Manual
Table Of Contents
- Product Features
- Installing the hardware
- Downloading and Installing the software
- Programming a Phidget
- Technical Section
- The PhidgetAdvancedServo software component uses degrees to specify position, velocity, and acceleration. The degree unit is translated into a pulse sent to the servo, but it’s up to the servo to translate this signal into a particular position. This translation varies between servo models and manufacturers so our degree abstraction will not be exactly the same as the servo you are using. Our degree abstraction is based on the HS322-HD servo, which is typically 10.4uS per degree.
- API Section
- We document API calls specific to the 1066. Functions common to all Phidgets are not covered here. This documentation is deliberately generic. For calling conventions in a specific language, refer to that language’s API manual.
- Device Specifications
- Mechanical Drawing
- Product History
1066_0_Product_Manual created: 07/09/09 Page 9
Using the PhidgetAdvancedServo with Electronic Speed
Controllers (ESCs)
Some DC motor controllers accept a servo motor PCM signal as valid input, and use the
signal to control the speed of a DC motor. Examples of these include Victor and Thor
series motor controllers from IFI Robotics. Operation of these are similar to the way the
PhidgetAdvancedServo is used to control continuous rotation servos. Note: a buffer on the
control line is sometimes required when interfacing to these types of motor controllers, and
can typically be purchased from the motor controller manufacturer.
RC Servo Motors
The PhidgetAdvancedServo will work with the majority of 3-wire servo motors. A few motors
are listed below.
Manufacturer Part Number Description
Hitec HS-55 Feather Series RC Servo Motor
Hitec HS-322HD Deluxe Series RC Servo Motor (shown)
Hitec HS-805BB Mega Quarter Scale RC Servo Motor
The Hitec HS-322HD is available for purchase at www.phidgets.com. Many RC servo motors
are available directly from manufacturers like Hitec or at local distributors.
Consumer Quality - not for industrial use
Most RC Servo Motors are designed for use in toys. Even expensive RC Servo motors with
metal gearing will have a very short lifetime compared to industrial quality motors.