UoK Shed IOT Crossing

Dependencies:   EthernetInterface MQTT mbed-dsp mbed-rtos mbed

Fork of KL25Z_FFT_Demo_tony by Leicester Hackspace

Files at this revision

API Documentation at this revision

Comitter:
Condo2k4
Date:
Thu Jan 14 16:20:28 2016 +0000
Parent:
5:4152530c0cf5
Commit message:
Fixes

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
diff -r 4152530c0cf5 -r 78106c78e577 main.cpp
--- a/main.cpp	Mon Jan 11 11:03:24 2016 +0000
+++ b/main.cpp	Thu Jan 14 16:20:28 2016 +0000
@@ -14,7 +14,7 @@
 //#define HOSTNAME "doughnut.kent.ac.uk"
 #define PORT 1883
 
-enum Mode {RESPONCIVE, OVERRIDE};
+enum Mode {RESPONSIVE, OVERRIDE};
 
 //timer
 Ticker timer;
@@ -35,24 +35,31 @@
 
 //state
 bool personPresent = false;
-volatile Mode mode = RESPONCIVE;
+volatile Mode mode = RESPONSIVE;
 volatile bool checkPresence = false;
 
+volatile bool turnLightsOn = false;
+volatile bool turnLightsOff = false;
+
 void presenceTick() {
     checkPresence = true;
 }
 
 void timeout() {
-    if(mode==RESPONCIVE) pelican = false;
+    if(mode==RESPONSIVE) {
+        turnLightsOff = true;
+    }
     timer.detach();
 }
 
 void messageArrived(MQTT::MessageData& md) {
     MQTT::Message &msg = md.message;
-    if(msg.payloadlen>0) {
-        switch(*(char*)msg.payload) {
-            case 'r': case 'R': mode = RESPONCIVE; if(!personPresent) timer.attach(&timeout,3.0f); break;
-            case 'o': case 'O': mode = OVERRIDE; pelican=true; break;
+    
+    char mode;
+    if(sscanf((char*)msg.payload, "{\"mode\":\"%c\"}", &mode)) {
+        switch(mode) {
+            case 'r': case 'R': mode = RESPONSIVE; if(!personPresent) timer.attach(&timeout,3.0f); break;
+            case 'o': case 'O': mode = OVERRIDE; turnLightsOn=true; break;
         }
     }
 }
@@ -88,9 +95,13 @@
         if(checkPresence) {
             float s = sensor;
             if((s<0.5f)!=personPresent) { //state changed
-                personPresent = !personPresent;
+                personPresent = s<0.5f;
                 
-                sprintf(mqtt_buffer, "{\"personPresent\":%d}", personPresent);
+                if(mode==RESPONSIVE && personPresent) {
+                    sprintf(mqtt_buffer, "{\"personPresent\":1, \"lightState\":1}");
+                } else {
+                    sprintf(mqtt_buffer, "{\"personPresent\":%d}", personPresent);
+                }
                 message.qos = MQTT::QOS0;   // Send at least once
                 // Do not null terminate -- we have a length field, and it will piss off the JS front end
                 message.payloadlen = strlen(mqtt_buffer);
@@ -104,6 +115,26 @@
             }
             checkPresence = false;
         }
+        if(turnLightsOn) {
+            pelican = true;
+            sprintf(mqtt_buffer, "{\"lightState\":1}");
+            message.qos = MQTT::QOS0;   // Send at least once
+            // Do not null terminate -- we have a length field, and it will piss off the JS front end
+            message.payloadlen = strlen(mqtt_buffer);
+            message.payload = (void*)mqtt_buffer;
+            m_client.publish(personTopic, message);
+            turnLightsOn = false;
+        }
+        if(turnLightsOff) {
+            pelican = false;
+            sprintf(mqtt_buffer, "{\"lightState\":0}");
+            message.qos = MQTT::QOS0;   // Send at least once
+            // Do not null terminate -- we have a length field, and it will piss off the JS front end
+            message.payloadlen = strlen(mqtt_buffer);
+            message.payload = (void*)mqtt_buffer;
+            m_client.publish(personTopic, message);
+            turnLightsOff = false;
+        }
         
         m_client.yield(100);
     }