Write NXTLineLeader Kd value. Write a Kd value to the NXTLineLeader device. This value divided by PID Factor for Kd is the Derivative value for the PID control. Suggested value is 8 with a divisor factor of 32 (which is also a factory default), start with this value, and tune it to meet your needs. Value ranges between 0 and 255. The port must be configured as a Lowspeed port before using this function.
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