Quote:
Originally Posted by sand500
Can the Arduino support reverse PWM or can it only output values from 0-255 so only one direction?
|
Although this has been implied, there is no such thing as reverse PWM. Duty cycles can be anywhere between 0 and 255, with 0 being full reverse, 255 being forward, and a deadband in the middle for neutral.
Quote:
Originally Posted by sand500
Would the PWM output be compatible with Jaguars, Victors and the VEX motor controllers?
|
The Arduino PWM library will not. The Servo library will. See above for the reasons why.
Using the Servo library will give you the full range of control over a Victor. We have developed testing platforms which feed Arduinos an analog input to drive a Victor; no recalibration was necessary, but the code had to be tweaked a little.
You will have to either recalibrate the Jaguar or adjust the methods found in the Servo library to achieve a full range of control.
Quote:
Originally Posted by sand500
I know that the RobotOpen shield gives ability to use the digital side car but is it worth the price?
|
You don't need RobotOpen for a task like this. RobotOpen is designed to replace a cRIO, allowing teams to work with a larger budget and replace the core of their control systems with little hassle.