Unix-style Fortune teller text display on LCD
A mini project for ECE 4180 - Embedded System Design at Georgia Institute of Technology. The idea of this project is to write on an LCD screen a random quotation from a database just like a Unix OS.
In this project, we used a few components including: an uLCD-144-G2, a SD Card and a pushbutton. The uLCD-144-G2 is a smart color LCD display board with a serial interface and can be found at SITE AND SITE for X dollars. The SD Card is a good option to store files with low cost. It can be found at SITE AND SITE for X dollars. The pushbutton is simple switch mechanism. The way this project works is that there is .txt inside the SD Card containing several quotations and whenever the button is pressed it randomly chooses one of them to be displayed in the LCD. The uLCD is connected as shown in the table below:
The following table shows how the SD Card was wired:
The pushbutton was wired with a pull down resistor, this way we have the input pin connect to ground when not pressed. We use Pin 21 for this component.
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