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Wednesday, 8 October 2014

Simple Circuit of a 3*3*3 LED Cube using Arduino Mega (Part 1 of 10)

by realfinetime electronics  |  in LED Cube at  23:57

<<<<  Previous : 2*2*2 LED Cube Guide for Beginners, using Arduino

          We had already seen 2*2*2 LED cube using arduino mega in previous blogs. Here we will see the circuit to control 3*3*3 LED cube using arduino mega. Circuit is done as shown in the following diagram.


          3*3*3 LED cube has 27 LEDs in 3 layers. Each LEDs can be addressed in terms of negative and positive terminals of LED cube. neg1, neg2, neg3, neg4, neg5, neg6, neg7, neg8, neg9 are the negative terminals and pos1, pos2, pos3 are the positive terminals.

          LEDs at the bottom layer can be addressed as (neg1, pos1), (neg2, pos1), (neg3, pos1), (neg4, pos1), (neg5, pos1), (neg6, pos1), (neg7, pos1), (neg8, pos1) and (neg9, pos1).

          LEDs at the middle layer can be addressed as (neg1, pos2), (neg2, pos2), (neg3, pos2), (neg4, pos2), (neg5, pos2), (neg6, pos2), (neg7, pos2), (neg8, pos2) and (neg9, pos2).

          Similarly, LEDs at the top layer can be addressed as (neg1, pos3), (neg2, pos3), (neg3, pos3), (neg4, pos3), (neg5, pos3), (neg6, pos3), (neg7, pos3), (neg8, pos3) and (neg9, pos3).

          Resistors of 1K should be connected to the positive terminals of LED cube. Connections between LED cube and arduino mega can be summarized as:

"neg1" of 3*3*3 LED cube is connected to the digital pin 13 of arduino mega.
"neg2" of 3*3*3 LED cube is connected to the digital pin 12 of arduino mega.
"neg3" of 3*3*3 LED cube is connected to the digital pin 11 of arduino mega.
"neg4" of 3*3*3 LED cube is connected to the digital pin 10 of arduino mega.
"neg5" of 3*3*3 LED cube is connected to the digital pin 9 of arduino mega.
"neg6" of 3*3*3 LED cube is connected to the digital pin 8 of arduino mega.
"neg7" of 3*3*3 LED cube is connected to the digital pin 7 of arduino mega.
"neg8" of 3*3*3 LED cube is connected to the digital pin 6 of arduino mega.
"neg9" of 3*3*3 LED cube is connected to the digital pin 5 of arduino mega.
"pos1" of 3*3*3 LED cube is connected to the digital pin 4 of arduino mega.
"pos2" of 3*3*3 LED cube is connected to the digital pin 3 of arduino mega.
"pos3" of 3*3*3 LED cube is connected to the digital pin 2 of arduino mega.

2 comments:

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  2. I have made this cube by following ur instructions. All codes nd connection work perfectly for 1st nd 3rd layer.. bt second layer is not working in any coding. No led of second layer is working.checked connection nd all dr is no such prblm. Wht cn be d solution? (I have used arduino uno board ) reply asap. Thank you

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IMPORTANT NOTICE

All the circuits, published in this blog is only after testing and getting proper results in my private lab. When you try these circuits, you should check the supply voltage, polarity of components, presence of childrens nearby and shorts in the circuits. This website will not be responsible for any harm happened to you or your components caused by your carelessness.

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