Electronic Drums! (Custom Modded Guitar Hero Kit)

I modified this guitar hero drum kit so that it would play like a real drum set for my little guy. He has a real electronic drum kit now so I am ready to pass this on.

All you need to do is plug it into an iPad and open up the GarageBand app!

It has:

• an Arduino Uno
• a genuine apple lightning to USB adapter
• a Roland USB midi interface (UM-ONE)

All of which I ended up spending ~$150 on new. So I am looking for ~$50 value but feel free to try me.