74*245 Motor Driver

H-Bridge Driver

Simple PWM Gen.

Handy Method Measuring RPM

Measuring RPM via Photo reflector

Introduction to Robotic

DC, Stepper,and Servo Motor

Microcontroller Tutorial

Computer Interface
Tutorial
.............more links

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After leaving this progect hanging for a while I decided to finally make some motor mounts. The mounts are made from tubing found in my junk box that fit the pager motors perfectly.

The yellow stuff on the motor shafts is heatshrink tube. I find this stuff makes the best feet. One of the things I like about this photovore is that it's solarcell is tilted forward. Since it will be heading towards the brightest source of light, it just makes sense. I plan on changing the cap and solarcell to larger units to increase activity. With the 2200uF cap, it charges very quickly but it's steps are very small.

The finished photovore. Set it up facing towards a 100W light bulb and he should start popping towards it. Use the potentiometer to make fine adjustments until he walks dirctly to the light. One of these days I'll detail touch sensors...one of these days...

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