Data Sheet

www.dimensionengineering.com/products/Sabertooth2x32
Battery
Battery selects the type of battery used and the number of cells. It is also possible to change the low
voltage cutoff settings here. These settings go into effect when DIP switch 3 is in the OFF position. See
the Battery section for more details.
Exponential-Mode Mappings
Sabertooth 2x32 can have up to four maps which modify the ratio of input signal to output signal. These
can be used to add a deadband, change the responsiveness of the system, make the Sabertooth only
turn the motors one way, or other uses. Each exponential map is defined by a series of curves. Each
curve is defined by control points. By clicking and dragging the control points, you can change the shape
of the curve. Which exponential map is used for each output is selected with DIP switches and/or
settings in that operating mode’s tab in DEScribe.
Most of the time, what you want is a certain percentage of exponential and a certain amount of
deadband where the motor output is off. These can be handled automatically. Clicking the Exponential
button in the bottom right corner of the window will bring up the Exponential Curve window. By
dragging the sliders, the currently tabbed exponential map can be modified with little effort.
For more customized maps, you may have to add additional segments. To break a segment into two
smaller segments, select the Split tool at the bottom, then click on the curve you wish to divide. The
start and end of the curves can be changed by clicking the black vertical divider bars and dragging right
or left. To remove a segment, select the Delete tool and click on the segment you wish to remove. To
change the curve type, select the segment and change the dropdown from Curve to Linear or Constant.
If you have created a custom exponential map, it is often a good idea to save your settings file for re-use
later. To save a settings file, click File… Save and create a file name.
There are four maps. By default, Exponential mode uses Map 1 for both channels, so it is usually the
only one that needs to be modified. Maps can be modified even if they are not currently being used.