Diff: read_microphont.cpp

Revision:

0:fe8967d28c75

Child:

1:e4d5bf9c63f5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/read_microphont.cpp	Mon Apr 27 23:56:50 2015 +0000
@@ -0,0 +1,113 @@
+#include "mbed.h"
+#include "SLCD.h"
+#include "TSISensor.h"
+ 
+ 
+#define CHANNELON   0
+#define CHANNELOFF  1
+#define LCDLEN      10
+#define DATATIME    0.1
+//LCD messages
+ 
+ 
+ 
+// Operating parameters
+#define SIDETONE    700.0   
+#define TONEMIN     200.0
+#define TONEINT     800.00 // So tone max is 1000
+#define TONEON      0.50
+#define TONEOFF     0.0
+#define SPEEDAST    0
+#define TONEAST     1
+ 
+SLCD slcd; //define LCD display
+ 
+TSISensor tsiScaling; // Capacitive sensor/slider
+ 
+AnalogIn analogRand(PTB3);
+PwmOut led(LED_RED);
+DigitalOut outPin(PTC9); //J1-16
+PwmOut soundOut(PTA13);
+Serial pc(USBTX, USBRX);
+ 
+// Global scalars
+char lcdData[LCDLEN];
+ 
+float tonePeriod;
+float toneFreq = SIDETONE;
+ 
+ 
+ 
+void LCDMessNoDwell(char *lMess){
+        slcd.Home();
+        slcd.clear();
+        slcd.printf(lMess);
+} 
+  
+void toneAdjust( float scaling) {
+    int tempInt;
+    
+    toneFreq = TONEMIN + scaling * TONEINT;
+    tonePeriod = 1.0/toneFreq;  
+    soundOut.period(tonePeriod); // adusting period
+    tempInt = (int)toneFreq;
+    sprintf (lcdData,"%4d",tempInt);
+    LCDMessNoDwell(lcdData);
+    return;
+}
+void lightAdjust( float scaling) { // Control brightness of LED
+    float tempDutyFactor;
+    tempDutyFactor = 1.0 - scaling; //LED is a sinking connection 
+                                    // anode is held at 5V
+    led.write(tempDutyFactor); //sdjusting duty factor
+    return;
+}
+int main(){
+    int tempInt;
+    float tempValue;
+    float analogValue;
+    float mx = 0;
+    float mn = 1;
+    float previousDelta = 0;
+    float delta = 0;
+    
+    tonePeriod = 1.0/toneFreq; 
+    soundOut.period(tonePeriod);
+    
+    led.write(CHANNELON);
+    outPin.write(CHANNELOFF);
+    tempInt = (int)toneFreq;
+    sprintf (lcdData,"%4d",tempInt);
+    LCDMessNoDwell(lcdData);
+    wait(DATATIME);   
+    while (true) {
+    
+        tempValue = tsiScaling.readPercentage();
+        for (int i = 0; i < 1000; ++i) {
+            analogValue = analogRand.read();
+            //mn =  mn > analogValue ? analogValue : mn; 
+//            mx = mx < analogValue ? analogValue : mx;
+            if (analogValue > mx){
+                mx = analogValue;
+            } 
+            if (analogValue < mn){
+                mn = analogValue;
+            }
+                
+        }
+        delta = mx - mn;
+        
+        pc.printf("%f    %f    %f    %f\n", analogValue, mx, mn, delta);
+        wait_ms(DATATIME);
+        if(previousDelta !=  delta) {
+            soundOut.write(TONEON); // set duty factor to 505
+            toneAdjust( analogValue);
+            lightAdjust(analogValue);
+            previousDelta = delta;
+        } else { 
+            soundOut.write(TONEOFF); // set dutyfactor to 0%
+            LCDMessNoDwell("SOFF");
+        }       
+        wait(DATATIME);                  
+    } // while forever
+}// end main
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