Does anyone have a way to fix this error message? The code seems fine but whenever I press run and upload and get hit with this error.
If you read the pinned post re 'How to get the most from the forum', you will discover what is expected of you to get support.
This is at least the 4th or 5th time I have seen this today, a search of the forum should be helpful.
Hi @1mouseratter1. Are you using an UNO R3 board? I see you have Arduino IDE configured for use with that board (i.e., you have selected Tools > Board > Arduino AVR Boards > Arduino Uno from the Arduino IDE menus), but it is possible to use that same configuration for other boards such as the classic Nano or 3rd party derivatives of the UNO R3.
I ask because one possible cause of this error is specific board hardware. However, that specific problem does not affect the official UNO R3 or faithful clones of that board.
How does it work for 3rd party derivatives, and can I connect to them using ardudino IDE, I have both a 3rd party and an official arduino UNO
It depends on the hardware.
Yes.
Were you uploading to the official board when you encountered this "Access is denied" error, or were you instead uploading to the 3rd party board?
Yes. Copy the full text from the error console and paste it into a code block.
Did either board work with the IDE? When switching between boards, the IDE will some times have the port and board information from the previous board. To correct this, try:
IDE >>BOARDS >> AVR BOARDS >> your board
IDE >> PORT >> your port
IDE >> PROCESSOR >> your processor (if CH340 OLD BOOTLOADER)
I applied it to both, but I was getting the error message access denied from the official arduino uno
Sketch uses 3786 bytes (11%) of program storage space. Maximum is 32256 bytes.
Global variables use 289 bytes (14%) of dynamic memory, leaving 1759 bytes for local variables. Maximum is 2048 bytes.
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00
Failed uploading: uploading error: exit status 1
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This output shows the upload is failing with a completely different error.
In post #1, the screenshot shows the upload failed with the error message:
avrdude: ser_open(): can't open device "\\.\COM7": Access is denied.
That error message is not present in the output you shared in post #9.
I notice now that the title of the forum topic also references the "not in sync" error message instead of "Access is denied.".
The two errors have different causes so it is important for us to understand which error you are currently encountering so that we can effectively assist you.
Are you still encountering that "Access is denied." error message when you attempt to upload a sketch?
When I see this error, I verify (1) the USB cable is plugged-in at both ends (Arduino and PC), (2) the cable is a DATA cable by listening for the system chime sound when the USB connector is inserted, (3) IDE >> BOARD and PORT are correct.
I restarted my PC and it started connecting
I'm not sure I understand what you mean by "started connecting". Are you saying that the problems are solved and you are now able to upload successfully to both boards?
yes
Great news! Thanks for taking the time to post an update.
Regards,
Per