LMAO!!!! So day number one and you are going to go all digital and techno on me?
Beyond the scope of my knowledge at this time. In racing, it doesn't matter if you have a speedo or not. Don't have time to look at it anyway!
I know that some of the newer bike engines support aftermarket speedo, tach, gear indicators, etc... that are electronically controlled.
Don't think I would want to look at anything that requires USB cables or recharging to function. This is not going to be a daily driver. This is going to be something to have fun with and perhaps take to car shows. Something to have fun with!
"So, how do I lower the 12 volts to 5 ??" Resistors. Same stuff you do to run 12 volts to a 6 volt system on an old hotrod.
Steve :p