26-04-2012, 03:55 PM
Parallax Continuous Rotation Servo
[attachment=20899]
Features
Bidirectional continuous rotation
0 to 50 RPM, with a linear response to PWM for easy
ramping
Accepts four mounting screws
Easy to interface with any Parallax microcontroller or
PWM-capable device
Very easy to control with PBASIC's or SX/B's PULSOUT
commands
Manufactured for Parallax exclusively by Futaba
Device Information
The Parallax continuous rotation servo relies on pulse width modulation to control the speed and direction
of the servo shaft. Before utilizing the servo in a project, it is important to calibrate the center position of
the servo in order to define the point where the servo is at rest (see Calibration – “Center” the Servo
below).
Power Precautions
Do not use this servo with an unregulated wall-mount supply. Such power supplies may deliver
variable voltage far above the stated voltage.
Do not power this servo through the BASIC Stamp Module's Vin pin, this can deliver voltages
above the stated voltage. See the Board of Education Connection Diagram below for jumper
settings.
Servo current draw can spike while under peak load; be sure your application's regulator is
prepared to supply adequate current for all servos used in combination.
BASIC Stamp Programming Examples
PBASIC has a PULSOUT command that sets the I/O Pin to an output and sends a pulse of the specified
Duration. Since the servo needs this pulse refreshed every 20 ms for continuous operation, the PULSOUT
command is put in a counted FOR…NEXT loop to sustain continuous operation for the specified number
of cycles.
[attachment=20899]
Features
Bidirectional continuous rotation
0 to 50 RPM, with a linear response to PWM for easy
ramping
Accepts four mounting screws
Easy to interface with any Parallax microcontroller or
PWM-capable device
Very easy to control with PBASIC's or SX/B's PULSOUT
commands
Manufactured for Parallax exclusively by Futaba
Device Information
The Parallax continuous rotation servo relies on pulse width modulation to control the speed and direction
of the servo shaft. Before utilizing the servo in a project, it is important to calibrate the center position of
the servo in order to define the point where the servo is at rest (see Calibration – “Center” the Servo
below).
Power Precautions
Do not use this servo with an unregulated wall-mount supply. Such power supplies may deliver
variable voltage far above the stated voltage.
Do not power this servo through the BASIC Stamp Module's Vin pin, this can deliver voltages
above the stated voltage. See the Board of Education Connection Diagram below for jumper
settings.
Servo current draw can spike while under peak load; be sure your application's regulator is
prepared to supply adequate current for all servos used in combination.
BASIC Stamp Programming Examples
PBASIC has a PULSOUT command that sets the I/O Pin to an output and sends a pulse of the specified
Duration. Since the servo needs this pulse refreshed every 20 ms for continuous operation, the PULSOUT
command is put in a counted FOR…NEXT loop to sustain continuous operation for the specified number
of cycles.