Instructables

computer controlled rc car roller coaster

a new idea i recently came up with was to use the ir feature in the wiimote as a gps tracker for line of sight communication... basically, the idea is to build a framework (knex pieces maybe) and then make a track out of something else with lots of turns, ups/downs, a jump or 2, and a stunt track (kind of like a skiing terrain park) on the roof... also an elevator in a corner to take the car up, and finally 2 spiral tracks to also help the car get up easier. i will eventually make a sketchup version of this track and post it, right now its just on paper but still, the layout idea is almost done.

the idea is to mount an led throwie thingy using an ir led an a locking push switch (push on, push off to conserve battery life) on the top of an rc car such as a mini cooper (pic 1). i will mount the wiimote at an angle on the top in a way so that the whole track is visible (or as much as possible).

heres the idea: the car remote should be hooked up to the computer, and there is a way to do that if u google it an/or look at this
the wiimote will track the car using the ir, and the computer will then steer the car accordingly. Advantages to that are : 1. the car can start anywhere on the track; 2. there is no need for borders like those "ai" cars which use ir sensors to drive their way around, which i happened to mention in another forum of mine so refer there for pics + description; and 3. it actually tracks the car's location, instead of just avoiding obstacles like those ai cars. this would allow realtime tracking, so it knows to stop the car when it eg. gets to the elevator, ect...
now - naturally, this design will have some "blind spots", so there will be laser "tripwires" in those more major areas and have those signals routed through a microcontroller, which will then send out a # respective to the tripped area then routed to the computer, just like an advanced alarm system.

for the controller (hooked up to computer), it would be nice to have the whole thing routed through and powered by a single usb port, so instead of integrating a hub, is there a microcontroller that is designed to directly interface with a computer, not just for programming, but for actual realtime commands and stuff like that..?

as far as the forum goes, this is just a huge idea now and we each have our areas of expertise... so m asking for ideas about harware, materials, coding, and especially how to directly interface the program to the wiimote...
also, comments, questions, and anything else u got is welcome and greatly appreciated.

Thanks to all,
rak

TSC4 years ago
Nice!!!
Pro

Get More Out of Instructables

Already have an Account?

close

PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.

Upgrade to Pro today!