Speed Control

A project log for LED Matrix Fairplay hack

Creating a new display controller for a Fairplay scoreboard LED matrix

willbadenwillbaden 09/03/2014 at 02:240 Comments

For an input, I used a 10Mohm pot to control the speed of the scrolling.  This fed into AN0 of the 16F870 through a 10kohm resistor.  The pot is installed on the lower side of the panel for easy access.

A jack was added to aide reprogramming of the PIC.  The is located @ the top of the perf board in the picture below: