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--- proyectos:vestuario_aqa [2021/05/18 00:18] – kz
+++ proyectos:vestuario_aqa [2021/10/30 23:38] (actual) – kz
@@ Línea 724: / Línea 724: @@
   matrix.show();
   delay(100);
+}
+</code>
+==== código para manipular con microfono la intensidad de la matriz de led ====
+<code c++>
+#include <Arduino.h>
+#include <FastLED.h>
+#define LED_PIN     D2
+#define LED_TYPE    WS2812B
+#define COLOR_ORDER GRB
+#define f false
+#define t true
+const uint8_t kMatrixWidth  = 8;
+const uint8_t kMatrixHeight = 8;
+#define NUM_LEDS (kMatrixWidth * kMatrixHeight)
+int BRIGHTNESS = 60;   // this is half brightness
+CRGB leds[kMatrixWidth * kMatrixHeight];
+#define amarillo CRGB::Yellow
+#define black CRGB::Black
+#define rojo CRGB::Red
+#define blue CRGB::Blue
+int loop_cnt = 0;
+const int sampleWindow = 50; // Sample window width in mS (50 mS = 20Hz)
+unsigned int sample;
+uint8_t noise[kMatrixWidth][kMatrixHeight];
+void setup() {
+  Serial.begin(115200);
+  LEDS.addLeds<LED_TYPE,LED_PIN,COLOR_ORDER>(leds,NUM_LEDS);
+  FastLED.setBrightness(BRIGHTNESS);
+}
+#define ESCENAS 1
+CRGB matrix[ESCENAS][8][8] = {
+  {
+    {blue, blue, blue,blue, blue, blue, blue,blue},
+    {blue, blue, blue,blue, blue, blue, blue,blue},
+    {blue, blue, blue,blue, blue, blue, blue,blue},
+    {blue, blue, blue,blue, blue, blue, blue,blue},
+    {blue, blue, blue,blue, blue, blue, blue,blue},
+    {blue, blue, blue,blue, blue, blue, blue,blue},
+    {blue, blue, blue,blue, blue, blue, blue,blue},
+    {blue, blue, blue,blue, blue, blue, blue,blue},
+  },
+};
+void loop() {
+  for(int i = 0; i< kMatrixHeight; i++) {
+    for(int j = 0; j< kMatrixWidth; j++) {
+      leds[i*kMatrixWidth + j] = matrix[loop_cnt%ESCENAS][i][j];
+    }
+  }
+  unsigned long startMillis= millis();  // Start of sample window
+  unsigned int peakToPeak = 0;   // peak-to-peak level
+  unsigned int signalMax = 0;
+  unsigned int signalMin = 1024;
+  // collect data for 50 mS
+  while (millis() - startMillis < sampleWindow)
+   {
+      sample = analogRead(0);
+      if (sample < 1024)  // toss out spurious readings
+      {
+         if (sample > signalMax)
+         {
+            signalMax = sample;  // save just the max levels
+         }
+         else if (sample < signalMin)
+         {
+            signalMin = sample;  // save just the min levels
+         }
+      }
+   }
+   peakToPeak = signalMax - signalMin;  // max - min = peak-peak amplitude
+   double volts = (peakToPeak * 5.0) / 1024;  // convert to volts
+  int cambiarBrillo = map(volts, 0, 5, 0, 100);
+  Serial.println(cambiarBrillo);
+  FastLED.show();
+  FastLED.setBrightness(cambiarBrillo);
+  loop_cnt++;
 }