Apply USB Network Adapter on Android

2023-11-09

This section takes QuecPython EC200UEU_AB EVB as an example to demonstrate how to use a USB network adapter on an Android phone.

Note 1: The ECM mode can be directly loaded and used in Linux, Android, or IOS without a driver.
Note 2: In ECM mode, the MAC address of some module models may not be recognized by the phone. In such cases, you can refer to the corresponding USBNET section on the Wiki and update the available MAC address with MAC configuration interface .

Prepare the development environment

Please refer to the Getting Started section (skip if you are already familiar) to set up the development environment.
You will also need a mobile phone and a cable that can be converted into a mobile phone interface.
Open the QPYCOM tool and connect the device

Power on the module, connect to the computer via a USB port, and use QPYCOM tool to connect to the python interface of USB.

Write a startup script for the USB network adapter

Please refer to the corresponding USBNET section on the Wiki for specific USB network adapter interface.
Create a new file named main.py and enter the following content:

# Import required packages
from misc import USBNET
from misc import Power
import sim
import dataCall
import utime

def usbnet_start():
    # Check if the USBNET working mode is ECM, if not, set it to ECM and restart the module.
    saved_type = USBNET.get_worktype()
    if saved_type != USBNET.Type_ECM :
        USBNET.set_worktype(USBNET.Type_ECM)
        Power.powerRestart()
    utime.sleep(2)
    # Check SIM card status, exit if no SIM card is inserted.
    sim_info = sim.getStatus()
    if sim_info != 1:
        return
    # Continuously check the network registration status, and enable USBNET when network registration information is obtained.
    while True:
        lte = dataCall.getInfo(1,0)
        if type(lte) == tuple and lte[2][0] == 1:
            if lte[2][2] != '0.0.0.0':
                break
        utime.sleep(1)
    # Enable USBNET functionality.
    USBNET.open()

usbnet_start()

Import the startup file

Drag the written script into the module file system's usr partition via the QPYCom file panel. The main.py file is executed during startup.
Connect the USB to the phone

After configuring the startup on the computer, connect the USB port to the Type-C port on the phone and power on the module by pressing the PWRKEY button. Please prepare the adapter cable yourself.
Connect to the phone network

Once the module is connected to the phone and powered on, you will see a <···> icon in the status bar of the phone, indicating that the USB network adapter has been recognized by the phone. You can now open the browser and access the network.

Apply USB Network Adapter on Linux

Network Configuration