I've decided of building an LED matrix(10x10) to plot mathematical curves such as line, parabola, etc. I'm a total beginner so I just wanted to ask how to proceed about this.

At first, I thought of just joining the specific LED's to give the desired curve. But that would have been too naive , wouldn't it ?

So please help.

  • \$\begingroup\$ What is your thought about controlling the leds? Will it be manually by switches, will it be with digital gates, will it be with a microcontroller? \$\endgroup\$ – alexan_e Dec 22 '13 at 17:34
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    \$\begingroup\$ @alexan_e I have thought of controlling the LED's manually by switches \$\endgroup\$ – user2369284 Dec 22 '13 at 17:45
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    \$\begingroup\$ Then you will need 100 switches, one to control each LED individually plus 100 resistors, one for each led. Doesn't seem like a very efficient way to do it but it should be simple enough. In which particular part you need help? \$\endgroup\$ – alexan_e Dec 22 '13 at 18:01
  • \$\begingroup\$ I think you need to explain a bit more how you expect it to work with just LEDs and switches. I'd have thought it impractical because you'd need a switch for each LED unless you were producing hardware that produced a row or column scan-output to give you a visual that looked "complete" rather than set-up a hundred switches to do what you want. Explain the user interface more. \$\endgroup\$ – Andy aka Dec 22 '13 at 18:03
  • \$\begingroup\$ @alexan_e I want to plot a curve(say equation of parabola y^2 = 4ax) ,in this I want to control the value of 'a' manually. \$\endgroup\$ – user2369284 Dec 22 '13 at 18:05

You can refer the open source hardware project Facecandy. Try modifying for your needs.Visit this link https://github.com/scanlime/fadecandy

enter image description here

edit: the picture makes this answer less link-only

  • \$\begingroup\$ I want to make it from scratch \$\endgroup\$ – user2369284 Dec 22 '13 at 17:48

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