datasheets.com EBN.com EDN.com EETimes.com Embedded.com PlanetAnalog.com TechOnline.com
Events
UBM Tech
UBM Tech

Max's Cool Beans

Comment

Max the Magnificent

8/31/2011 9:59 AM EDT

I guess the main reason is I don't have an Android tablet -- but for those that ...

More...

raraujo

8/31/2011 5:30 AM EDT

Why not Droid Tesla, an interactive application to Android with SPICE engine.

More...

Hot iPad app: iCircuit (electronic circuit editor and simulator)

8/19/2011 12:03 PM EDT

My old chum Alvin (who co-authored Bebop BYTES Back and How Computers Do Math with me) just emailed me to say that he is really impressed with an iPad app called iCircuit. In his own words:

iCircuit is an easy-to-use electronic circuit editor and simulator – the perfect tool for students, hobbyists, and engineers.

First of all you to capture a circuit using predefined devices including signal generators, voltage sources, and current sources; resistors, capacitors, and inductors;  diodes and transistors (bipolar and field-effect); logic gates (AND, OR, NAND, NOR, XOR) and registers (JK and D-type flip-flops); digital-to-analog and analog-to-digital converters; manual SPST/SPDT switches and SPST/SPDT relays switches; and speakers, buzzers, and LEDs.

Using your finger you can place devices on the screen and wire up your circuit. You can also modify the values and semiconductor parameters associated with the components. The simulator is always running in the background, so as you add components you start seeing results, which is very cool.

You can excite the circuit by using the various signal sources that include DC, AC, sine wave, square wave, saw tooth, and pulse; also you can control each waveform’s amplitude, shape, voltage offset, and so forth.

Similarly, you can use a virtual multimeter to measure the voltage or current at any point in the circuit. If you want to see how the values on signals change over time, you can display those signals using the built-in oscilloscope.

Overall this is a very nice tool that allows you to experiment and discover how circuits act. I only wish I had had this when my interest in electronics first surfaced. It would have saved a considerable amount of smoke :-)

At \$9.99 this is great fun and tremendous value.

Cheers, Alvin

If you found this article to be of interest, visit Programmable Logic Designline where – in addition to my blogs on all sorts of "stuff" – you will find the latest and greatest design, technology, product, and news articles with regard to programmable logic devices of every flavor and size (FPGAs, CPLDs, CSSPs, PSoCs...).

Also, you can obtain a highlights update delivered directly to your inbox by signing up for my weekly newsletter – just Click Here to request this newsletter using the Manage Newsletters tab (if you aren't already a member you'll be asked to register, but it's free and painless so don't let that stop you [grin]).

Max the Magnificent

8/19/2011 12:20 PM EDT

kendallcp

8/19/2011 3:17 PM EDT

Hmm, that looks interesting, though the devil will be in the detailed usability, of course. If you really want to run a simulator on a 10" tablet, though, why not get a Fujitsu Q550 and run the excellent (and free!) LTspice simulator on it? Plus all the other PC stuff you (or at least I) can't do without.

Max the Magnificent

8/22/2011 1:15 PM EDT

I guess the thing about this one is that it mixes analog and digital -- plus the usage mode is such that even absolute beginners can make it work.

Also you can turn on a display of the current flowing through the wires, also color to indicate voltage -- all of which is great for beginners understanding what's going on...

green_is_now

8/24/2011 4:23 PM EDT

wow I might have to buy a smartphone now!
:)

Frank Wiedmann

8/25/2011 4:15 AM EDT

The website for iCircuit is http://icircuitapp.com/ . There the author gives credits to a similar circuit applet written in Java by Paul Falstad that is available for free at http://www.falstad.com/circuit/ . Try it out! More educational math and physics applets by the same author are available at http://www.falstad.com/mathphysics.html .

ReneCardenas

8/25/2011 9:45 AM EDT

Frank, thanks for the pointers, great stuff.
Another reason to buy and make converts of people like me that sit on the fence and wait for lower price on iPads.

Max the Magnificent

8/25/2011 10:38 AM EDT

I waited for ages -- I found it hard to justify buying the iPad -- now I wish I had got it sooner (although I am glad I got the iPad 2 rather than the iPad 1). I really do totally recommend this for business and pleasure...

raraujo

8/31/2011 5:30 AM EDT

Why not Droid Tesla, an interactive application to Android with SPICE engine.

Max the Magnificent

8/31/2011 9:59 AM EDT

I guess the main reason is I don't have an Android tablet -- but for those that do this sounds very interesting -- have you used it yourself?