The future for J5t
A complete re-design to make J5t look more like Johnny Five.
Find an ultrasonic range sensor, similar to the one that HiTechnic previously made (see http://www.hitechnicstuff.com/products.htm.) , an infrared range sensor would also suffice... Or if you know of one that works... let me know... email paul @ stop4stuff.com (remove the spaces).
Learn how to program in Forth using the pbForth compiler.
pbForth is a Forth compiler that is uploaded to the RCX and has its own commands to allow control over the RCX functions. pbForth can run scripts or allow control of the RCX from your computer keyboard. Visit www.hempeldesigngroup.com for more info and downloads.
Use a range sensor (see above) for object detection and avoidance.