The probe can only be captured in the case of a packet sent by the mobile phone, which is a prerequisite. If you do not use the mobile phone for 2-5 minutes for a long time, the mobile phone will first turn off the screen. At this stage, the wifi can communicate normally, the communication frequency is reduced, and the probe can capture the MAC address of the mobile phone. If it takes another 5 minutes or so, there is no interaction, the communication module will be closed, and there will be no packet transmission, which will not be detected.WiFi probe function introduction:
1. Even if the customer does not connect to WiFi, as long as the WiFi option of the mobile phone is not turned off, the WiFi probe can detect the signal transmitted by the customer's mobile phone and can be used for passenger flow positioning, new and old customer identification, customer mobile phone brand recognition and other data analysis.
2. Full channel, all packages are fully captured (can detect Apple mobile phones, Apple mobile phone only random MAC during the detection phase, other stages are real MAC).
3. Even if the phone is connected to WiFi, it can be detected (the general router modified probe can't do it).
4. From the WiFi module design, firmware development, positioning algorithm, probe supporting PC software, APP software all aspects of the company's independent research and development, so can provide a full range of technical support and customization needs.
5. High-end version 2.4G, 5G full crawl, higher than the ordinary product dozens of times the detection rate, even if the phone is connected to WiFi can detect.
Multiple ways of using:
a) The serial port module can be directly plugged into the PC and used on the Android phone.
b) WiFi transmission module, transmitted to the server via WiFi network (server address can be configured).
c) The local storage version can be stored locally to the USB flash drive.
d) The collected data can be transmitted to the server by inserting a network cable (the server address can be configured).Pin number | Pin name | Type | Function description |
1 | STATE | I/O | You can customize the firmware to develop the corresponding functions as needed. |
2 | RXD | I/O | GPIO3 |
The module has a 22Ω current-limiting resistor in series and can be connected to an external 5.0V level. |
Can be used as a UART Rx when programming Flash |
3 | TXD | I/O | GPIO1 |
The module has a 22Ω current-limiting resistor in series and can be connected to an external 5.0V level. |
Can be used as a UART Tx when programming Flash |
4 | GND | P | GND |
5 | VCC | P | Module power supply: 3.3V~5.0V, 5.0V is recommended |
6 | EN | I | Chip enable, active high, the chip works normally; low level: the chip is off, the current is very small |