Cant Connect to Arduino Nano V3
I remember I had to do something funny to my home computer to get it to connect to my Arduino Nano V3 and that Arduino IDE would fail to upload code or Upload, but it would just keep doing the default blink code rather than the code I was uploading.
I have a surface that I got so I can now code and tinker between breaks at work but Im having the same problem and I can't remember what I had to do to get it to connect and upload successfully.
Its a fresh install of Windows
Fresh IDE Install
I downloaded the CH340 Modified Drivers since by default IDE would not even detect my arduino or the com port (It was greyed out), after this, Com3 showed up
I set the device to Arduino Nano
Set the Com Port to Com3
Set Processor to ATMega328P, Upload would time out
Set Processor to ATMega328P (Old Bootloader), Same thing, Upload times out
Set Processor to ATMega168, and then upload will "succeed" however, it doesn't actually seem to upload my code cause its doing the default blink code.
Anyone know what I missed or did wrong? I cant remember what I did before to get my home computer to connect and upload.
7 Replies
Unknown User•9mo ago
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I’ve run into this exact same issue before too especially with clones that use the CH340 chip
What was your solution?
Open Device Manager → under Ports (COM & LPT) → you should see USB-SERIAL CH340 (COM3)
If it shows a yellow ⚠️ or isn’t listed properly, uninstall the driver and try the legacy CH340 driver
I followed this
Sometimes the bootloader doesn’t respond fast enough.
👉 Right after clicking Upload, press the Reset button on the Nano once, within 1–2 seconds.
It’s a timing game this forces the bootloader to enter programming mode
ill look at it in a bit, im not able to do it rn
Are you doing any, project btw?
?