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Topic: avrdude: ser_open(): can't open device "\\.\com3": (Read 95360 times) previous topic - next topic

SAnwandter1

Try This it Worked for me.
Good Luck!!  ;)

http://www.jormc.es/2014/10/24/arduino-avrdude-ser_open-cant-open-device-com3-access-is-denied/

aadhyachukkala

arduino-builder/arduino-builder -compile -core-api-version 10611 -build-path /tmp/515525502 -hardware arduino-builder/hardware -hardware arduino-builder/packages/cores -tools arduino-builder/tools -tools arduino-builder/packages/tools -built-in-libraries arduino-builder/latest -libraries /tmp/390776795/pinned -libraries /tmp/390776795/custom -fqbn arduino:avr:uno -build-cache /tmp -verbose=false /tmp/390776795/Blink

Sketch uses 928 bytes (2%) of program storage space. Maximum is 32256 bytes.

Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.

Flashing with command:C:/Users/WELCOME/.arduino-create/arduino/avrdude/6.3.0-arduino9/bin/avrdude.exe -CC:/Users/WELCOME/.arduino-create/arduino/avrdude/6.3.0-arduino9/etc/avrdude.conf -q -q -patmega328p -carduino -PCOM3 -b115200 -D -Uflash:w:C:/Users/WELCOME/AppData/Local/Temp/arduino-create-agent905352751/Blink.hex:i

avrdude: ser_open(): can't open device "\\.\COM3": Access is denied.

Executing command: exit status 1
I REALLY DONT KNO WHAT TO DO WITH MY ARDUINO UNO R3 RYT NOW!!!!!

TTicecube

I got to this topic and found no help what so every to fix the error.

Then i looked at the windows drivers at the com-port named "RAMPS"
Seems wrong and i downloaded "serieel chip (CH340) drivers" at:
https://sparks.gogo.co.nz/ch340.html
This fixed my problems

Re-plug the USB after install.
and it seem i have a "UNO R3 ATmega328P"

I hoop this is helpful.

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