Brushless Nerf Regulator

This isn't so much a remix as I've made no changes to the original design. I have however integrated this brushless upgrade with an Arduino Nano to provide the control with the three firing modes.
This is a reasonably complicated build but was a great learning curve for me, I would suggest that before you start the build, read up on all the components and how they operate if you're unsure.
Just excuse the 9V battery and Arduino Uno in the schematic, TinkerCAD doesn't have the Lipo or Nano symbols.

There are some build notes in the Arduino code so have a read there first and if there are any questions don't hesitate to ask.