User-Friendly File Sharing for a Remote Location
A battery-powered WiFi hotspot can provide useful services like file sharing even when you're off the grid. A Pi Zero 2 W as the hotspot with ownCloud installed does the trick.
WiFi
Listener
The ESP8266 is in the core of many IoT devices. Thanks to ESP8266 sniffer mode, you can monitor the WiFi medium for diagnostics and optimization.