This is an awesome start.
Mirith
Thank you for the warning on safety. Too many people tinker in EV without respect for the power and get hurt. I've already built an EV so the actual functioning of the vehicle isn't a big problem. I just wanted a slick interactive display to have access to information. I'll look into the rotary sensor since GPS is seemingly not accurate enough for a proper speedometer. Having a display warning is a good idea as that will give me a clue of what the problem is before shutdown.
DVDdoug
I like the idea of a big warning light, allowing me to shutdown at my safety. combined with Miriths warning display suggestion I think this is my best option. I figured the keycode would be just software, glad to hear I was right.
With everything going into this build I think it's more prudent to just have a bluetooth headset in my helmet that can use my phone. Seems simpler and I don't need to be looking down at my display hunting for a song anyway. I was contemplating trying to replace the expensive motor controller entirely but that may be out of my skill range at the moment.
I've attached my wiring diagram for fun. It's old and the Arduino controls would replace the key switch but it's a start. If you see anything wrong or have any ideas I would welcome them.
Questions:
- Would you guys suggest any likely sensors, shields, controllers, or loggers you think I may need or get use out of?
- I would like to hard wire the build into the electrical series so it's always on but I'm not sure if it would eat up power even in sleep mode. Should I have a separate DC battery for it or just a DC step down with a dedicated fuse for protection?
