Dmitri Nguyen and Brian Song
Brief Project Overview
Our project consists of two parts: the game, Simon, and the fan RPM meter. Our Simon game uses LEDs to light up the given pattern. While the LEDs light up, sound is also outputted through a speaker; each of the four LEDs correspond to a different sound frequency, resulting in a different sounding “beep” whenever an LED is lit up. The speed of the game is controlled by an AD converter which converts voltages between zero and two. This also controls the speed of a pulse-width modulated fan and the brightness of an LED light built in parallel with the fan. The user controls the game using the directional pad of a Nintendo controller. The UART is used to send messages to the user and displays the results of the game. Each game is set and reset by pressing S1. The RPM meter is implemented by attaching a light detector on a fan and using “shiny” tape to serve as the light source. The piece of tape is attached to one blade of the fan and the light is detected each time the blade goes underneath the sensor. S1 initiates a measurement and also can change the speed of the fan using a potentiometer. The results of each measurement are displayed through the UART. Perhaps the most difficult part of this project was interfacing with the Nintendo controller properly.
