Build this candy bowl you can monitor remotely over a WiFi network so trick-or-treaters never leave your home empty handed. A simple infrared light sensor detects when the bowl is empty or full, and a CC3000 WiFi chip exposes the sensor data to your wireless network. You can telnet to a simple server running on the Arduino and ask it if the bowl is full of candy!
This tutorial is a great demo of using the CC3000 breakout/shield in server mode, and also with mDNS so you don’t need to know the IP address of the module!
Uses the Adafruit CC3000.