Arduino IDE 1.8.6 "No device found" with DUE

[Uup115]

Hello,

I installed Arduino IDE 1.8.6 (Windows 7) a couple of days ago, to resolve "Rebuilding All" every time. Good work and thanks! Just donated $50 :-)

Unfortunately, it seems communication with the DUE board is now broken (at least intermittent). When trying to upload a sketch to DUE, the error "No device found on com" intermittently displays. Fidgeting with the DUE board and IDE sometimes renders a successful upload. However, I haven't been able to find a sure-fire way to upload successfully every time. Success rate is about 25%. Problem occurs with both DUE USB ports: Native and Programming.

I'm currently running Arduino IDE on three machines:

Windows 7 with IDE 1.8.6: "No device found on com"
Linux Mint 18 with IDE 1.8.6: "No device found on tty"
Manjaro Arch Linux with IDE 1.8.5: Uploads successfully 100%.

The Windows 7 machine previously had 1.8.5, which had 100% upload success rate. Both Linux machines have fresh installs of Arduino IDE. The same DUE board was tested on all three machines.

Thanks and Best Regards

[facchinm]

Hi @Uup115 ,
thanks for the report. Between 1.8.5 and 1.8.6 didn't we didn't change the upload code so it looks a bit strange that a problem has appeared out of the blue.
I'd ask you to do a couple of tests:

• check if Linux Mint has ModemManager installed and eventually uninstall/disable it (if you don't need it for a real 56K modem of course 🙂 )
• if it still doesn't work, try running 1.8.5 on the Mint box (without installing it, only run ./arduino from the extracted folder)
• make 100% sure to always select the right port under Tools/Port (native port may change name between different runs)

The Windows7 machine is a bit of a mystery, I'll check if I'm able to reproduce the bug.

[Uup115]

Hello @facchinm

Thanks for your quick response. I performed all your suggestions above. Disabling ModemManager didn't improve things. Running ./arduino didn't help either. Ports are properly selected as well. Unfortunately, I've discovered the Manjaro machine also has this issue :-(. You're right, Arduino IDE probably isn't the culprit. I suspect it's caused by "nosiy" communication or something. Digging a little further, I found this:

https://forum.arduino.cc/index.php?topic=148613.0

See post # 10, Updated March 2018. It seems others are experiencing this issue. Per @Joe0815, executing the following commands, is a semi-reliable solution for Linux:

sudo chmod 666 /dev/ttyACM0
stty -F /dev/ttyACM0 speed 1200 cs8 -cstopb -parenb

After 30 minutes of back to back sketch uploads, this seems to work 100% for the Manajro machine (desktop). However, since the baud rate resets to 115200 after an upload finishes, the 2nd command must be invoked twice before each sketch upload, Oddly, it requires two invocations to set the baud rate to 1200. The Mint machine (laptop) doesn't show any improvement, when invoking these commands. Changing the baud rate, via Windows 7 (desktop machine) device manger, doesn't help either. For now, it looks like I'll need to switch my development from Windows 7 to Manjaro.

Is it possible to set the upload baud rate inside Arduino IDE?

Thanks and Best Regards

[facchinm]

It could be a faulty board indeed.
If it's still under warranty it will be better to contact support for a replacement; otherwise I can give you some troubleshooting advice but they all require hardware modifications 🙂

[Uup115]

Hello @facchinm,

Troubleshooting advice is always helpful. Thanks!

Best Regards

[facchinm]

Ok, closing the issue in the meantime 🙂
One of the possible causes if a missing pullup resistor on the RESET line; take a look at this topic to confirm if your board is affected 😉

[PaulStoffregen]

Just curious, is this a genuine Arduino Due, or a Chinese clone?

[Uup115]

Not even sure. This is what I was given to work with. Can you tell by the photo?

[PaulStoffregen]

Here's a photo of the one I have on my desk, which I know is genuine from Arduino.

[PaulStoffregen]

From the missing logo & Italy graphic, and the much darker blue color, I'd say odds are strong it's a clone.

But the real question is whether it has some electrical shortcoming that's causing you so much grief. All the parts are on the other side...

[Uup115]

So, it seems mine isn't original. Sadly, Arduino Store is OOS.