Let's Make Robots!

Request for electronic 101

Is it possible the more advanced people in lmr to make an electronic 101 tutorial or a series of tutorials

in order to make new members more familiar with electronics?

I mean for example ,what is a resistor what a capacitor why they are being used,then make some small projects

like a voltage regulator or a battery charger  and give examples of other simmilar circuits and have new members to make

their own pcbs  and know why they use each component ,like Chris(CtC) did with his son?

Because I thing there are members that they want to go to more advanced projects and they don't have the proper knowledge on

electronics field including me .

Is that possible?

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The Robotics Club of Yahoo, (TRCY), also has a basic electronics tutorial, which I helped write:


Thank you everybody ,about your suggestions.

@merser : In fact I like reading a lot ,but I thought for example ,to understand how a shift register works or i2c communication

you have to have some knowledge on basic electronics this is what I am searching for .

Well I know most of the basic but Im not sure that I know them well enough to start a serious project ,I mean I have to

read more specifically .

@Gareth : I will have a look on this one ,thanks by the way.

@οddbot:using encoders sounds like chinese to me so such a topic will be helpfull,thanks too.

Man I must have forgotten to take my pill that day Flokos. I am sorry. I hope you have found what you were looking for.

There are already several tips / walkthroughs on basic electronics on this site. Here are some of the ones I wrote:

Basic robot power supplies: http://letsmakerobots.com/node/3880
Simple DC-DC converter: http://letsmakerobots.com/node/3906
Measuring current draw: http://letsmakerobots.com/node/18517
How to use LED's: http://letsmakerobots.com/node/4948
How to make antenna that light up when touched: http://letsmakerobots.com/node/7298
Simple pressure / touch sensors: http://letsmakerobots.com/node/2847
Using a hall effect sensor: http://letsmakerobots.com/node/2759
How to use a Quadrature encoder: http://letsmakerobots.com/node/24031

of websites and books on this subject. While electronics are a big part of robot building it would be a waste of space to have basic tutorials on the subject here. I did a search of this site for a resistor and transistor and there are enough nodes that already talk about the design and use of such components.

When I did my trade apprenticeship 28 years ago we got 1 week of 1 hour a day on electronics theory in the final block. This of course was no where near enough to bring you up to speed and that was 28 years ago when things were simpler. I took post trade courses after that and thanks to the web learnt heaps more on top of that.

It really comes down to how bad do you want to learn it. Because you can never know enough to do anything you want to with electronics. You are always going to need to learn something new. The real skill needed here is how to go about finding the knowledge that you need to complete your project. One of the best ways I have learnt is never rely on one explanation of anything. Sometimes you are not on the same wavelength or thinking the same way as the author so if you read 3 different explanations by 3 different people you get a better idea as well as broader coverage of the topic.

So do a search here if you want an explanation about how resistors work or a transistor. Then go and buy a good book.  I could recommend my old college textbook "electronic devices" by Floyd published by Merrill but there are stacks of others. A lot of people rave about a book called "The art of electronics."

And then google. That is the cheapest and most powerful tool for gaining knowledge man has ever created.

If you don't like reading then you are in trouble. No one can plant the knowledge in your brain any other way. Oh and of course experiment and be prepared for mistakes. You learn faster by mistakes than any other way. If you are low on resources then make mistakes with scavenged parts rather than bought. And finally... Good Luck!

This Makezine series is a good starting point Electronics Explained in easy way