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> > If you connect the USB while charging for more than a certain period of time, the device may sometimes be unrecognized. > > Do you think your phone...

We are utilizing RS485-USB converters connected to tablets for monitoring devices. The system operates by sending requests from the tablets to each device, with each device responding back. Continuous monitoring...

If FTDI USB NMC works on Android, you can communicate directly by treating it like a serial connection. Communication between smartphones is possible by developing an app. https://ftdichip.com/products/usb-nmc-2-5m/ Data Rates:...

If you want to use Android Open Accessory, you need to emulate USB Accessory, but it seems to be close to impossible due to Android security. If you connect two...

I'm sorry. I tested it. It communicates via OTG. It seems that you need to communicate using controlTransfer or bulkTransfer in file transfer mode. The current library is a serial...

If you use developer mode, various approaches are possible by using libraries that implement ADB. https://github.com/MuntashirAkon/libadb-android

First of all, I am developing on Android 11 or higher. SDK uses 34. Direct control of OTG failed. It seems difficult to bypass Android's MTP service in the MTP...

Tablet information.(version. Etc) I had the same symptoms with a cheap Chinese device. In some cases, charging and use at the same time may not be possible due to the...

There is no image. The following products had the same symptoms. Teclast P25 Symptoms are the same as in the link. However, it does not seem to be the same...

 This is not a problem with the library. However, it is written for the purpose of sharing the content. In the Lenovo TB-J607F product, depending on the USB Hub,...