Ultrasonic Sensor // Nick Ricci & Naoki Hisamoto

We used an Ultrasonic Range Sensor from Radioshack to be our initiating sensor. Our initial plan was to use a Raspberry Pi and have it use shape recognition in order to recognize the shape of a plate. This recognition would send a serial signal to the Arduino using Case to begin lighting and trigger the camera. However, we came across many issues with the Raspberry Pi and decided we would do everything on the Arduino. We came across this sensor as well as infrared emitters and detectors. However, we decided to use the Ultrasonic Sensor because we felt we understood all of the functionality of this sensor better. The sensor is coded to read distances and then trigger all the rest of the code when a certain distance is received or otherwise just keep the LEDs dim.