Robobuilder wCK 1111 Servo, Black

The servo line-up from Robobuilder offers PID motion control, Serial Communication, 1 Analogue and 2 DIO ports and an Extended Protocol for complete control and configuration.
The servo is controlled over a UART TTL serial line, meaning it can be controlled from a wide variety of devices, including the PC (using the appropriate RS232 or USB to TTL converter) and uses standard 2 byte instruction packets for control and feedback.


Servo Features:

  • Holding torque: at 8.4V
  • No-Load Speed: 0,25 sec/60 deg at 8.4V
  • Operating Angle: 0~269º (Standard Resolution); 0~333º (High Resolution);
    Additionally the servo can perform full rotation (360º) acting like a DC motor (with adjustable speed)
  • Resolution: 8 bit/1.055º (Standard Resolution); 10 bit/0.325º (High Resolution)
  • Position error: less than 1 degree; Average error 0.33 degree
  • Recommended Operating Voltage ~8.4V
  • 3 power states: Holding Torque; Free Motion (no torque) and Dynamic Brake where the servo offers some torque but uses no power at all.
Servo Protocol Features:

  • Daisy Chain Serial control: Each servo is assigned its own ID and is addressed through 2 byte instruction packets
  • 8bit and 10 bit Position Read (feedback) and Position Set commands
  • Instructions for Reading the Analogue Port (8 bit resolution) and read/write to the DIO ports.
  • Instructions to adjust / tweak PID configuration
  • Multiple configuration options for speed, acceleration, etc. (refer to the manual for a full list)
  • 360 deg mode: the servo can perform full rotations behaving like an intelligent DC motor with adjustable speed
  • Additional instructions are available to program the servo for stand alone operation (self running motions). In this operation mode the servo can be programmed to perform simple actions and react to external events (such as the DIO and Analogue ports).
  • PID motion control
  • TTL UART Serial Interface (4 800bps~921 600 bps)
  • Self running motion (stand alone operation)
  • Colour: Black
  • Gear Type: Gear 1 in Plastic;
    Gear 2, 3 & 4 in Metal
    (The meaning of Gear Numbers can be consulted here)
I/O ports and Assembly System:

  • 1 Analog Input Port (servo exposes solder pads to connect any 0~5V analogue sensor)
  • 2 DIO ports (servo exposes solder pads to connect DIO)
  • Joint-insert assembly for quick and easy assembly and prototyping
    (you can purchase optional joint sets for fast creation of prototypes and robots)
The complete Users Manual with a full description of the Joint Insert Assembly system as well as servo specifications, features and communication protocol is available here: wCK User’s Manual