![]() ![]() Try doing som eBay searches and buy some components for future projects!Īnother one of our favorite stores is Futurlec ( ). ![]() If you buy these types of assortments, you will almost always have the parts you need in your part collection.įor 17 USD you can get 2000 resistors of 50 different values. You can get assortments of resistor, capacitors, transistors and everything in between. We are big fans of buying really cheap component lots on eBay. Most of the time, it is more important to actually have the component value at hand when you need it. When you're working with hobby electronics, you don't necessarily need the most expensive components with the best quality. We see a lot of people asking for part numbers for DigiKey, Mouser or other big electronics stores. You choose color and size.ĥv power supply (see separate step for power supply) The type with copper "eyes", see image.ġx ATmega32 microcontroller (you can also use the pin-compatible ATmega16)ģx status LEDs. (see separate step for ohm value)ġx or 2x large prototype PCBs. Here is what you need to make a LED cube:ĥ12x LEDs (plus some extra for making mistakes!)Ħ4x resistors. You should also have patience and a generous amount of free time. We provide a fully functional program, ready to go) (We would recommend against building this as your very first electronics project. With that said, there are still some things you should know before venturing out and building this rather large project.īasic electronics. And believe me, this makes it A LOT easier to do electronics! I went from only being able to build simple analog circuits, to being able to build almost anything!Ī digital circuit doesn't care if a resistor is 1k ohm or 2k ohm, as long as it can distinguish high from low. This completely changed my relationship with electronics. One resistor or capacitor with a slightly wrong value, and the circuit doesn't work.Ībout 4 years ago, I decided to give microcontrollers a try. The analog circuits failed over half the time even if i followed instructions. I've been doing electronics for a long time, and for years i struggled with analog circuits. However, we are dealing with digital electronics here, so everything is either on or off! Gerber files (folder: RGB LED cube gerber) were sent to a fab house for PCB fabrication.At first glance this project might seem like an overly complex and daunting task. High resolution images are available in my Flickr album. Materials and Components Main ingredients for RGB LED cubeĥmm clear acrylic top cover box for LED cubeĤmm White acrylic bottom cover box for LED cubeĦ# x 1" Screw (Nickel plating, Flat head)ĥmm clear acrylic 1200mm x 1200mm for making LED boxĤmm black acrylic 600mm x 600mm for making LED boxĤmm white acrylic 1200mm x 1200mm for making LED boxģM scotchcal marking film for marking pin header Therefore, using the MBI5026GN in this project will allow us to reduce the complexity of the circuit & hence reducing components & wiring. Negative output (All outputs connected to LED are sharing anode) Positive output (All outputs connected to LED are sharing cathode) Only need a reference resistor at its R-EXT pin Require a current limit resistor at each output pin ![]() 74HC595ġ6-Bit Serial-In, 16 channel parallel-out Table below shows the different between 74HC595 & MBI5026GN. The 74HC595 is a 8-bit shift register, whereas MBI5026GN is a 16-bit shift register, with only 3 data pins (CLK, Data and Latch), you can control an almost unlimited amount of outputs. My LED cube are using the MBI5026GN constant-current LED driver chip instead of the 74HC595 shift-register. ![]()
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