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I need around 120 digital outputs for a project, how would you suggest I do this?

12buckleo

Hi there!

I am planning a project using a bunch of LEDs that I want to be able to control separately and I need to be able to control around 120 digital things. I would like to use an arduino to do this but I am open to suggestions on other platforms. I want any system that will let me control around 120 digital LEDs and maybe a few buttons all independently. I am looking for something relatively inexpensive and not too complicated (although I can handle some difficulty, that's why I want to do the project).

I was thinking I could use an I/O expansion board on an arduino or something similar to the gertboard for raspberry pi.

I would really appreciate any help people could give me, I would love some links to things so I can compare them too!

 

Thanks in advance,

-Leon

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  • in reply to jkutzsch

    @John_kutzschebauch :   Thank you for that great vid, I had seen some RGB cubes before and always wondered what method they used and if they had some complicated system with LEDs in series but that video was really helpful. I don't think I will use the same way as he used though as it seems very complex, I had seen something using the same chip beforehand. Thanks a lot for the suggestions, I will keep them in mind possibly for a later project to learn about that chip.