The main idea of this project is quite simple. It is to modify a Guitar Hero controller so that it can not only play on its own, but also play perfectly.
Here is the First Song I did: "When You were Young" by The Killers
I am also working on Through The Fire and The Flames by Dragonforce and will upload it when finished.
UPDATE: I was unable (really just unwilling to put in the amount of time needed) to make it play perfectly. I was able to get it up to 98.549% a mere 1.451% away from perfection.
I may eventually fix it to be made perfect but for now only missing 54 of the 3722 notes is good enough for me.
So with out further ado here is the video of it getting 98%
Throughout this instructable you will see numbers written in each step. These numbers correspond to the pictures above the step(1 being the first etc.).
I got my first Arduino (Mega-2560) a few months ago. I love it. I've done a few really small projects with it, mainly with LEDs, but I have not done a big project yet. So I started thinking. My first idea was to create a system that would sync our Christmas lights to music like so many people have done. So I started doing research. I found out that this would be fairly easy to, all I would need to do is get some Relays and wire them up to the lights and use a serial connection from my computer to my Arduino to tell it when to turn on and off the lights. This was exactly what I was looking to do, except we don't really have a lot of outside Christmas lights nor do we have very many people in our neighborhood that would even see them. Also, being new to electric circuits, I didn't want to deal with AC as it can be very dangerous if you don't know what you are doing. So I decided against doing Christmas lights synced to music.
Throughout all the research I did on lights synced to music, I found out about a program called Vixen. Vixen is a program that many DIYers use to control their lights. It's got a really simple interface, it can output in serial commands, and it is really easy to get the timing on things really precise, even down to a couple of milliseconds. Since I had just ruled out doing Christmas Lights, I started to think about some way I could incorporate this awesome program into another project. I tried to think of something that I use a lot that I could automate with this. The first thing that came to mind was Guitar Hero. Ever since guitar hero came out I have been a huge fan. I have most of the games and 4 or 5 of the guitars. I love playing the game and have gotten really good, but there are still a few songs, like Through The Fire and The Flames by Dragonforce, that I cannot beat. So my goal was to build something that could beat that song on expert, but not only beat it buy play it perfectly. No, I didn't create this project to get the highest score on the leader boards, because that would be cheating and I could care less about a high score.