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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...
link: Try this and post if it works or not Great @agraham Work with out problem 👍...
link: Try this and post if it works or not...
link: manifest i have: android:targetSdkVersion="34" With the following code: If usb.UsbPresent...

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...
link: V1.12 - BUFFER_READ_SIZE / BUFFER_WRITE_SIZE fields. Default value is 16 * 1024. You can change thes...
link: Please start a new thread for this question....
link: if the user disconnects the USB cable, what would be the best way to detect this?...

Hello everyone, The usb-serial-for-android library is a popular open-source driver collection designed for Android devices acting as a USB host. It enables communication with various USB-to-serial...
link: Hello everyone, Updated library to V1.10 There are a couple of small improvements, but the major fe...
link: Updated library to V1.01...
link: Hello everyone, The usb-serial-for-android library is a popular open-source driver collection...

Yes B4A is seriously awesome: So thanks to @DonManfred I decided to brake out my old EPoS equipment to play about with the USB Serial library 2.0. With a quick hint from @Dman about storing the logo, everything came together relatively quickly. A few years ago I created a Windows program that prints a receipt (without logo), Opened a cash drawer and printed to a pole display (see bottom image... with the Serial Library for Bluetooth printing and opening the cash drawer. Test app - Not for the public...

Hello In my B4R program I log various bits of information to send back to the host device. On my PC the messages are in one block. On my Android device they seem to come in chunks: ToastMessageShow( bc.StringFromBytes(Buffer,"UTF8"),False) The string "hello" comes as two messages "hell" and o. Why is this? Do I need to use stringbuilder in my Android app and explici...

When UsbSerial lib for B4J?:oops: My life would be simpler:):) I am not able to print in ESC/POS printer from B4J :mad::mad::(:(:(:( I have tried with this but no ports availables with bluetooth OFF in my PC. With bluetooth ON, 3 COM ports appear!!.... No bluetooth, no coms port? What can I do? Thx in advance:)...

I know there is the HasPermission and RequestPermission function built into the library, but I am tr...
link: That code looks correct as far as I can remember as it is a long time since I used USB serial...
link: That code looks correct as far as I can remember as it is a long time since I used USB serial...
link: that is an instance of UsbSerial. There is no actual permission to explicitly request access to a USB...

Hi There I am testing USB serial using the sample code If manager.GetDevices.Length = 0 Then Log("No connected usb devices.") Else Dim device As UsbDevice = manager...
link: Thanks Erel, definitely for my next project....
link: Switch to B4XPages and all such issues will disappear....
link: Thanks Erel, works great! But this is what I have noticed, if I disconnect the USB cable and...

Hi There, I am trying the felUSBSerial library and I am wondering if there is a reliable way to che...
link: Thanks for your reply...
link: No....
link: Thanks Erel, is there some sort of an event instead of polling?...

Good Evening Gays i have been tested these both lab without any positive result. https://www.b4x.com/android/forum/threads/felusbserial-alternative-usb-serial-library.62216/page-4#posts https://www.b4x.com/android/forum/threads/usbserial-library-2-0-supports-more-devices.28176/ just showing me this msgs after word not working 156279156280...