From b3d1dc83755ecd935324603e546439dba2640a8b Mon Sep 17 00:00:00 2001
From: Jason Coon <jasoncoon@users.noreply.github.com>
Date: Sat, 12 Mar 2016 08:35:21 -0600
Subject: [PATCH] Removed MSGEQ7 audio code, doesn't work well yet on the
 EPS8266.

---
 AudioLogic.h                  | 51 -----------------------------------
 esp8266-fastled-webserver.ino | 28 -------------------
 2 files changed, 79 deletions(-)
 delete mode 100644 AudioLogic.h

diff --git a/AudioLogic.h b/AudioLogic.h
deleted file mode 100644
index f2f9a6e..0000000
--- a/AudioLogic.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * ESP8266 + FastLED + IR Remote + MSGEQ7: https://github.com/jasoncoon/esp8266-fastled-webserver
- * Copyright (C) 2015 Jason Coon
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#define MSGEQ7_STROBE_PIN  4
-#define MSGEQ7_RESET_PIN  14
-#define MSGEQ7_OUT_PIN    A0
-
-const uint8_t bandCount = 7;
-
-uint8_t levels[bandCount];
-uint8_t filter = 200;
-
-void initializeAudio() {
-  pinMode(MSGEQ7_OUT_PIN, INPUT);
-  pinMode(MSGEQ7_RESET_PIN, OUTPUT);
-  pinMode(MSGEQ7_STROBE_PIN, OUTPUT);
-  digitalWrite(MSGEQ7_RESET_PIN, LOW);
-  digitalWrite(MSGEQ7_STROBE_PIN, HIGH);
-}
-
-void readAudio() {
-  digitalWrite(MSGEQ7_RESET_PIN, HIGH);
-  digitalWrite(MSGEQ7_RESET_PIN, LOW);
-
-  int level;
-
-  for (uint8_t band = 0; band < bandCount; band++) {
-    digitalWrite(MSGEQ7_STROBE_PIN, LOW);
-    delayMicroseconds(30);
-
-    uint16_t level = analogRead(MSGEQ7_OUT_PIN);
-    levels[band] = map(level, filter, 1023, 0, 255);
-    digitalWrite(MSGEQ7_STROBE_PIN, HIGH);
-  }
-}
-
diff --git a/esp8266-fastled-webserver.ino b/esp8266-fastled-webserver.ino
index 71f174f..cb4c14d 100644
--- a/esp8266-fastled-webserver.ino
+++ b/esp8266-fastled-webserver.ino
@@ -28,7 +28,6 @@ extern "C" {
 #include <FS.h>
 #include <EEPROM.h>
 #include <IRremoteESP8266.h>
-#include "AudioLogic.h"
 #include "GradientPalettes.h"
 
 #define RECV_PIN 12
@@ -44,7 +43,6 @@ const char WiFiAPPSK[] = "";
 // Wi-Fi network to connect to (if not in AP mode)
 const char* ssid = "";
 const char* password = "";
-const char* host = "esp8266";
 
 ESP8266WebServer server(80);
 
@@ -84,7 +82,6 @@ PatternAndNameList patterns = {
   { sinelon, "Sinelon" },
   { juggle, "Juggle" },
   { bpm, "BPM" },
-  { audio, "Audio" },
   { showSolidColor, "Solid Color" },
 };
 
@@ -139,8 +136,6 @@ void setup(void) {
 
   irReceiver.enableIRIn(); // Start the receiver
 
-  initializeAudio();
-
   Serial.println();
   Serial.print( F("Heap: ") ); Serial.println(system_get_free_heap_size());
   Serial.print( F("Boot Vers: ") ); Serial.println(system_get_boot_version());
@@ -301,10 +296,6 @@ void loop(void) {
     return;
   }
 
-  EVERY_N_MILLISECONDS(30) {
-    readAudio();
-  }
-
   // EVERY_N_SECONDS(10) {
   //   Serial.print( F("Heap: ") ); Serial.println(system_get_free_heap_size());
   // }
@@ -889,22 +880,3 @@ void palettetest()
   fill_palette( leds, NUM_LEDS, startindex, (256 / NUM_LEDS) + 1, gCurrentPalette, 255, LINEARBLEND);
 }
 
-void audio() {
-  fill_solid(leds, NUM_LEDS, CRGB::Black);
-
-  uint32_t total = 0;
-  
-  for (uint8_t i = 0; i < bandCount; i++)
-  {
-    total += levels[i];
-  }
-
-  uint16_t level = total / bandCount; // 0 - 256
-
-  uint8_t scaled = level / 10;
-
-  for(uint8_t i = 0; i < scaled && i < NUM_LEDS; i++) {
-    leds[i] = CHSV(level, 255, 255);
-  }
-}
-