why when i upload a firmware to arduino it says this?
avrdude: ser_open(): can't open device "\.\COM5": Access is denied.
im pretty sure evrythings connected properly
Is anything else using COM5 ?
Is COM5 indeed the board? Does it disappear from the IDE's ports menu when you disconnect the board?
It might be relevant which board?
Be sure you select the appropriate board. Since you did not tell us we cannot tell you where to set it. Also be sure the proper protocol (boot loader) is selected. I come across this with Nano boards.
And make sure you haven’t got the serial monitor open
Which version of the IDE are you using ?
No, nothing else is in com 5
I am using Arduino 1.8.19
What do you mean?
I am using Arduino Wi-Fi rev2
Have you read how to get started with this board - Rev 2 is not a normal UNO with Wi-Fi added , it’s a different processor ( 4809 instead of 328) and might need a board setup .
Google the product and look at “ getting started “
Found this “ If you are using the new Arduino Uno WiFi Rev2 board, first select Tools > Board: … > Boards Manager… from the main menu to open the Boards Manager, then install the Arduino megaAVR Boards by Arduino boards library that includes Arduino Uno WiFi Rev2 board support. Then select Tools > Board: … > Arduino Uno WiFi Rev2 within the Arduino megaAVR section from the main menu to select the board. To install the WiFiNINA library, select Tools > Manage Libraries… to open the Library Manager, then search for and install the WiFiNINA library.”
From the number of queries seen here this board seems to cause more than its fair share of problems, many of which seem to be caused by confusion with the normal Arduino Uno
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