ZTerminal is a software package for the Android operating system. It allows you to send and receive data using a USB connection. You don't need to install anything. All you have to do is to download the app, install it, and start using it.

You can use it to send serial commands to a device and receive data from it. It is a useful tool for developers and engineers who need to communicate with their devices. You can use it to test your applications and devices.

ZTerminal supports many different protocols. You can choose between the most common ones: USB, serial, and parallel. You can also use it to connect to the Bluetooth protocol.