Sensing deliveries in your physical letter box

• /ble - Arduino BLE using nRF8001
• /sensors - Sensing light and proximity using Arduino Uno, Arduino IDE 1.5.7, LDRs and VCNL 4000
• /android - Android App

1. Sensors
   • VCNL 4000 with Arduino Uno
   • Smoothing raw jittery sensor data
   • Low Pass Filter algorithm
   • Smoothing sensor data with low pass filter
   • Test functionality of a photo resistor with Arduino

• Sensors: copy the folder /sensors/letterbox to ~/Documents/Arduino/letterbox
• Schematic: open the file /schematic/letterbox.fzz with Fritzing

##Wiring the hardware

Fix this setup on the ceiling of the letterbox

VCNL 4000 pins:

##Setup