Diff: roam_v2.cpp

Revision:

1:3d2e110f5dc8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/roam_v2.cpp	Thu Apr 09 22:09:50 2015 +0000
@@ -0,0 +1,130 @@
+/** Seed Team 20 - Michael Zonnenberg
+    Board: Arch GPRS V2
+    Sensors: DHT11 temp&humidity
+ */
+ 
+ #include "mbed.h"
+ #include "ARCH_GPRS_V2_HW.h"
+ #include "HTTPClient.h"
+ #include "GPRSInterface.h"
+ #include "Blinker.h"
+ #include "DHT.h"
+ #include "i2c_uart.h"
+ #include "ARCH_GPRS_Sleep.h"
+ 
+//LED Blink
+Blinker yellowLED(LED1), redLED(LED2), greenLED(LED3), blueLED(LED4);
+
+//DHT11 Sensor
+int temp, humidity;
+DHT sensor(P1_14, DHT11);
+
+//TEMT6000 Ambient Light Sensor, Using P0_12
+int light;
+AnalogIn lightSensor(P0_12);
+
+#define BROADCAST_TIME            100     
+#define THINGSPEAK_APIKEY "QY931S2NP23LG9IM"    
+                 
+#define HTTP_POST_URL "http://api.thingspeak.com/update"
+
+#define TEST_HTTP_GET       1
+#define TEST_HTTP_POST      1
+#define TEST_HTTP_PUT       1
+#define TEST_HTTP_DELETE    1
+
+#define PIN_TX                  P1_27
+#define PIN_RX                  P1_26
+
+#define TS_FEED_ID              25152
+#define TS_API                  "JDMPGG7T7O8OY45M"
+
+char* thingSpeakUrl = "http://api.thingspeak.com/update";
+char* thingSpeakKey = TS_API;
+char urlBuffer[256];
+char timeBuffer[64];
+char str[1024];
+GPRSInterface gprs(PIN_TX,PIN_RX,115200,"internetd.gdsp",NULL,NULL);
+HTTPClient http;
+/** 
+    Function sends args to thingskpeak
+    Blinks green LED 5 times if success
+    Blinks red LED 5 times if failure
+    @param temperature The temperaure measurment from sensor
+    @param humidity The humidity measurment from sensor
+    @param light The light measurement from analog sensor
+ */
+void sendToThingSpeak(int sensor1, int sensor2, int sensor3){
+    iot_hw.init(); // power on SIM900
+    
+    int count = 0;
+    while(false == gprs.connect() && count < 5) {
+        wait(2);
+        count += 1;
+    }
+
+    // format url here
+    urlBuffer[0] = 0;
+    sprintf(urlBuffer, "%s?key=%s&field1=%d&field2=%d&field3=%d", thingSpeakUrl, thingSpeakKey, sensor1, sensor2,sensor3);
+
+    // send request
+    HTTPResult res = http.get(urlBuffer, str,128);
+    // and verify the result
+    if (res != HTTP_OK) {
+        redLED.blink(5);
+    } else {
+        greenLED.blink(5);
+    }
+    iot_hw.init_io(); //power down SIM900
+}
+
+/** 
+    Function returns temperature and hunidity reading
+    from DHT11 sensor
+    @return temp The temperature in Farenheit
+    @return hunidity The percent hunidity
+ */
+void getTempHumid(int* temp,int* humidity){
+    int err = 1;
+    int count = 0;
+    iot_hw.grovePwrOn();
+    wait(1); // wait 1 second for device stable status
+    while (err != 0 && count < 4) {
+        err = sensor.readData();
+        count += 1;
+        *temp = sensor.ReadTemperature(FARENHEIT);
+        *humidity = sensor.ReadHumidity();
+        
+        wait(1);
+        } 
+    iot_hw.grovePwrOff();    
+}   
+
+/** Function returns a light reading between 0 and 1000
+    TEMT600 analog ambient light sensor
+    @return light The light reading use to measure lights on/off
+    */
+void getLightReading(int* light)
+{
+        *light = lightSensor*1000;
+}
+
+
+int main()
+{
+    wdt_sleep.wdtClkSetup(WDTCLK_SRC_IRC_OSC);
+
+    PWRON:
+    //get temp and hunidity
+    getTempHumid(&temp,&humidity);
+    //get light reading
+    getLightReading(&light);
+
+    //upload to thingspeak
+    sendToThingSpeak(temp,humidity,light); //blinks green if success, blinks red if failure
+    
+    //sleep for BROADCAST_TIME defined above. WFI with WDT
+    wdt_sleep.sleep(BROADCAST_TIME);
+    
+    goto PWRON;
+}
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