• dual serial motor controller (DSMC) is designed for high-performance, low-voltage toy motors running on 1.5 - 6 V.
• no minimum motor supply voltage.
• The motor controller can deliver up to 5 A continuously to each channel, without a heat sink
• the two output channels can be coupled to deliver up to 10 A to a single load.

How to use Pololu Low-Voltage Dual Serial Motor Controller

• requires an independent 3.0 - 5.5 V logic supply, which can be higher or lower than the motor supply voltage.  useful for a 3 V motors that you would like to run off of two or three cells but have 5 V logic.
• If you do have a single supply that satisfies both requirements (which would typically mean 3 or 4 cells), the motor controller can be powered off of a single supply.
• LEDs that light up without the motor supply to let troubleshoot your code without robot driving away.
• The 9-pin module is pin-compatible and code-compatible micro dual serial motor controller.
• The low-voltage motor controller shares all of the features of the micro motor controller except for coasting: setting speeds of 0 in forward or reverse will result in braking.
• Can become very hot during operation;
• heatsink can improve performance, but it is not required.
• The motor controller does not feature over-current or over-temperature shutdown.
• Applying reverse battery polarity or attempting to draw too much current will cause permanent damage to the motor controller.
• use thickest and shortest wires.
• 0.1 uF capacitors shoul be installed.
• Battery should deliver the drawn current: at least 1 amp-hour of capacity per 10 amps (about five minutes of operating time.