Hi there, I am willing to start a project to research how many 'WiFi' devices are in the building, where and 'how long' in order to design WLAN properly.

I want to buy following router: TP-Link TL-WR3020

On this router I will install OpenWRT to:
- put radio in Monitor Mode

And to install and run needed packages to:
- capture network probes from WiFi devices
- scan on multiple channels (1,6,9,11)
- log and save probe request (e.g. on usb flashdrive) in csv format

If possible, send realtime or per 15min the logfiles about probe request to a server (ftp or mysql)

Can anyone advice in which type of packages I need - or are needed in order to realise above features?

Thanks in advance!

See http://edwardkeeble.com/2014/02/passive-wifi-tracking/

Okay thanks for this link - still some questions even reading this article:

- how to scan mutiple channels?
- how to export the data logfiles from probe requests?
- is there a way to send the logfiles (connected to LAN) to a server - ftp server ? Instead of keeping it on the USB flash drive?