Revision 0:cff19fd9a3be, committed 2015-11-04

Comitter:

sewins

Date:

Wed Nov 04 21:47:34 2015 +0000

Commit message:

Published beginnings of PWM expansion

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/elec350.lib	Wed Nov 04 21:47:34 2015 +0000
@@ -0,0 +1,1 @@
+https://developer.mbed.org/users/sewins/code/elec350/#cbbb5ce60368

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Nov 04 21:47:34 2015 +0000
@@ -0,0 +1,50 @@
+#include "mbed.h"
+
+#include "microphone.h"
+#include "led.h"
+
+int main()
+{
+    Microphone microphone;
+    microphone.start();
+
+    Led greenLed("green");
+    Led orangeLed("orange");
+    Led redLed("red");
+    Led blueLed("blue");
+
+    while(1) {
+
+        int16_t maxReading = 0;
+        int16_t Reading = 0;
+
+        for (int i = 0; i < 128; i++) {
+            Reading = microphone.read();
+            if (Reading <0) {
+                (Reading = -Reading);
+            }
+
+            if (Reading > maxReading) {
+                (maxReading = Reading);
+            }
+            if (maxReading >1) {
+                redLed.On();
+            }
+            if (maxReading >5) {
+                blueLed.On();
+            }
+            if (maxReading >10) {
+                greenLed.On();
+            }
+            if (maxReading >15) {
+                orangeLed.On();
+            }
+        }
+        wait(0.003);
+        redLed.Off();
+        blueLed.Off();
+        greenLed.Off();
+        orangeLed.Off();
+    }
+
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Nov 04 21:47:34 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/34e6b704fe68
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/soft_pwm.h	Wed Nov 04 21:47:34 2015 +0000
@@ -0,0 +1,25 @@
+#ifndef _SOFT_PWM_
+#define _SOFT_PWM_
+
+#include "mbed.h"
+
+class SoftPwm
+{
+private:
+    float period;
+    float dutyCycle;
+    Timer timer;
+    
+public:
+    SoftPwm(float initialPeriod, float initialDutycycle);
+
+    float getPeriod();
+    float getDutyCycle();
+    void setPeriod(float newPeriod);
+    void setDutyCycle(float newDutyCycle);
+
+    bool isOn();
+
+};
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/soft_pwn.cpp	Wed Nov 04 21:47:34 2015 +0000
@@ -0,0 +1,40 @@
+#include "soft_pwm.h"
+
+SoftPwm::SoftPwm(float initialPeriod, float initialDutyCycle)
+{
+    this->period = initialPeriod;
+    this->dutyCycle = initialDutyCycle;
+
+    this->timer.start();
+}
+
+float SoftPwm::getPeriod()
+{
+    return this->period;
+}
+float SoftPwm::getDutyCycle()
+{
+    return this->dutyCycle;
+}
+void SoftPwm::setPeriod(float newPeriod)
+{
+    this->period = newPeriod;
+}
+void SoftPwm::setDutyCycle(float newDutyCycle)
+{
+    this->dutyCycle = newDutyCycle;
+}
+
+bool SoftPwm::isOn()
+{
+    float onPhaseDuration = this->dutyCycle * this->period;
+    float currentTime = this->timer.read();
+    if (currentTime > this->period) {
+        this->timer.reset();
+    }
+    if (currentTime<onPhaseDuration) {
+        return true;
+    } else {
+        return false;
+    }
+}
\ No newline at end of file