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This is an expanded version of the original UsbSerial library. It has added support for Prolific PL2303 USB to serial converters, Android ADK devices and USB permissions. All devices use the same simple interface intended to be used with AsyncStreams and AsyncStreamsText. Note that AsyncStreams pref
link: UsbSerial does support CDC devices: https://github.com/mik3y/usb-serial-for-android/wiki/Compatible-Serial-Devices so it should work.
link: I've checked my Additional Libraries folder and I only have UsbSerial.jar and UsbSerial.xml. I guess src is the Java source code.
link: I tried v2.4 of USBSerial. Port1 indicated a Qualcomm and port 2 indicated an FTD device. Debug messages stated error opening port 1 and 2. I ran the

B4J Server WebSockets - jServer supports both HTTP requests and WebSockets. Can be used as a backend solution with WebSocketClient libraries. Client and server maintain an active and symmetric connection. Supports web applications: ABMaterial. Can run in the local network or over the internet. The

UsbSerial is irrelevant as far as Fillippo is concerned. It is not a replacement for the USB library. He is not dealing with simulated serial ports, he is dealing directly with USB devices, the USB library is a wrapper round the Android USB APIs. He needs the USB library modified to add the now requ
link: Hi @jahswant , I never used the library "UsbSerial" because it never worked with my USB device (Arduino-Nano, Leonardo USB, ...). Even now it does no
link: Hi @jahswant , thanks for the answer. I also use in my app the library "felUscbSerial", if i replace the lirary "USB" with "UsbSerial26" then the li
link: Hi, same problem with the Internal Library "USB" version 0.98 as in the thread: https://www.b4x.com/android/forum/threads/sdk-31-and-usbserial-reques

UsbSerial V2.5 is available It is identical to version 2.4 but adds the required flag for Pending Intents when targeting SDK 31+. https://www.b4x.-library-2-0-supports-more-devices.28176/#content

Hello, As already mentioned in another thread, with targetSdkVersion="31" (mandatory for Play Store updates after 1st or November), I get the following error when trying to request permission for USBserial. Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be
link: Post your permission code that is failing together with the error and stack trace from the Log so we can see where the intent is generated.
link: The error appears in the USBserial library in the line 'manager.requestPermission(usbDevice, PendingIntent.getBroadcast((Context)BA.applicationContext
link: No more errors. Now is working perfect with targetSdkVersion="31". Thanks a lot. Initially tried to replace USBserial library with felUSBserial, but

felhr.usbserial.SerialBuffer Working with class: com.felhr.usbserial.SerialInputStream No ShortName annotation found for class: com.felhr.usbserial.SerialInputStream Working with class: com.felhr.usbserial.SerialOutputStream No ShortName annotation found for class: com.felhr.usbserial.SerialOutputSt
link: Used to be worse! When I was writing UsbSerial the chip datasheets were treated as proprietary and you had to reverse engineer somebody's driver to ge
link: This is ringing a very faint bell. When I wrote the original UsbSerial library I found an extra two bytes at the start of each packet which apparently
link: \com\felhr\usbserial\UsbSpiInterface.java. Loading source file .\com\felhr\usbserial\XdcVcpSerialDevice.java. Loading source file .\com\felhr\utils\He

I need data to detect if the printer have low paper or the paper runned out. We have a kiosk application and it's important that people know that the paper is over (or almost).
link: Hi there, I'm using UsbSerial to connect to a usb thermal printer device. I can connect to it and I can print with success. After I've connected to
link: Why do you need new data from printer? You generally send the TOPrint to the printer and it does the job !
link: Using AsyncStreams I can start listening with: astreamsUsbRead.Initialize(UsbSerial1.GetInputStream, Null, "astreamsUsbRead") (only read, no write)

In that case it looks like usb.Open is returning usb.USB_NONE (0) which means that UsbSerial has not recognised the device. This is probably because it does not recognise at least one of the Driver, Product or Vendor Ids. It looks from your photo that it might be a CDC ACM type device so try this be
link: i have been used felUsbSerial and UsbSerial lab but they not working just giving me details without any proper connection. Send and Stop buttons are
link: Hi Guys Im using external GPS dongle connected to my tvbox device via USB port, it working perfectly with app called GPS Connector https://play.googl

What's New Since Last Week (18 Oct 2024 to 26 Oct 2024) B4X Social GreenApi - WhatsApp API Green API is a platform that allows you to send and receive WhatsApp messages through a stable API. https://www.b4x.com/android/forum/threads/b4x-greenapi-whatsapp-api.157101/ B4A Serial comm/USB UsbSeri
link: B4A Serial comm/USB OBD2 Rev Counter USB ELM327 Rev counter using OBD2. Rquests RPM (PID 010C) every 0.2 sec. ELM327 V1.5 to USB. https://www.b4x.-rev
link: What's New Since Last Week (15 Mar 2021 to 22 Mar 2021) B4X Library YouTube DL Youtube ExoPlayer B4J Tutorial Audio/Video jOpenCV Tutorial 2 - I
link: B4J Serial comm jSerial The jSerial library allows you to open and communicate with other devices through the computer COM ports. https://www.b4x.-lib

This library wraps the following open source project: https://github.com/felHR85/UsbSerial (MIT license). It is an alternative to the UsbSerial2 library. The following devices are supported: CP210x, CDC, FTDI, PL2303 and CH34x. Usage is simple. You find the UsbDevice with USB library and then ini
link: You can either use UsbSerial library or this one.
link: & z ) usbserial.Initialize("serial", UsbDvc, -1) <-- Line55 usbserial.BaudRate = 57600
link: Hello: When I try to complie the example I get the following error: usbserial.Initialize(\ javac 1.8.0_102 src\b4a\example\main.java:375: error: pack

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