Data Sheet

www.dimensionengineering.com/products/Sabertooth2x32
RC tab
The R/C tab contains settings that are specific to operation in R/C mode. Because every manufacturer
uses slightly different timing for their R/C signals, it is not unusual to have to change the settings to work
with a specific transmitter and receiver combination, or a specific microcontroller.
Calibration
Depending on what is generating the input signal, different calibration types are most appropriate.
Which other settings are active depends on the calibration type selected for the input. In R/C mode,
these settings will only take effect if DIP switch 6 is set to the OFF position. With DIP switch 6 in the ON
position, the inputs will always be set for Automatic Calibration.
Fixed Calibration
With Fixed calibration, the R/C pulses for minimum speed, maximum speed and zero speed are pre-
defined and do not change during operation. If you are using a microcontroller or other well-defined
signal source, you should always use fixed calibration. When using fixed calibration, you can change the
Servo Min, Servo Max and Servo Center values. While an Arduino can be programmed to send 1000 to
2000us pulses, a Spektrum DX7 transmitter typically sends pulses ranging from 1200 to 1800us. The
Sabertooth 2x32 can be used to read the servo timing of an unknown source by using the Diagnostics
tab.