Bringinh all the pieces together. #2 #7

RaspberryPi/configreader.c

@@ -42,3 +42,33 @@ int cfgreadpinamount(void) {
     pins = config_lookup(&cfg, "pins");
     return config_setting_length(pins);
 } 
+
+int cfgreadsensornodes(sensornode *nodes, int nodecount) {
+    sensornode *currentNode = nodes;
+    
+    config_setting_t *sensornodes = config_lookup(&cfg, "sensornodes");
+    if (sensornodes != NULL) {
+        int count = nodecount = config_setting_length(sensornodes); //Read amount of sensornodes and save it in nodecount
+        int i;
+        
+        for(i = 0; i < count; ++i) {
+            config_setting_t *sensornodesetting = config_setting_get_elem(sensornodes, i);
+            
+            /* Only output the record if all of the expected fields are present. */
+            const char *ip;
+            
+            if (!config_setting_lookup_string(sensornodesetting, "ip", &ip))
+                continue;
+            
+            currentNode->ip = ip;
+            //if (i < count - 1) { //stop at last item
+                currentNode->next = malloc(sizeof(sensornode));
+                currentNode = currentNode->next;
+            //}
+            
+        }
+        return 1;
+        
+    }
+    
+}

RaspberryPi/configreader.h

@@ -3,3 +3,8 @@ void cfgdestroy(void);
 void cfgreinit(void);
 int cfgreadpinnumber(int element);
 int cfgreadpinamount(void);
+
+typedef struct sensornode {
+    char *ip;
+    struct sensornode *next;
+}

RaspberryPi/main.c

@@ -5,6 +5,7 @@
 #include <unistd.h>
 #include "sendmysql.h"
 #include "configreader.h"
+#include "restcurl.h"
 
 int main(void) {
     if (wiringPiSetup () == -1)
@@ -18,8 +19,8 @@ int main(void) {
     
     cfginit();
     
-    sensor data;
+    sensor data; //data of the raspberrypi
-    
+    data.node_id = 0; //Node ID 0 --> RaspberryPi
     int i;
     for (i = 0; i < cfgreadpinamount(); i++) {
         data.pin = cfgreadpinnumber(i);
@@ -27,6 +28,25 @@ int main(void) {
         printf("Pin: %i, %.2f, %.2f\n", data.pin, data.temperature, data.humidity);
         insertData(&data);
     }
-
+    
+    sensornode nodes; //Settings of ESP8266 sensor nodes
+    int nodecount;
+    cfgreadsensornodes(&nodes, nodecount); //read settings
+    sensor nodedata; //Should be a linked list for further data usage
+    sensornode *currentNode = nodes;
+    
+    
+    for (i = 0; i < nodecount; i++) {
+        //start rest requests
+        nodedata.ip = currentNode->ip;
+        getRestSensor(&nodedate);
+        
+        printf("Temperature: %f, Humidity: %f, NodeID: %i", nodedata.temperature, nodedata.humidity, nodedata.node_id);
+        
+        currentNode = currentNode->next;
+    }
+    
+    
+    
     return 0;
 }

RaspberryPi/makefile

@@ -5,9 +5,9 @@ VERSION = 1.0
 CC      = cc
 CFLAGS  = -Wall -O3 -D_GNU_SOURCE -D_REENTRANT -DVERSION=\"$(VERSION)\" `mysql_config --cflags`
 #LDFLAGS = -lm -lpthread `gtk-config --cflags` `gtk-config --libs` -lgthread
-LDFLAGS = -lwiringPi -lconfig `mysql_config --libs`
+LDFLAGS = -lwiringPi -lconfig `mysql_config --libs` -lcurl
 
-OBJ = main.o dht22.o sendmysql.o configreader.o
+OBJ = main.o dht22.o sendmysql.o configreader.o cJSON.o restcurl.o calculate.o
 
 dht22: $(OBJ)
 	$(CC) $(CFLAGS) -o humidityPi $(OBJ) $(LDFLAGS)

RaspberryPi/restcurl.c

@@ -1,5 +1,6 @@
 #include "restcurl.h"
 #include <curl/curl.h>
+#include <string.h>
 
 static struct url_data {
     size_t size;
@@ -64,13 +65,18 @@ static char *handle_url(char *url) {
 }
 
 int getRestSensor(sensor *sensor) {
-    char *data = handle_url(sensor->ip);
+    char url[25];
+    url = "http://";
+    strcat(url, sensor->ip);
+    char *data = handle_url(url);
     if (data) {
         cJSON *jsondata = cJSON_Parse(data);
         cJSON *temperature = cJSON_GetObjectItemCaseSensitive(jsondata, "temperature");
         cJSON *humidity = cJSON_GetObjectItemCaseSensitive(jsondata, "humidity");
+        cJSON *id = cJSON_GetObjectItemCaseSensitive(jsondata, "id");
         sensor->temperature = (float)temperature->valuedouble;
         sensor->humidity = (float)humidity->valuedouble;
+        sensor->node_id = id->valueint;
         
         //free
         cJSON_Delete(jsondata);

RaspberryPi/settings.cfg

@@ -1 +1,6 @@
 pins=[7]; 
+
+
+sensornodes = ( { ip = "192.168.0.101";},
+                { ip = "192.168.0.102";}
+);