Pololu Dual VNH5019 - Manual (Page 22)

6. Customizing the Shield
This motor driver shield has several features that will not be useful in a typical application but that might benefit an
advanced user. This section explains how to modify the shield from its default state to access these features.
6.a. Remapping the Arduino Connections
For some applications, this shield’s default Arduino pin mappings might not be convenient. For example, maybe you
want to use the 16-bit Timer 1 for making music on a buzzer and would rather use PWMs from Timer 0 to control
your motor speed. Or maybe you don’t care about monitoring the motor current and would rather use all of your
analog inputs for reading sensors. With this in mind, we designed the shield to have break points in the connection
between the Arduino pins and the motor drivers. It is easy to cut the connections at these points and establish new
connections to replace the broken ones if desired.
The connections between the Arduino pins and the VNH5019 motor driver pins are each made through a pair of 0.1″-
spaced holes that are connected on the underside of the shield by a thin trace:
Cuttable traces on the dual VNH5019 motor
driver shield for changing default Arduino pin
mappings.
The following two diagrams show the default pin mapping for motor drivers 1 and 2:
Dual VNH5019 motor driver shield:
Arduino pin mappings for motor driver
1.
Dual VNH5019 motor driver shield:
Arduino pin mappings for motor driver
2.
Pololu Dual VNH5019 Motor Driver Shield User’s Guide © 2001–2014 Pololu Corporation
6. Customizing the Shield Page 22 of 28