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Tuesday, June 15, 2010

Controlling The Real World With Computers

This site uses hands-on experiments to show the basics of how real things in the real world are controlled with computers.

Controlling The Real World With Computers

This site is also for anyone who is the least bit curious about monitoring and controlling such things as motors, lights and switches, or recording and playing everything from sound to the arm position on a robot.

Controlling The Real World With Computers

Experiment 7 - Bi-directional Control Of Motors And The H-Bridge

It would be useful to be able to run a motor in either direction. That's simple with a motor of the type that's been used in the experiments thus far. Reverse the DC power connections on such a motor and its shaft will rotate in the opposite direction. One way to control direction is to use switches arranged in the following manner:

Joe Reeder

Monday, June 14, 2010

VeeCAD for Stripboard with Auto Router

VeeCAD takes a schematic generated netlist and assists you to build a layout - but on stripboard (Veroboard). The usual design tools are provided: netlist import, component footprint definition, component positioning, wiring and connectivity check.

VeeCAD for Stripboard with Auto Router

Engineers and hobbyists use VeeCAD for prototypes and small quantity builds, saving hours planning layouts on graph paper.

Friday, June 11, 2010

Transistorized from - PBS Online - Tutor

Transistorized from - PBS Online - Tutor

Lesson 2: Scientists at Work
Students select an electronic invention and research who and what contributed to it.

Lesson 4: Using Transistors
Students build circuits to see how transistors function as switches or amplifiers

Peek at some of Brattain and Schockley's Lab Notes

Thursday, June 10, 2010

Electricity and Magnetism - Molecular Expressions

These Tutors which are Interactive as well are useful for Students and Enthusiasts to enhance the Text Book reading.

Electricity and Magnetism - Molecular Expressions

These pages are good for any person who want to be more familiar with magnetism and electricity. This probably means everyone. Today Electricity Basics is General Knowledge and also an Absolute Essential.

Museum of Electricity and Magnetism - From the world's first "south-pointer" (an early compass) to modern instruments such as the magnetic force microscope, the Museum of Electricity and Magnetism on our sister website at the National High Magnetic Field Laboratory will introduce you to a variety of instruments, tools and machines devised over the centuries.

Electricity and Magnetism - Molecular Expressions
Faraday's Magnetic Field Induction Experiment

In 1831, Michael Faraday made his discovery of electromagnetic induction with an experiment using two coils of wire wound around opposite sides of a ring of soft iron similar to the experiment setup below.

TechLib - Electronic Experimenter Records

TechLib - Electronic Experimenter Records

A technical library for the hobbyist and experimenter. - Charles Wenzel

  • World's Smallest Geiger Counter
  • Karen's Mic. Input Telemetry Device
  • Temperature Controlled Ovens
  • Two-Transistor Atomic Frequency Standard
  • Super-Sensitive Ionization Chamber
  • Cockcroft-Walton Diode Voltage Multipliers

Science Fair Ideas from TechLib

Science Fair Ideas

This will be a collection of unusual ideas for somewhat difficult science fair projects - hopefully not a repeat of other sources.

delabs Schematics