AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
Software programs matrix led signs4/5/2024 ![]() After you have all the columns sorted out, it is time to solder the rows. Sorry about the lack of photos but I will be updating this very soon with a lot more photos and info. Doing this formed one column of the matrix (you need 24). I then stripped a 12" piece of wire and soldered each LEDs anode (positive) lead to it. To do this, I placed 8 leds in an extra piece of board I cut out, with the same spacing as the backboard. This is the most time consuming part of the entire process, soldering the LEDs to the backboard of the grid. Great stores, and digikey usually gets to me in 2 days. If you want to get it quick, I recommend Digikey or Mouser electronics. Electrical tape (optional, but really useful) Shameless plug- I get most of my parts from - great store (especially for students on a budget :D), but shipping takes a while (~10 days).Alternatively, you can use cardboard, or a similar type of board. They had it in single-piece packages and were in the school supplies. I used this board from walmart, its just the right size. I just used white Elmers glue and it worked great You can also use wax paper or parchment paper if you cannot find tracing paper If you can find some uncoated wire, that will help for most of the building process, and save you lots of time stripping wire) (A side note on the wire, solid core wire in a thin gauge (22-26ish), is very helpful when building this, because we will strip most of the coating of to solder it. I went through probably 50ft of wire making this. Make sure you have the tools to program it if you just have the chip 24 resistors (Use this to get the values you need ( ), you will have to know your LEDs forward voltage and current, as well as what you are supplying it with (in the case of arduino it is usually 5v sourced)).192 LEDs (LEDs can fail or be fried easily, so I recommend getting 200 even).This project uses a lot of materials, so its best to have them all in one list. Time: 2 weekends or about 1 full season of Star Trek's work. Cost: The entire project can be done for less than $70, much less if you already have an arduino board. Better for those who have had some experience with soldering/building circuits. So would you consider voting for this project in the current contests? Thanks! Difficulty: This project will be pretty simple for an expert, but a beginner will struggle with it. This display is 3 feet long, and just over a foot high! Thats half the size of a large, flatscreen TV! Plus, the whole thing is arduino controlled, so you can program it to do other cool things, besides just showing text! :) I am just also a high school student, and i love to make stuff. ![]() Basically this is just a 24x8 matrix with a cool, interlocking foamboard grid that makes it possible to have a really big display. My goal was to increase the line count on that display, so I could have a few extra pixels. A 24圆 matrix was huge, but it just was too small for me, as not much can be done in only 6 lines. My inspiration for this project came from Syst3mX's 24圆 matrix. ![]() UPDATE!! Schematic is ONLINE! UPDATE 2!! Code is ONLINE! This project details my rather rapid build of a 24x8 matrix.
0 Comments
Read More
Leave a Reply. |