ECE 4180 / Mbed 2 deprecated 4180-L2-P12

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   mbed

Files at this revision

API Documentation at this revision

Revision 0:1a0cc42c459d, committed 2015-11-28

Comitter:
4180_1
Date:
Sat Nov 28 01:48:05 2015 +0000
Commit message:
ver 1.0

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Nov 28 01:48:05 2015 +0000
@@ -0,0 +1,37 @@
+#include "mbed.h"
+//Adafruit MEMs SPW2430 microphone demo - LEDs display audio level
+BusOut myleds(LED1,LED2,LED3,LED4);
+
+class microphone
+{
+public :
+    microphone(PinName pin);
+    float read();
+    operator float ();
+private :
+    AnalogIn _pin;
+};
+microphone::microphone (PinName pin):
+    _pin(pin)
+{
+}
+float microphone::read()
+{
+    return _pin.read();
+}
+inline microphone::operator float ()
+{
+    return _pin.read();
+}
+
+microphone mymicrophone(p16);
+
+int main()
+{
+    while(1) {
+//read in, subtract 0.67 DC bias, take absolute value, and scale up .1Vpp to 15 for builtin LED display
+        myleds = int(abs((mymicrophone - (0.67/3.3)))*500.0);
+//Use an 8kHz audio sample rate (phone quality audio);
+        wait(1.0/8000.0);
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sat Nov 28 01:48:05 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/9296ab0bfc11
\ No newline at end of file