USB WiFi Monitor

This app allows you to capture raw WiFi frames in the 2.4 GHz band on stock kernels without root. Forget about configuring a monitor mode driver on your PC and start using your Android device!

IMPORTANT this app requires a USB WiFi adapter with the AR9271 chipset, connected to your Android device via an OTG usb cable. See below for more details.

Features:

- Show the nearby access points and stations

- Capture WiFi management/data frames and save them to PCAP file, e.g. beacons, probes and QoS data (control frames not captured)

- Switch between automatic channel hopping and fixed channel

- Supports 802.11bgn (ac not supported)

Instructions:

1. Buy a WiFi USB adapter based on the AR9271 chipset, e.g. the Alfa AWUS036NHA. You can find cheaper unbranded adapters in online stores

2. Connect the adapter to the Android device via a USB OTG cable. Non-OTG cables will not work!

3. A popup will open. Grant "USB WiFi Monitor" the permission to access the USB device

4. Hit the Start button in the app to start capturing frames

If the capture is stopped due to an error, you need to unplug and re-plug the adapter.

API documentation: https://github.com/emanuele-f/UsbWifiMonitorApi