Flutter usb serial with arduino, Not detecting CH340

Question

I'm trying this package usb_serial to communicate with my hardware devices like Arduino, Esp8266, Esp32, FTDI board, etc.,

Right now I'm using a board with a CH340 chip in it. Device details are matching as mentioned in device_filter.xml

In device_filter.xml

Am I missing somthing here, please help me if you know. Thank you

score 0 · Accepted Answer · answered Mar 12 '22 at 20:34

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I found the solution.
In the example code I commented subtitle: Text(device.manufacturerName!), line.
The reason is I was using an unbranded CH340 chip, which did not have the manufacturer's name on it.

answered Mar 12 '22 at 20:34

Sanjay TM

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score 0 · Answer 2 · edited Jan 20 '23 at 14:05

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I too had this problem and commenting out the subtitle line fixed it for me.

P.S. I added a null check instead...

subtitle: Text(device.manufacturerName ?? "Unknown Manufacturer"),

edited Jan 20 '23 at 14:05

Suraj Rao

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answered Jan 20 '23 at 14:03

Martin

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Flutter usb serial with arduino, Not detecting CH340

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