Andrea Corrado / Mbed 2 deprecated MAX9814_LED_Sound_Indicator

Program to control Electret Microphone Amplifier - MAX9814 from adafruit. Allows: To sample analogue voltage to transform into rough sound level. Transfer sound level to visual indicator, volume bar such as 4 LEDs on LPC11U24.

Dependencies:   MAX9814_Electret_Microphone_LED_Volume_Indicator mbed

Files at this revision

API Documentation at this revision

Revision 1:380e6ab41172, committed 2014-11-02

Comitter:
andcor02
Date:
Sun Nov 02 17:12:22 2014 +0000
Parent:
0:d096ca2ffef0
Child:
2:204df97fe23a
Commit message:
Intergrated Into h. cpp. files

Changed in this revision

Hammer_MicrophoneSensor.c Show diff for this revision Revisions of this file
Hammer_MicrophoneSensor.cpp Show annotated file Show diff for this revision Revisions of this file
Hammer_MicrophoneSensor.h Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/Hammer_MicrophoneSensor.c	Sun Nov 02 17:00:16 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,103 +0,0 @@
-//#include "mbed.h"
-//#include "Hammer_MicrophoneSensor.h"
-//
-//MAX9814::MAX9814(PinName pin): _pin(pin), _led1(LED1), _led2(LED2), _led3(LED3), _led4(LED4) {
-//}
-//
-//
-//void MAX9814::led_array(float x ) {
-//
-//    if (_value<x+0.05) {
-//            _led1=0;
-//            _led2=0;
-//            _led3=0;
-//            _led4=0;
-//    }
-//    if (_value>x+0.05&&_value<0.5+x) {
-//            _led1=1;
-//            _led2=0;
-//            _led3=0;
-//            _led4=0;
-//    }
-//    if (_value>0.5+x&&_value<1+x) {
-//            _led1=1;
-//            _led2=1;
-//            _led3=0;
-//            _led4=0;
-//    }
-//    if (_value>1+x&&_value<1.2+x) {
-//            _led1=1;
-//            _led2=1;
-//            _led3=1;
-//            _led4=0;
-//    }
-//    if (_value>1.2+x&&_value<2.8+x) {
-//            _led1=1;
-//            _led2=1;
-//            _led3=1;
-//            _led4=1;
-//    }
-//}
-//
-//float MAX9814::calibration() {
-//    
-//    _t.start();
-//    _t1.start();
-//    float peakToPeak=0, signalMax=0, signalMin=1024;
-//
-//    while (_t1.read()<1) {
-//        while (_t.read_ms()<50) {
-//            _sample=_pin.read();
-//
-//            if (_sample<1024) {
-//                if (_sample>signalMax)
-//                    signalMax=_sample;
-//
-//                else if (_sample<signalMin)
-//                    signalMin=_sample;
-//            }
-//        }
-//     _t.reset();
-//     peakToPeak=signalMax-signalMin;
-//     _value= (peakToPeak*3.3);
-//     _value = floor(_value * 100) / 100;
-//     _sum+=_value;
-//     _count++;
-//    }
-//    _average=_sum/_count;
-//    _t1.reset();
-//
-//    return _average;
-//}
-//
-//float MAX9814::sound_level() {
-//
-//    _t.start();
-//    float peakToPeak=0, signalMax=0, signalMin=1024;
-//
-//    while (_t.read_ms()<50) {
-//        _sample=_pin.read();
-//
-//        if (_sample<1024) {
-//            if (_sample>signalMax)
-//                signalMax=_sample;
-//
-//            else if (_sample<signalMin)
-//                signalMin=_sample;
-//        }
-//    }
-//    _t.reset();
-//    peakToPeak=signalMax-signalMin;
-//    _value= (peakToPeak*3.3);
-//    _value = floor(_value * 100) / 100;
-//    _sum+=_value;
-//    _count++;
-//
-//    return _value;
-//}
-//
-//
-//void MAX9814::volume_indicator() {
-//        led_array(_average);
-//        sound_level();
-//}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Hammer_MicrophoneSensor.cpp	Sun Nov 02 17:12:22 2014 +0000
@@ -0,0 +1,104 @@
+#include "mbed.h"
+#include "Hammer_MicrophoneSensor.h"
+
+MAX9814::MAX9814(PinName pin): _pin(pin), _led1(LED1), _led2(LED2), _led3(LED3), _led4(LED4) {
+    calibration();
+}
+
+
+void MAX9814::led_array(float x ) {
+
+    if (_value<x+0.05) {
+            _led1=0;
+            _led2=0;
+            _led3=0;
+            _led4=0;
+    }
+    if (_value>x+0.05&&_value<0.5+x) {
+            _led1=1;
+            _led2=0;
+            _led3=0;
+            _led4=0;
+    }
+    if (_value>0.5+x&&_value<1+x) {
+            _led1=1;
+            _led2=1;
+            _led3=0;
+            _led4=0;
+    }
+    if (_value>1+x&&_value<1.2+x) {
+            _led1=1;
+            _led2=1;
+            _led3=1;
+            _led4=0;
+    }
+    if (_value>1.2+x&&_value<2.8+x) {
+            _led1=1;
+            _led2=1;
+            _led3=1;
+            _led4=1;
+    }
+}
+
+float MAX9814::calibration() {
+    
+    _t.start();
+    _t1.start();
+    float peakToPeak=0, signalMax=0, signalMin=1024;
+
+    while (_t1.read()<1) {
+        while (_t.read_ms()<50) {
+            _sample=_pin.read();
+
+            if (_sample<1024) {
+                if (_sample>signalMax)
+                    signalMax=_sample;
+
+                else if (_sample<signalMin)
+                    signalMin=_sample;
+            }
+        }
+     _t.reset();
+     peakToPeak=signalMax-signalMin;
+     _value= (peakToPeak*3.3);
+     _value = floor(_value * 100) / 100;
+     _sum+=_value;
+     _count++;
+    }
+    _average=_sum/_count;
+    _t1.reset();
+
+    return _average;
+}
+
+float MAX9814::sound_level() {
+
+    _t.start();
+    float peakToPeak=0, signalMax=0, signalMin=1024;
+
+    while (_t.read_ms()<50) {
+        _sample=_pin.read();
+
+        if (_sample<1024) {
+            if (_sample>signalMax)
+                signalMax=_sample;
+
+            else if (_sample<signalMin)
+                signalMin=_sample;
+        }
+    }
+    _t.reset();
+    peakToPeak=signalMax-signalMin;
+    _value= (peakToPeak*3.3);
+    _value = floor(_value * 100) / 100;
+    _sum+=_value;
+    _count++;
+
+    return _value;
+}
+
+
+void MAX9814::volume_indicator() {
+        led_array(_average);
+        sound_level();
+}

