

This ESC can control upto 8 RC servos.
NXTServo-v3 is a 8 channel ESC Servo controller module.
NXTServo-v3 allows you to control speed and position of upto 8 RC servo motors (or mini/micro RC servos) using commands sent from NXT or EV3.
A manipulator arm with 4 Degrees of Freedom using NXTServo - created by Danny.
Vex robot using NXT and NXTServo
Collection of Users' Contraptions using NXTServo
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=332585
http://www.juanantonio.info/jab_cms.php?id=250