Lab46 Wiki

Basically, LEDs are just tiny light bulbs that fit easily into an electrical circuit. But unlike incandescent bulbs, they don't have filaments that burn out, they use less electricity, and they don't get especially hot. They're illuminated solely by the movement of electrons in a semiconductor material, and they last just as long as a standard transistor. The life span of an LED surpasses the short life of an incandescent bulb by thousands of hours. Because of these advantages, tiny LEDs are one of the most popular technologies used to light LCD TVs.

This project is a miniature and extremely basic version of minesweeper using the LED 8by8 Matrix and the joystick. The code selected a random LED and when the Joystick control gets closer to the selected LED a buzzer will sound higher pitched and faster between sounds. To select the LED that one believes is the answer press down on the joystick (axis-z). A red or Blue LED lights up, Red means the answer is wrong, Blue means the answer is correct.

An LED light is an electronic device that emits light when an electric current flows through it. So, an LED converts electrical energy into a light source. LED lights can also be used as an ON/OFF switch for a specific duration of code. A proximity sensor is a device that can detect or sense the approach or presence of nearby objects without touching it. These sensors also convert the information that is received from the approach or presence of the objects into an electrical signal. A Liquid Crystal Display (LCD) is an electronic device, which is frequently used in many applications for displaying information in a text or image format. An LCD is used for displaying the alphanumeric character on its screen. Alphanumeric characters are the numbers 0-9 and letters A-Z (both uppercase and lowercase). The LCD display is consists of 8-data lines and 3-control lines which are used for interfacing the LCD display with 8051 microcontroller.