--- a/Hammer_MicrophoneSensor.h	Sun Nov 02 17:00:16 2014 +0000
+++ b/Hammer_MicrophoneSensor.h	Sun Nov 02 17:12:22 2014 +0000
@@ -1,27 +1,29 @@
-//#ifndef MBED_MIC_H
-//#define MBED_MIC_H
-//
-//#include "mbed.h"
-//
-//class MAX9814 {
-//    
-//public:
-//
-//    MAX9814(PinName pin);
-//    
-//    void led_array(float x);
-//    
-//    float calibration();
-//    
-//    float sound_level();
-//
-//protected:
-//    AnalogIn _pin;
-//    BusOut _led1, _led2, _led3, _led4;
-//    float _value,_sum,_average;
-//    int _count;
-//    float _sample;
-//    Timer _t,_t1;
-//};
-//
-//#endif
\ No newline at end of file
+#ifndef MBED_MIC_H
+#define MBED_MIC_H
+
+#include "mbed.h"
+
+class MAX9814 {
+    
+public:
+
+    MAX9814(PinName pin);
+    
+    void led_array(float x);
+    
+    void volume_indicator();
+    
+    float calibration();
+    
+    float sound_level();
+
+protected:
+    AnalogIn _pin;
+    BusOut _led1, _led2, _led3, _led4;
+    float _value,_sum,_average;
+    int _count;
+    float _sample;
+    Timer _t,_t1;
+};
+
+#endif
\ No newline at end of file

