Homeduino device not initialized on Raspberry boot

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Hi! I’m not sure if I’m posting this to the right part of forum. I have a weird problem on my second Pimatic system (Raspberry Pi 2 with latest raspbian).
The system doesn’t find the arduino during the boot sequence, for some reason. I need to plug the arduino out and back in for it to work (and also restart pimatic, of course)

This isn’t an issue with pimatic, but the system itself. Anyone else had this kind of problem? Any proposions for a fix?

The device is not recognized at all from lsusb or any other method, it simply doesn’t exist. Starts working immidiately after replugging. This is an issue because I would need to physically be present during reboots.

The Arduino is a nano clone. I have yet to test with my other arduino, but I think the issue is not related to the arduino. Not sure.

Thanks!

@kitsunen Hi! I’ve had the same problem with my Arduino Nano.
Some guy found the the solution and posted it in another forum. See here: post of achrn: https://www.raspberrypi.org/forums/viewtopic.php?f=91&t=59420

SOLUTION: You have to solder a bridge between pin 25 and 26 on the FT232LR (see embedded pics).

Now it works fine for me.

Best René.

And then you don’t need to unplug the Arduino anymore after a reboot?
And Pimatic can connect after reboot?

Did i understand it right?

mfg
Chris

@chris yeah!

Ok thats fine.
Comes on the ToDo-List.
I will link my older post in this one. Because here is the answer.

mfg
Chris

Huh! So most of the “cheap clones” dont have the fix applied. Makes sense that only one of my nanos works on reboot. Must be a better model then!

Got to try this fix! Thanks.

@chris Sorry didn’t see that post. I’m quite new to this forum

@kitsunen Hmm. Perhaps it’s a clone issue. Don’t know. But for me this solution works fine. So give it a try…

am curious too if this will solve the ftdi problems in general.

@leader21 should I test anything with my “modified” nano Arduino clone?

well there have been issues that the ftdi nanos were either not found or troubles with homeduino upload etc. so if it runs with this patch, i guess this will solve the issues.

Will definitely try this, cause I had problems with a ftdi nano too

My answer is:

Works!

Like @rmathieu Said.

Great.

all my problems with the nano are gone as i bought a uno…

@chris fine.
@noxx buying a new car 'cause the old one has a full ashtray

@rmathieu
yes, why not?

i had more as one problems with the nanos.