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altera2015 / usbserial

Flutter Android USB Serial plugin
BSD 3-Clause "New" or "Revised" License
124 stars 83 forks source link

The library does not support ABACUS ELECTRICS Optical Probe #7

Closed vnlevanduoc closed 5 years ago

vnlevanduoc commented 5 years ago

Hello guys!

I am learning about USB serial in Flutter language and see that your library is supporting this issue

But I import the library and run the example code, I get an error like this

When running to the section: "_port = await device.create ();" then it reports an error "[ERROR: flutter / lib / ui / ui_dart_state.cc (148)] Unhandled Exception: PlatformException (UsbSerialPortAdapter, Not an Serial device., Null)"

Link driver: http://www.abacuselectrics.com/usbsoft.htm

Can you support me?

p / s: please I am not fluent in English so thanks to google translation, I hope you guys will apologize

THANK YOU!

vnlevanduoc commented 5 years ago

I tried adding one parameter "ftdi" to the "device.create ()" function, the program reported the connection

But I want to send and receive back as a byte, what do I use?

in the default android library set "android.hardware.usb" I have previously seen the "connection.bulkTransfer (usbEndpointOut, send, send.length, SEND_TIMEOUT) method;"

Are there similar functions in this library?

altera2015 commented 5 years ago

This library is higher level than the bulkTransfer call. UsbSerial provides a wrapper layer exposing the Serial USB devices, not the raw devices.