Freetronics Dual Channel H-Bridge Motor Driver Shield
Shield URL: Dual Channel H-Bridge Motor Driver Shield
Tags: hbridge, motor, stepper
2 channel H-bridge for driving either two DC motors or a 4-wire bipolar stepper motor.
Uses Allegro A4954 dual channel H-bridge driver IC, with minimum 8V max 40V 2A peak rating with PWM control of both H-bridges.
External power connection for motor power supply, which can be jumpered to the Arduino to power the Arduino from the shield or vice versa.
Prototyping area to add your own parts.
Selectable current limit per channel: 0.6A, 1.2A, 2A.
Open Source: Yes, OSHW-compliant
License: TAPR Open Hardware License
All pins are jumpered so they can be re-mapped if necessary. Defaults:
D2: Input 4
D3: Input 3
D4: Input 1
D5: Channel B enable
D6: Channel A enable
D7: Input 2