsible forum usage, as explained in the "How to get the best out of this forum" guide. The guide contains a lot of other useful information. Please read it.

Thanks in advance for your cooperation.

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Hi @ivykate01
Welcome to the forum!
Have you included the additional URL for the ESP8266 in Arduino IDE. Try this URL: https://espressif.github.io/arduino-esp32/package_esp32_index.json as the additional URL.
PS: Include the URL in preferences under the files tab

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oh ok im gonna try

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still not showing the port. i switch to windows and install all drivers for esp8266.

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opps, now the com is showing. my problem is now this. i got an error message

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Hello @ivykate01. I'm going to ask you to provide the full verbose output from a compilation.

:exclamation: This procedure is not intended to solve the problem. The purpose is to gather more information.

Please do this:

  1. Select File > Preferences... (or Arduino IDE > Settings... for macOS users) from the Arduino IDE menus.
    The "Preferences" dialog will open.
  2. Check the box next to "Show verbose output during: ☐ compile" in the "Preferences" dialog.
  3. Click the "OK" button.
    The "Preferences" dialog will close.
  4. Select Sketch > Verify/Compile from the Arduino IDE menus.
  5. Wait for the compilation to fail.
  6. You will see a "Compilation error: ..." notification at the bottom right corner of the Arduino IDE window. Click the "COPY ERROR MESSAGES" button on that notification.
  7. Open a forum reply here by clicking the "Reply" button.
  8. Click the <CODE/> icon on the post composer toolbar.
    This will add the forum's code block markup (```) to your reply to make sure the error messages are correctly formatted.
    Code block icon on toolbar
    Code block icon on toolbar390×118 4.25 KB
  9. Press the Ctrl+V keyboard shortcut (Command+V for macOS users).
    This will paste the compilation output into the code block.
  10. Move the cursor outside of the code block markup before you add any additional text to your reply.
  11. Click the "Reply" button to post the output.

In case the output is longer than the forum software will allow to be added to a post, you can instead save it to a .txt file and then attach that file to a reply here.

Click here for attachment instructions

  1. Open any text editor program.
  2. Paste the copied output into the text editor.
  3. Save the file in .txt format.
  4. Open a forum reply here by clicking the "Reply" button.
  5. Click the "Upload" icon (Upload icon) on the post composer toolbar:
    Upload icon on toolbar
    Upload icon on toolbar393×121 6.05 KB

    The "Open" dialog will open.
  6. Select the .txt file you saved from the "Open" dialog.
  7. Click the "Open" button.
    The dialog will close.
  8. Click the "Reply" button to publish the post.

Alternatively, instead of using the "Upload" icon on the post composer toolbar as described in steps (5) - (7) above, you can simply drag and drop the .txt file onto the post composer field to attach it.

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Sorry I switch back to MAC and still not showing the COM Port

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I have deleted your other cross-post @ivykate01.

Cross-posting is against the Arduino forum rules. The reason is that duplicate posts can waste the time of the people trying to help. Someone might spend a lot of time investigating and writing a detailed answer on one topic, without knowing that someone else already did the same in the other topic.

Repeated cross-posting can result in a suspension from the forum.

In the future, please only create one topic for each distinct subject matter. This is basic forum etiquette, as explained in the "How to get the best out of this forum" guide. It contains a lot of other useful information. Please read it.

Thanks in advance for your cooperation.

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yes thank you

1 Like
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Please help

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Have you installed the right drivers for the mac. And you will also have to permit the driver to be used follow these steps:

  1. Install the driver in order to communicate UART through USB.
  2. Go to Preferences/Security & Privacy and allow the driver to run, and restart the Mac.
  3. Connect your Micro USB to your ESP32 Board.
  4. Run $ ls /dev/cu.* and you should now see /dev/cu.SLAB_USBtoUART.

alsogive the information asked by @ptillisch as it will help the arduino team in fixing the issue