Serial Control - sparkfun WIG-13660 Manual

Note: Any inputs to the Qwiic Tsunami must use 3.3V logic-levels; otherwise, users risk permanently
damaging their board.
The trigger pins are the primary inputs for the Qwiic Tsunami. They can be configured to trigger various actions on
the Qwiic Tsunami. By default, the 16 trigger pins are active-high and are triggered by pulling the pins low.

Serial Control

Note: Any inputs to the Qwiic Tsunami must use 3.3V logic-levels; otherwise, users risk permanently
damaging their board.
Users have the option of controlling the Qwiic Tsunami through the serial pins. Users can directly connect a USB-
to-serial UART bridge like the Serial Basic Breakout or they can connect a microcontroller like the RedBoard Qwiic
Plus.
The trigger pins on the Qwiic Tsunami. (Click to enlarge)