If you'd like to get an idea of how the Motor Driver works, study the 74*240 Reversible Motor Driver article in Solarbotics.net. You don't really need to understand how this all works. If you follow the instructions and build it correctly, it'll all work at the end. Don't worry if it seems too complicated because I'm going to fill in the schematics (wiring diagram) gradually in the order that we're building it.
Note: We'll be soldering connections and components on both the top and the bottom of the chip, so when you follow these steps, you have to be 100% sure of which way you're looking at the chip before you solder anythig. Check twice and compare the schematic and the chip before you solder. -- De-soldering is always harder than soldering, so check twice before you solder and you won't have take things apart to fix them.
Prep the 74AC240 chip as you did the 74AC14.
Send any questions or comments to raydiaz8@yahoo.com
Copyright © 2002 by Ray Diaz. All Rights Reserved.
BEAM Patents by Mark W. Tilden.
home | microcore | motor driver | body | legs | videos