The power connections on the Qwiic Tsunami. (Click to enlarge)
The input voltage range for the power pins is
5V - 10V
, but we recommend providing a
5V
supply. The current
draw from the Qwiic Tsunami is approximately 220mA (at 5V) at idle with an SD card inserted. When playing audio
files, the current draw increases.
(When testing, playing a single
.wav
file to a mono (single) channel output, the
current draw spiked just past 240mA.)
By default, the board's power is isolated from the
polarized
Qwiic connector
system. Although it isn't
recommended, users can modify the
3V3_Qwiic
jumper to draw power from the Qwiic connector
(see jumper
section below)
. The Qwiic system is meant to run on 3.3V, be sure that another voltage is NOT used with the Qwiic
system.
Polyphonic Engine
The operation of the polyphonic engine on the Tsunami is proprietary to Robertsonics. While we can't go into exact
details on how the board works, here are some highlights of the board:
The primary polyphonic engine components of the Qwiic Tsunami. (Click to enlarge)
Supports up to 4096 uncompressed 16-bit, 44.1kHz mono or stereo WAV files – CD quality
Polyphonic – Play and mix 32 mono or 18 stereo tracks independently and simultaneously