Frederick Harrington
Plant - End Point Device https://moodle.kent.ac.uk/2015/pluginfile.php/226454/mod_resource/content/2/co657_assessment_5.pdf
Dependencies: C12832 LM75B mbed
Revision 0:df7639368358, committed 2016-01-25
- Comitter:
- co657_fh98
- Date:
- Mon Jan 25 18:15:39 2016 +0000
- Commit message:
- Plant - End Point Device
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/C12832.lib Mon Jan 25 18:15:39 2016 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/chris/code/C12832/#7de323fa46fe
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/LM75B.lib Mon Jan 25 18:15:39 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/chris/code/LM75B/#6a70c9303bbe
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Jan 25 18:15:39 2016 +0000
@@ -0,0 +1,125 @@
+/**
+ CO657 Assessment 5 - Aggregation and Visualisation - SmartPlant
+ https://moodle.kent.ac.uk/2015/mod/resource/view.php?id=190889
+
+ Plant Code End point device.
+ Reads from LM75B temperature device and sends over Xbee to broker device.
+ Receives commands from broker and frontend. These commands effect the speaker and the RGB light.
+
+ Copyright (C) Frederick Harrington(fh98) and Harry Jones(hj80), University Of Kent
+ 24/01/2016 **/
+
+/** Libraries used **/
+#include "mbed.h"
+#include "C12832.h"
+#include "LM75B.h"
+
+/** Hardware declarations used **/
+LM75B tempSen (D14, D15);
+PwmOut light (D9);
+C12832 lcd (D11, D13, D12, D7, D10);
+Serial xbee (D1, D0);
+PwmOut spkr(D6);
+InterruptIn sw2_int (PTC6);
+char* name = "Plant1";
+static volatile int sw2_trig;
+int spkr_Alrt;
+
+//Interrupt function
+void sw2_interrupt (void) {
+ sw2_trig = 1;
+}
+
+/** Main method **/
+int main() {
+ //Method declarations
+ double temp = tempSen.read();
+ double average = 0.0;
+ int counter = 1.0;
+ double last = 0.0;
+ double change = 0.0;
+ double sum = 0.0;
+ spkr.period(0.5);
+ sw2_int.mode (PullUp);
+ sw2_int.fall (&sw2_interrupt);
+
+ //Main Infinate Loop
+ while(true) {
+ wait(1.0);
+ //Read temp from sensor
+ temp = tempSen.read();
+ //Print temperature over Xbee
+ xbee.printf("%.2f\r\n", temp);
+
+ //Calculations for average
+ sum += temp;
+ average = sum / counter;
+ counter++;
+
+ //Displaying to LCD
+ lcd.cls();
+ lcd.locate(1,1);
+ lcd.printf("P1");
+ lcd.locate(32,1);
+ lcd.printf("Temp: %.2fC\r\n", temp);
+ lcd.locate(26,11);
+ lcd.printf("Average: %.2fC\r\n", average);
+ lcd.locate(14,21);
+ //Displays either no change, increase or decrease.
+ if(last > temp) {
+ change = last - temp;
+ lcd.printf("Temp Increase By %.2f", change);
+ } else if(temp < last) {
+ change = temp - last;
+ lcd.printf("Temp Decreased By %.2f", change);
+ } else {
+ lcd.printf("No Temperature Change");
+ }
+ //Record the last sent temperature
+ last = temp;
+
+ //Checks for commands and sets either the speaker or RBG light.
+ if(xbee.readable()){
+ //Get the command from the broker.
+ char com = xbee.getc();
+
+ switch(com){
+ case 'a': case 'A':
+ light = 1.0;
+ break;
+ case 'b': case 'B':
+ light = 0.0;
+ break;
+ case 'c':case 'C':
+ spkr = 1.0;
+ spkr_Alrt = 1;
+ break;
+ case 'd': case 'D':
+ spkr = 0.0;
+ spkr_Alrt = 0;
+ break;
+ default :
+ break;
+ }
+ }
+ //Reseting triggers on the press of SW2
+ if (sw2_trig) {
+ spkr_Alrt = 0;
+ spkr = 0.0;
+ sw2_trig = 0;
+ }
+ //Speaker implementations
+ if(spkr_Alrt == 1) {
+ for (float i=2000.0; i<10000.0; i+=100) {
+ spkr.period(1.0/i);
+ spkr=0.5;
+ wait(0.02);
+ }
+ }
+ wait(5.0);
+ }
+}
+
+
+
+
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Jan 25 18:15:39 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/165afa46840b \ No newline at end of file