Current Part:
16x2 LCD
Breadboard
5kΩ Trimpot
Jumper Wire
SIPs
Parts List Details
Luckily the list of parts for this project is very short. The main components are the 16x2 LCD and the Arduino UNO, but I've described everything else in more detail below.
Arduino UNO
This is the bare bones and basic CPLD dev board that I developed a few years ago. The core components are the CPLD, power circuitry and programming circuitry. The additions from the previous cpld analog to digital converter project were left on the board since we'll be using them in this project.
16x2 LCD
This is the 128 Macrocell CPLD that we'll be using to output the digital PWM signal to control the 10 LED bar fading-in and fading out.
5kΩ Trimpot
We will use this LED bar to output both the exact 8-bit value that is converted from analog to digital. A resistor network will be connected up to the LED bar to limit the amount of current flowing through.
Breadboard
Since the cpld dev board is built on protoboard, we need to use sockets, SIPs and wire wrap to connect everything together.
SIPs
SIPs are used to hold all the ICs in place and to make a large connection for the motors ontop of the board. Additionally SIPs are perfect for wire wrapping everything together.