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Originally Posted by Rickertsen2
If i understand you correctly, you are trying to build a variable reluctance brake... There is a way to LEGALLY do this. The speed controllers have a jumper which when enabled, causes them to act as a short circuit and effectively a brake, whenever they are sent a signal inside of their deadband. Well anyway all you have to do, if you want variable braking is to send them a duty cycle modulated signal, that switched from being inside the deadband, to just barely ourside it, but not enough so to make the motors even move.
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Rick,
There is no way to legally accomplish this since the braking jumper on a speed controller cannot be controlled by the custom circuit board. It can only be controlled by a switch used as a sensor.
<R52> Custom Circuits may not:
• Directly affect any output devices on the robot, such as by providing power directly to a motor, supplying a PWM signal to a speed controller or supplying a control signal to a relay module.