Quote:
Originally Posted by techhelpbb
With minimal hardware the feature could exist but I doubt it would be legal under the FRC rules as it would require measuring the voltage drop over a specific length of wire using the analog bumper or some other analog accessory. It can be done with a series resistor like in the Jaguar but in doing so you'd be in the path of the current with more than wire. I doubt it would be legal on the output side of an electronic motor control as it would make a connection between the bridge in the electronic motor control and the motor back to the control system. It might not be legal on the power input side of an FRC electronic motor control either. Course on the power input is both the current to the motor and the electronics in the motor control (which are small in comparison to the motor). There's also the issue that the current at the power input point will have aspects not conforming to the current at the output to the motor (the bypass diodes, various features, the resistance of the MOSFETS).
Don't think of trying this trick unless you understand the difference between a single ended and differential A/D input.
|
That wasn't actually a serious question, but thanks for the answer! For the Talons we used on our drive train, we experimented with using a wire coiled around one of the wire leads and got some values in a custom circuit. I'm not sure of all the details, our electrical mentors worked on it.