Gary has taken a Raspberry Pi 2, a Pi NoIR Camera and an Infrared LED light source and created a portable ‘trail camera’. A 12V power source provides the necessary juice for the LEDs and a PiBorg BattBorg steps the 12V down to 5V for the Raspberry Pi. There’s a bit of circuitry on a proto board to add buttons and LED indicators and the UI is shown on a small Adafruit TFT screen. You can read how he did it over on his blog.