Pots give an absolute position information back. If the power is removed, pots will give you the same info when the power is restored. Encoders and rate sensors (gyros) are relative devices. Once power is turned on, these devices re-initialized.
Each type have their advantage and disadvantage, Pots (once set) are very easy to read but are not accurate. Encoders and rate sensors are very accurate but more difficult to program. Also, the robot must start in the exact same position.
A lot of factors become involved in selecting the right type of sensor. Example, adding an encoder on a canon that has a lot of mechanical backlash is a lot of work. A pot would be a better selection.
Unfortunately, there is no easy answer. Too many variables.
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Originally Posted by Smithvillefirst
Our robot canon is amazing but we are having difficulty finding a suitable device to send the coordinates back to the frc controller to tell what the canon is pointed at, any solutions?
Anthony Peck,
Integration Manager
Team 1806
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