Servo - July 2010

NEW PRODUCTS SERVOS/CONTROLLERS

Monster Torque Servos

Hitec now offers two of their most technologically advanced "Monster Torque" servos.

Both of these powerhouse servos have premium performance and durability. Each features a 7.4V optimized coreless motor, integrated heatsink case, and a top case with two hardened steel gear pins supported by brass axial bushings. These servos are designed with Hitec’s newest high resolution "G2.5" 12-bit programmable digital circuit and indestructible titanium gears. The HS- M7990TH utilizes a high resolution magnetic encoder while the HS-7980TH employs a conventional potentiometer.

The HS-7980TH and HS-M7990TH are ideal for high performance giant scale aircraft, truggies and buggies, monster trucks, and high performance boats.

Common Features: • G2.5 12-bit Digital Programmable Circuit • Titanium Gear Train (MK first gear)

For further information, please contact:

Hitec

Website: www.hitecrcd.com

Mini Maestro USB Servo Controllers

Pololu has released the Mini Maestro 12-, 18-, and 24- channel USB servo controllers. In addition to a TTL serial interface, these small boards incorporate native USB control for easy connection to a PC and programmability via a simple scripting language for self-contained, host controller-free applications. The Maestros’ extremely precise, 0.25 us resolution servo pulses have a jitter of less than 200 ns, making these servo controllers well suited for high-performance applications, and individual speed and acceleration control for each channel allow for smooth, seamless movements. The Mini Maestros feature configurable pulse rates up to 333 Hz and can generate a wide range of pulse widths to allow maximum responsiveness and range from modern servos. Units can be daisy-chained with additional Pololu servo and motor controllers on a single serial line.

A free configuration and control program is available for Windows and Linux, making it simple to configure and test the board over USB, create sequences of servo movements for animatronics or walking robots, and write, step through, and run scripts stored in the servo controller. The 8 KB of internal script memory allows storage of up to approximately 3,000 servo positions that can be automatically played back without any computer or external microcontroller connected.