Data Sheet
Example pin configuration settings for a Tic Stepper Motor Controller.
To the right of each pin name is a drop-down box where you can assign a function to the pin. Each pin
function is documented below.
Pin function: Default
By default, each pin’s function is set to “Default”. This means that the Tic will automatically choose
the pin’s function and choose the related options (Pull-up, Active high, Analog) based on the “Control
mode”, as shown in the table below.
Control mode
RC position, RC
speed,
Serial / I²C / USB, or
STEP/DIR
Analog position,
Analog speed
Encoder position,
Encoder speed
Default function for
SCL
Serial (SCL), pull-up
enabled
Potentiometer power
Serial (SCL), pull-up
enabled
Default function for
SDA/AN
Serial (SDA), pull-up
enabled
User input, analog
enabled
Serial (SDA), pull-up
enabled
Default function for
TX
Serial (TX) Serial (TX) Encoder input
Default function for
RX
Serial (RX) Serial (RX) Encoder input
Default function for
RC
RC input RC input RC input
Note that the TX and RX pins are always pulled up, and the RC pin is always pulled down.
When a pin’s function is “Default”, the Tic Control Center disables the checkboxes for the Pull-up,
Active high, and Analog options because they will have no effect. However, the states of those
checkboxes will still be saved to the Tic.
Tic Stepper Motor Controller User’s Guide © 2001–2018 Pololu Corporation
5. Details Page 76 of 150