65 lines
1.5 KiB
C++
Executable file
65 lines
1.5 KiB
C++
Executable file
/* Stereo peak meter example, assumes Audio adapter but just uses terminal so no more parts required.
|
|
|
|
This example code is in the public domain
|
|
*/
|
|
|
|
#include <Audio.h>
|
|
#include <Wire.h>
|
|
#include <SPI.h>
|
|
#include <SD.h>
|
|
#include <SerialFlash.h>
|
|
|
|
const int myInput = AUDIO_INPUT_LINEIN;
|
|
// const int myInput = AUDIO_INPUT_MIC;
|
|
|
|
AudioInputI2S audioInput; // audio shield: mic or line-in
|
|
AudioAnalyzePeak peak_L;
|
|
AudioAnalyzePeak peak_R;
|
|
AudioOutputI2S audioOutput; // audio shield: headphones & line-out
|
|
|
|
AudioConnection c1(audioInput,0,peak_L,0);
|
|
AudioConnection c2(audioInput,1,peak_R,0);
|
|
AudioConnection c3(audioInput,0,audioOutput,0);
|
|
AudioConnection c4(audioInput,1,audioOutput,1);
|
|
|
|
AudioControlSGTL5000 audioShield;
|
|
|
|
|
|
void setup() {
|
|
AudioMemory(6);
|
|
audioShield.enable();
|
|
audioShield.inputSelect(myInput);
|
|
audioShield.volume(0.5);
|
|
Serial.begin(9600);
|
|
}
|
|
|
|
// for best effect make your terminal/monitor a minimum of 62 chars wide and as high as you can.
|
|
|
|
elapsedMillis fps;
|
|
uint8_t cnt=0;
|
|
|
|
void loop() {
|
|
if(fps > 24) {
|
|
if (peak_L.available() && peak_R.available()) {
|
|
fps=0;
|
|
uint8_t leftPeak=peak_L.read() * 30.0;
|
|
uint8_t rightPeak=peak_R.read() * 30.0;
|
|
|
|
for(cnt=0;cnt<30-leftPeak;cnt++) {
|
|
Serial.print(" ");
|
|
}
|
|
while(cnt++<30) {
|
|
Serial.print("<");
|
|
}
|
|
Serial.print("||");
|
|
for(cnt=0;cnt<rightPeak;cnt++) {
|
|
Serial.print(">");
|
|
}
|
|
while(cnt++<30) {
|
|
Serial.print(" ");
|
|
}
|
|
Serial.println();
|
|
}
|
|
}
|
|
}
|