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Servo Center™ 

Embedded Servo Controllers for Independent and Coordinated Fluid Servo Motion

The Yost Labs’ Servo Center™ product line is a family of embedded servo controllers that allow RC servo motor control from any USB, serial RS-232, MIDI-capable device. ServoCenter™ is also available in DIP and TQFP chip packages. The ServoCenter™ 4.1 Sequencer allows complex tasks to be programmed via a script sequencer in addition to other programming options that are standard in the ServoCenter products.

  • Amazing and unsurpassed control of the seek position and seek speed of up to sixteen connected servos — independently and simultaneously, with simple, logical commands
  • Ability to chain up to 16 (32 for MIDI version) ServoCenters™ to control up to 256 RC servos (512 for MIDI version), with completely independent movement, from only one serial, USB, or MIDI port
  • Independent control allows multiple servos to simultaneously move a different speeds to different positions, while group moves allows multiple servos to synchronize easily
  • Programmable using a simple raw packet protocol or using the included ActiveX control or Win32 DLL
  • Code examples included for GCC/Linux, QBASIC, TurboC, Python, C#, Visual Basic.NET, Visual Basic 6.0, C#.NET, Visual C++.NET, and Visual C++ 6.0

The ServoCenter™ 4.1 controller provides a built-in Sequencer / BASIC Interpreter called SC-BASIC which allows the sequencer to run independently on the board itself. Sequencer programs are stored in non-volatile EEPROM memory that retains the program even when the unit is reset or powered off, eliminating the need for a PC or other external command device.

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  • ServoCenter™ USB

    $90.00$102.00
    Select options

ServoCenter™ USB

  • 16 servo channels per board
  • Chain up to 16 boards to control 256 servos via one USB port
  • Store up to 64 scene presets, load instantly or cross-fade for smooth transition
  • Use built-in configurable smoothing algorithm provides for more natural movement
  • 9.6cm x 9.0cm x 2.5cm
  • 2.7 oz
  • ServoCenter™ MINI

    $90.00$102.00
    Select options

ServoCenter™ MINI

  • 16 servo channels per board
  • Chain up to 16 boards to control 256 servos via one USB port
  • Store up to 64 scene presets, load instantly or cross-fade for smooth transition
  • Use built-in configurable smoothing algorithm provides for more natural movement
  • 7.48cm x 4.32cm x 2.5cm
  • .95 oz
  • ServoCenter™ MIDI

    $90.00$102.00
    Select options

ServoCenter™ MIDI

  • Easily configured by anyone familiar with MIDI (Musical Instrument Digital Interface) such as musicians or special effects / animatronics technicians.
  • Works with any device with MIDI OUT port to control standard RC servo motors with continuous controller messages
  • Use MIDI IN and MIDI THRU ports to daisy-chain multiple ServoCenter™ boards
  • Use ServoCenter™ MIDI with a MIDI sequencer for an instant motion control solution, accurate and repeatable recording and playback of servo motions.
  • 16,384 servo positions possible with full 14-bit resolution
  • Opens up many opportunities for multimedia displays, interactive performance art, kinetic sculptures, and more
  • 8.5cm x 9.2cm x 2.5cm
  • 2.8 oz
Feature Comparison USB 4.1 USB-MINI MIDI
Servo channels individually configurable as extra digital outputs YES YES
16 dedicated digital I/O channels, individually configurable YES YES
8 dedicated analog input channels YES YES
Preset storage capability 64 presets for servo position & digital I/O 64 presets for servo position & digital I/O
Configuration information saved even when powered off YES YES
Watchdog timer for failsafe operation YES YES
Max servo pulse resolution 0.05425 uS 0.05425 uS
Pulse output rate 20 ms 20 ms
Pulse width range 10-2390 uS 10-2390 uS
User upgradeable firmware; download new features YES YES
Bootloader allows users to create and upload their own firmware YES YES
Baud rates supported 9600, 38400, 57600, 115200 bps 9600, 38400, 57600, 115200 bps
Connectors USB type B, male and female DB9 serial USB 5-pin Mini type B, 3-pin serial
Communication supported USB, RS-232 serial, TTL logic-level serial USB, RS-232 serial, TTL logic-level serial MIDI
Data Format MIDI standard at 31.25 kbps
Length 3.775″ (9.6 cm) 2.945″ (7.48 cm) 3.375″ (8.5 cm)
Width 3.55″ (9.0 cm) 1.7″ (4.32 cm) 3.625″ (9.2 cm)
Height 1.0″ (2.5 cm) .56″ (1.42 cm) 1.0″ (2.5 cm)
Weight 2.7 oz 0.95 oz 2.8 oz
Primary Input USB Type B port USB 5-pin Mini Type B 5-pin DIN MIDI-IN
Secondary Input/Thru Serial DB9 female In, DB9 male Thru style RS-232 DCE 3-pin TTL serial Serial 3-pin In, 3-pin Thru
Tertiary Input/Thru TTL serial 3-pin IN, 3-pin Thru TTL serial 3-pin IN, 3-pin Thru 5-pin DIN MIDI-THRU
Servo Interface 3-pin standard universal RC servo connector 3-pin standard universal RC servo connector 3-pin standard universal RC servo connector
Digital I/O Interface 3-pin (Ground, +5v, Signal)
Analog Input Interface 3-pin (Ground, +5v, Signal)
Power Supply Minimum 1A, 7.5VDC – 15VDC Minimum 1A, 7.5VDC – 15VDC Minimum 1A, 7.5VDC – 15VDC
Power Jack Male, 2.1mm x 5.5mm, center positive Male, 2.1mm x 5.5mm, center positive Male, 2.1mm x 5.5mm, center positive
Servo Power Output Regulated 4.8VDC or 6.0VDC (selectable), up to 5A Regulated 4.8VDC or 6.0VDC (selectable), up to 5A Regulated 4.8VDC or 6.0VDC (selectable), up to 5A
Cable Type USB device cable USB MINI device cable 5-pin DIN MIDI