Pololu Qik 2s12v10 Dual Serial Motor Controller

This powerful motor controller allows variable speed and direction control of two large, brushed DC motors using a simple serial interface and provides several advanced features, such as motor acceleration control and configurable current limiting. Automatic baud detection up to 115.2 kbps and inputs for both RS-232 and TTL serial make it easy to add motors to your microcontroller- or computer-based project. The operating voltage range is 6 to 16 V; the continuous current per channel is up to 13 A (30 A peak).Dimensions
Size: 1.86″ x 2.15″ x 0.28″1
Weight: 14 g1
General specifications
Motor driver: VNH2SP30 x2
Motor channels: 2
Control interface: non-inverted TTL serial (2-way); RS-232 serial (1-way)2
Minimum operating voltage: 6 V
Maximum operating voltage: 16 V
Continuous output current per channel: 13 A
Peak output current per channel: 30 A
Current sense: 0.13 V/A
Maximum PWM frequency: 19.7 kHz3
Minimum logic voltage: 2.7 V
Maximum logic voltage: 5.5 V
Reverse voltage protection?: Y
Notes:

1 Without included hardware.
2 Autodetects baud rates between 1200 and 115,200 bps, or can be set for a fixed baud at 115.2, 38.4, or 9.6 kbps baud rate.
3 Can also be configured to use 9.8 kHz, 2.5 kHz, 1.2 kHz, 310 Hz, or 150 Hz PWM frequencies.