Howdy, I just built a brand new PC with Windows 11 and installed IDE 2.0.4. After compiling simple Blink sketch and attempting to UPLOAD the sketch to an ESP32 I received the error message: Sketch uses 252261 bytes (19%) of program storage space. Maximum is 1310720 bytes. Global variables use 22…

[image] edthewino: Yes. OK, so the "Windows has determined the best driver for this device is already installed." is expected in that case because COM1 is not the ESP32 board. [image] edthewino: CP2102 USB to UART Bridge is not listed under "Other Devices." Are you certain? I can see …

Hi @edthewino . COM1 is usually the internal serial port of your computer, not the Arduino board. You can check whether it's the ESP32 board by doing this: Unplug your ESP32 board from the computer. Select Tools > Port from the Arduino IDE menus. Note the ports, if any, listed in the menu. Close t…

Does device manager show com1 as well?

Removing USB cable from port does not change port listing. COM3 is shown for UNO Wifi Rev2 and COM1 remains with a check mark both before and after removing cable connection. I would of thought COM1 would have disappeared but it remained. Windows gives me an audible "ding" each time I remove or …

[image] apf1979: Does device manager show com1 as well? Yep. It lists both COM ports 1 & 3. Interesting that under Device Manager for COM3 properties it shows the baud rate at 9600. The upload went fine with the UNO on COM3. For giggles I changed the COM1 port to 9600 instead of 115200 jus…

I am unsure if this matters but it is worth mentioning I guess. The USB ports I am using are the ones installed on the Thermaltake case front. I did try a USB port hardwired to the motherboard but it produced the same result as the case USB ports. And since the UNO is uploading fine on the case US…

Do you have the ESP32 Windows driver installed?

So Windows device manager does not show a port but Windows makes the dingdong sound when you connect the board. Anything (new) with a yellow triangle in Windows device manager when you connect the board?

Device Manager DOES show the port(s). COM1 for ESP and COM3 for Arduino UNO.

Under Device Manager it shows two different drivers available for installation: serenum.sys & serial.sys. What is the correct device driver for linking to an ESP32? [Screenshot (1)]

[image] JohnRob: Do you have the ESP32 Windows driver installed? Hmmm..... that is a very good question! Are you referring to the Espressif install in the IDE or an installation in the Windows environment?

Solved: Upload comm failure: New PC & Windows 11 using IDE 2.0.4

Development Tools IDE 2.x

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Solved: Upload comm failure: New PC & Windows 11 using IDE 2.0.4

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