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altera2015 / usbserial

Flutter Android USB Serial plugin
BSD 3-Clause "New" or "Revised" License
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Chinese arduino with Ch340 not working #53

Closed UzairJawaid closed 2 years ago

UzairJawaid commented 3 years ago

I am trying to communicate with arduino, i have chinese version. but this code is not supporting that. though code works perfectly ok with esp32.

MiladEsp commented 2 years ago

I'm able to use the library with a CH340 with the following entry in the device_filter.xml. Add this to your file and try again. maybe it'll resolve your problem.

<usb-device vendor-id="6790" product-id="29987" /> <!-- 0x7523: CH340 -->

asada03 commented 2 years ago

I am having the same problem with a K3 Pro Body Thermometer that uses the CH340. This chip has a Vendor Id: 1A86 and Product ID:7523 The app I am developing can connect to other devices (ej. a device with the FTDI chip) but not with this one. I also downloaded the Serial USB Terminal app for testing and that app can connect with the thermometer with no problem, but not with my app that uses the usb_serial plugging. Please Help.

MiladEsp commented 2 years ago

@asada03 if the Terminal app can connect to your thermometer, the code for a simpler version of that app exists, which I believe uses the same device_filter.xml. I think you can find the link to its repo in the About section of the Terminal app.

From that repo, check which one of the filters in the XML file match with your specific device.

Hope this helps.

asada03 commented 2 years ago

Thank you @MiladEsp. I will try that!