

A similar question was answered here for sniffing MAC addresses from clients connected to 802.11 wireless access points. IStumbler for Mac – WiFi analyzer app for Mac will display networks according to their types, i.e. WiFi Scanner – WiFi analyzer app for Mac that also detects access points and clients in ad-hoc mode in case the SSID is broadcasted. It is a great project that listens silently to the WiFi 2.4G band looking for. In this article, I provide the Arduino sketch code to morph the WiFi device into a promiscuous WiFi scanner that will display both client and AP MAC addresses, broadcasts, signal strength and channel. Wifi sniffer free download - Sniffer, Sniffer, IP Sniffer, and many more programs.
