As cool as our Lego Mindstorms IMU-driven UAV
is, it's a shame that HiTechnic hasn't yet released the commercial versions of the prototype servo MUX (RC multiplexer + servo controller) and integrating gyros that make it possible. As a result nobody else can make a similar UAV--we've got the only prototypes that HiTechnic let out. Lattebox does sell a servo controller board
(not also a MUX, sadly), but unfortunately it hasn't released drivers for that using RobotC, which is what my Mindstorms autopilot is written in. But now comes good news in the form of a new Mindstorms servo controller board that does have Robot C drivers.
Mindsensors has just released a Servo Controller board
($47.75) that can control up to 8 servos. Even better, they're working on a way to attach servos to Lego parts
, so you don't have to use superglue and rubberbands like me ;-)
(Thanks to the NXT Step blog for the tip)