"Fuzzy" Project

I am fascinated by the concept of "Fuzzy Logic" for real time control of processes. This application is a simple introduction to it (as well as the PIC18CXX2) and will give you an idea of how Fuzzy Logic applications are developed. While you require "fuzzyTECH" to run this application completely, it can be used as a basis for understanding how PIC18CXX2 microcontroller applications are created.

Click Here to look at the PICmicro MCU source code.

The circuits used for this application are:

The bill of materials for this application is listed in the table below.

Part Description

PIC18C452 PIC18C452-JW

7805 7805 in TO-220 Package

MAX232 Maxim MAX232

IRF510 IRF510 N-Channel MOSFET in TO-220 Package

OPB804 OPB804 "Slotted Opto Isolator Switch" or equivalent modified as described in the text

LED 8x LED, Individual or use 10x LED "Bargraph" Display

4 MHz 4 MHz Ceramic Resonator with Internal Capacitors

10K 2x 10K, 1/4 Watt Resistors

220 220 Ohm, 1/4 Watt Resistor

10K Pot 10K Single Turn Potentiometer

0.1 uF 2x 0.1 uF, 16 Volt Tantalum Capacitors

1.0 uF 5x 1.0 uF, 16 Volt Tantalum Capacitors

Miscellaneous Prototyping Card, Wiring, +12 Volt 500 mA Power Supply, 8x Screw Terminal