LCD-14048 Datasheet, PDF (23/33 Pages) SparkFun Electronics – TeensyView Hookup Guide

float RightBands[40] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
void loop()
{
float loopTime;
int i;
//calc loopTime
unsigned long this_time = millis();
if (this_time > last_time)
{
loopTime = (this_time ­ last_time);
}
last_time = this_time;
//Update data every 20 frames for readability
overlayCounter++;
if (overlayCounter > 20)
{
lastLoopTime = loopTime;
lastCPU = AudioProcessorUsageMax();
AudioProcessorUsageMaxReset();
lastMem = AudioMemoryUsageMax();
AudioMemoryUsageMaxReset();
overlayCounter = 0;
}
//Draw a frame
oled.clear(PAGE);
//Draw left bands
for (i = 0; i < 40; i++)
{
if (leftBands[i] > 0.5) leftBands[i] = 0.25;
oled.line(62 ­ i, 31, 62 ­ i, 31 ­ (leftBands[i] * 127));
}
//Draw Right bands
for (i = 0; i < 40; i++)
{
if (RightBands[i] > 0.5) RightBands[i] = 0.25;
oled.line(65 + i, 31, 65 + i, 31 ­ (RightBands[i] * 127));
}
//Overlay info
// loop time
oled.setCursor(0, 0);
oled.print("Loop=");
oled.print((uint8_t)lastLoopTime);
oled.print("ms");
// Teensy Audio info
oled.setCursor(83, 0);
oled.print("cpu=");
oled.print(lastCPU);
oled.setCursor(91, 8);
oled.print("mem=");
oled.print(lastMem);
// L/R letters
oled.setCursor(15, 24);
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