USB-OTG-CH340-UART-interface that is a library communication with USB convert uart, that module is ch340 model, it not need root of your phone.
Copyright (C) [2018] [x-sir, USB-OTG-CH340-UART-interface Open Source Project]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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