--- a/main.cpp	Sun Nov 02 17:00:16 2014 +0000
+++ b/main.cpp	Sun Nov 02 17:12:22 2014 +0000
@@ -1,136 +1,14 @@
 #include "mbed.h"
-//#include "Hammer_MicrophoneSensor.h"
+#include "Hammer_MicrophoneSensor.h"
 Serial pc (USBTX, USBRX);
 
 
-
-
-class MAX9814 {
-    
-public:
-
-    MAX9814(PinName pin): _pin(pin), _led1(LED1), _led2(LED2), _led3(LED3), _led4(LED4) {
-    }
-
-
-void led_array(float x ) {
-
-    if (_value<x+0.05) {
-            _led1=0;
-            _led2=0;
-            _led3=0;
-            _led4=0;
-    }
-    if (_value>x+0.05&&_value<0.5+x) {
-            _led1=1;
-            _led2=0;
-            _led3=0;
-            _led4=0;
-    }
-    if (_value>0.5+x&&_value<1+x) {
-            _led1=1;
-            _led2=1;
-            _led3=0;
-            _led4=0;
-    }
-    if (_value>1+x&&_value<1.2+x) {
-            _led1=1;
-            _led2=1;
-            _led3=1;
-            _led4=0;
-    }
-    if (_value>1.2+x&&_value<2.8+x) {
-            _led1=1;
-            _led2=1;
-            _led3=1;
-            _led4=1;
-    }
-}
-
-float calibration() {
-    
-    _t.start();
-    _t1.start();
-    float peakToPeak=0, signalMax=0, signalMin=1024;
-
-    while (_t1.read()<1) {
-        while (_t.read_ms()<50) {
-            _sample=_pin.read();
-
-            if (_sample<1024) {
-                if (_sample>signalMax)
-                    signalMax=_sample;
-
-                else if (_sample<signalMin)
-                    signalMin=_sample;
-            }
-        }
-     _t.reset();
-     peakToPeak=signalMax-signalMin;
-     _value= (peakToPeak*3.3);
-     _value = floor(_value * 100) / 100;
-     _sum+=_value;
-     _count++;
-    }
-    _average=_sum/_count;
-    _t1.reset();
-
-    return _average;
-}
-
-float sound_level() {
-
-    _t.start();
-    float peakToPeak=0, signalMax=0, signalMin=1024;
-
-    while (_t.read_ms()<50) {
-        _sample=_pin.read();
-
-        if (_sample<1024) {
-            if (_sample>signalMax)
-                signalMax=_sample;
-
-            else if (_sample<signalMin)
-                signalMin=_sample;
-        }
-    }
-    _t.reset();
-    peakToPeak=signalMax-signalMin;
-    _value= (peakToPeak*3.3);
-    _value = floor(_value * 100) / 100;
-    _sum+=_value;
-    _count++;
-
-    return _value;
-}
-
-
-void volume_indicator() {
-        led_array(_average);
-        sound_level();
-}
-
-protected:
-    AnalogIn _pin;
-    BusOut _led1, _led2, _led3, _led4;
-    float _value,_sum,_average;
-    int _count;
-    float _sample;
-    Timer _t,_t1;
-
-};
-
-
-
-
 MAX9814 mic(p20);
 
 int main()
 {
-    mic.calibration();
     while (1) {
         mic.volume_indicator();
-        mic.sound_level();
         pc.printf("\n\r Level is %f", mic.sound_level());
     }
 }
\ No newline at end of file