Arduino Nano Troubleshooting

Hi everyone,

I'm having trouble with my Arduino Nano clone not showing up in my IDE. I've tried different USB cables and computers, and I've installed all the necessary drivers (CH340). When I connect it, only the power light turns on. In contrast, my other devices from the same manufacturer show both the L and power lights (those show up on the computer). Any suggestions would be greatly appreciated!

The L led is the builtin and the pre-loaded Blink sketch turns it on.

That’s helpful information! So, the L LED doesn’t really provide any clues about the issue? Is there anything I can do to fix the problem I’m experiencing?

Additionally, for reference, the product I bought on Amazon is the AITRIP 10PCS Nano V3.0 ATmega328P Nano Board CH340 5V 16M Microcontroller Board, compatible with Arduino electronics development.

It's a clone, so who knows. Nothing I can do since there are no clues. Too bad there wasn't an error log you could post in code tags.

Are you using Windows?
Does the connected Nano show up in device manager and is recognized as a usb device?

For other operating systems (MAC, linux) is the Nano recognized as a usb device?

I've tried both Windows and Mac. The device does not show up in device manager or disk utility.

I'm not familiar with the Mac, so I'll keep my references to Windows.

Not even under "Other Devices" as a virtual serial port?

You may not have the correct driver for the CH340, but I think the chip should be recognized by the computer if all is working correctly.

Sounds to me like you got a dud one. I would send it back to who ever sold it you and ask for a replacement or refund.

Only if it wasn't abused by @ozubi123. The problem is that we don't know if OP is testing one new from the box without anything connected or if there is a history.

I've just written a page with some suggestions you may find useful.

On a Mac:

Disk utility will not show an Arduino. Only disk drives, flash drives et al

Open a Terminal window and try the following command:
ls /dev | grep usb

When an Arduino is recognized you should get something like

cu.usbmodem14311401
tty.usbmodem14311401

Given the most recent feedback reviews on the Amazon site where the AITRIP 10PCS Nano V3.0 ATmega328P Nano Board CH340 5V 16M Microcontroller Board were purchased there do appear to be hardware issues with some of the devices.

This is really helpful! Thank you!

t looks like two out of the ten I've purchased are experiencing a similar issue. I’m wondering if they might be defective. or if they possibly lack a bootloader (just guessing here)

The lack or presence of a bootloader would not be at play where the issue is that the device is not recognized by usb. The bootloader is code on the ATmega 328 chip. You appear to not be detecting the CH340 usb interface chip.

In the Amazon feedback, there were cases where the CH340 or the resonator for it were missing. Does the back side of the defective devices look like those which indeed work?