Davy Tan
Notification receiver from MQTT server
Revision 0:2e7cf203f9a5, committed 2016-01-25
- Comitter:
- dt276
- Date:
- Mon Jan 25 22:07:49 2016 +0000
- Commit message:
- A5
Changed in this revision
diff -r 000000000000 -r 2e7cf203f9a5 C12832.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/C12832.lib Mon Jan 25 22:07:49 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/askksa12543/code/C12832/#990d5eec2ef6
diff -r 000000000000 -r 2e7cf203f9a5 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Jan 25 22:07:49 2016 +0000
@@ -0,0 +1,85 @@
+#include "mbed.h"
+#include "C12832.h" /* for the LCD */
+#include <string>
+
+/*
+This program allows the device to receive notifications from the MQTT server
+*/
+
+/* Global Variables */
+DigitalOut myled(LED_GREEN);
+Serial pc(USBTX, USBRX); /* serial port to PC */
+C12832 shld_lcd (D11, D13, D12, D7, D10); /* LCD */
+
+
+PwmOut spk (D6);
+
+//connections for RGB LED
+DigitalOut r_led (LED1); //Red indicates temp read off
+DigitalOut g_led (LED2); //green indicates temp read on and printing
+DigitalOut b_led (LED3); //Blue should only be on when first turned on before any human interaction
+
+
+ InterruptIn sw2_int (PTC6); //Button interrupts to be used to stop/resume temperature print out
+ InterruptIn sw3_int (PTA4);
+
+ static volatile int sw2_trig; //allows for randon access, changing value
+ static volatile int sw3_trig;
+
+
+int main() {
+
+ pc.baud (38400);
+
+ shld_lcd.printf("Device ready \r\n");
+ wait(2);
+ shld_lcd.cls(); // clear the display
+
+ while(1) {
+
+ if(pc.readable())
+ {
+ char c;
+ char buffer[128];
+
+
+ int bufSize = sizeof(buffer);
+
+ pc.gets(buffer, 30);
+
+
+ shld_lcd.printf("'%s'\n", buffer); //Prints when data is received i.e. notification
+
+ if (bufSize > 2)
+ {
+ /* speaker code taken from https://developer.mbed.org/users/4180_1/notebook/using-a-speaker-for-audio-output/ */
+ // two tone police siren effect - two periods or two frequencies
+ // increase volume - by changing the PWM duty cycle
+ int i = 0;
+ for (i=0; i<26;)
+ {
+ spk.period(1.0/969.0);
+ spk = float(i)/50.0;
+ wait(.5);
+ spk.period(1.0/800.0);
+ wait(.5);
+ i+=2;
+ }
+
+ spk = 0; //stops speaker
+ wait(2);
+ shld_lcd.cls(); // clear the display
+
+ /* green */
+ r_led = 2;
+ b_led = 2;
+ g_led = 0;
+ //wait(2.5);
+ }
+ /* green */
+ r_led = 2;
+ b_led = 0;
+ g_led = 2;
+ }
+ }
+}
diff -r 000000000000 -r 2e7cf203f9a5 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Jan 25 22:07:49 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/6f327212ef96 \ No newline at end of file