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https://www.b4x.com/basic4android/images/SS-2018-03-05_11.16.42.png Before we start: External storage means a real sd card or a connected mass storage USB device. This class can also be used to access the secondary storage (File.DirRootExternal). This becomes relevant with newer versions of Android that restrict direct access. It has nothing to do with runtime permissions. You can use RuntimePermissions.GetAllSafeDirsExternal to directly access a specific folder on the SD card. You can use...

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... prefix mode is not supported. The library is based on the same open source project Android USB host serial driver library as the existing UsbSerial library but no longer needs a separate jar file... the original UsbSerial library are : UsbPresent, HasPermission and RequestPermission are added to...

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 initialize felUsbSerial, configure it and start reading. Sub Process_Globals Private usbserial As felUsbSerial Private manager As UsbManager Private bc As ByteConverter End Sub Sub Globals...

different communication channels (USB, Bluetooth SPP, BLE, LAN) you can download the ble3 library from... version, such as LAN, USB, NFC please contact me privately. OS Bluetooth SPP BLE (Beacon) USB...
link: Hi, the demo version has some limitations. It prints every two minutes. (See post #1) When you see t...
link: In my case I am testing Xprinter XP-420B, with this example and the last library I have come very cl...
link: 1.09 Disconnect method now flushes before closing Great, can yo send me the update?...

Modern Espressif's MCUs esp32 models are with built-in USB bridge UART controller (instead of external USB bridge IC with classical ESP32, CP2102 or CH340... chips). And the logs and data exchange in whole depends directly on the config where "USB CDC on boot" must be enabled. 166616 But when it is enabled - the MCU at start is waiting for you will establish a USB COM-port... 'v.1.3 Private Sub Process_Globals End Sub Public Sub EnableUSB_CDC_Logs(BaudRate As ULong...

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...

This prints all informations about the attached USB storage. AddPermission(android.permission.READ_EXTERNAL_STORAGE) AddReceiverText(USBService, <intent-filter> <action android:name="android.intent.action.MEDIA_MOUNTED" /> <data android:scheme="file"/> </intent-filter>) Sub Service_Start (StartingIntent As Intent) If(StartingIntent.Action = "android.intent.action.MEDIA_MOUNTED") Then Log("Media mounted:"...

Android 3.1 and above devices support Usb host mode. With this feature you can connect to regular client usb devices. Some devices are automatically recognized by the OS and are simple to work... with a Usb cable. The host device reads the client device logs. This is done by implementing one feature of Adb debugging, similar to the Usb debugging driver. http://www.b4x.com/basic4android/images.../basic4android/images/usbhost_1.png As the Usb host features are only available starting with Android 3...

The `Log2USB` function is designed to facilitate logging within Android applications by writing log entries to a text file (`SystemLog.txt`) located on the first accessible USB drive without.... - The function scans the `/mnt/media_rw/` directory to find available USB drives. - Upon identifying an available USB drive, it constructs a timestamped log entry using the current date and time... a file named `SystemLog.txt` on the root of the first found USB drive. - The function utilizes root...

Buongiorno Ragazzi, ho la necessita' di poter trasferire un file da android tramite un'app B4A a PC via cavo USB collegato al pc Abbiamo un esempio di come fare? Grazie Mille a tutti...