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MB: Motor Brake: EXP Bus Protocol Reference

Understanding EXP board addressing

This command is used with FAST Expansion and FAST breakout boards via a FAST Serial Protocol (FSP) connection to the EXP Bus. Please read the EXP Overview to understand the operation of these commands and addresses.

This command is used to actively brake a motor on the expansion bus (generally this means applying power on both leads for a basic DC motor). This can be an expansion board (with a 2-character address) or a breakout board (with a 3-character address).

Command Syntax

MB:<index>,<time_ms><cr>

<index>

This is the motor number you want to update. Individual motors are accessed numbered 0-31 (hex 00 - 1F) since that's the maximum number of motors that can be attached to a single breakout board.

<time_ms>

How long will the motor be actively braked in milliseconds, ranging from 0-65535 (0x0000 - 0xFFFF hex), after this power will be removed.

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