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User's guide (233k PDF)
The Pololu micro serial servo controller (SSC) is a very compact solution for controlling
up to eight
radio control
(RC) servos from a computer or microcontroller. The controller measures just
0.91" x 0.91", yet it is one of the most full-featured servo controllers available.
Each servo speed and range can be controlled independently, the baud rate is detected
automatically over a 1200-38400 bps range, and multiple units can be daisy-chained
on one serial line to control up to 128 servos. Three status LEDs and an integrated
level converter for RS-232 applications get you up and running quickly. The micro
serial servo controller is dwarfed by even a standard servo, but it can control
any standard RC servos, including giant 1/4-scale servos.
This servo controller supports two separate communication protocols. One protocol
is compatible with other Pololu servo controllers and motor controllers, and it
offers individual range and speed control for each servo. This servo controller
is also compatible with the Scott Edwards MiniSSC II servo controller and any software
written for it.
The servo controller is less than half the size and price of most 16-channel servo
controllers. This means that the micro servo controller is an ideal solution even
if you need to control more than eight servos, as in the case of a six-legged walking
robot. Having multiple smaller controllers means less of a wiring mess since servos
in one section of the robot can be connected to a more local controller.
The back side of the board has all of the ports labeled, and two mounting holes
allow you to secure the controller to your project. The logic supply and the servo
supply can be tied together for single-battery operation, or the on-board voltage
regulator allows the logic supply to be as high as 16V.
If you are interested in controlling more than 8 servos, you may want to consider
the
serial 16-servo controller. We also have a
USB 16-servo controller.
Device specifications
| PCB size: |
0.91" x 0.91" |
| Servo ports: |
8 |
| Resolution: |
0.5 µs (about 0.05°) |
| Range: |
250-2750 µs |
| Logic supply voltage: |
5-16 V |
| Data voltage: |
0 and 5 V |
| Pulse rate: |
50 Hz |
| Serial baud rate: |
1200-34800 (automatically detected) |
| Current consumption: |
5 mA (average) |
Downloads:
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