I'm a Physics teacher and just received a grant to buy an Electric Go-Cart. I've assembled it and it's ready to go but now I want to make some modifications and need help.
1. I want something that acts like a governor to control the speed when younger kids are driving. I want something simple to install (no building complicated circuits - but would rather just pay extra and have it shipped to me built). I've been looking at DC motor speed controllers but not sure what I need. The go cart runs on 4, 12 volt batteries (look like they came off a golf cart but maybe smaller). Also, I want to be able to adjust the controller while presenting a lesson on resistors so I don't want to have to remove anything but just turn a knob.
2. I want to be able to kill the go-cart from a slight distance. I want a remote kill switch in case a student gets in trouble or is breaking the rules. Any ideas on this would be great!
Thanks,
Deborah Carder
Lakeside Physics