Ubidots example for WizFi310

Dependencies:   NetworkSocketAPI WizFi310Interface mbed

Prerequisite

This example is for sending data to Ubidots(Server).

WIZwiki-W7500 and WizFi310 Shield act as TCP client mode.

To implement this function, you need a Platform board and Wi-Fi board. Below are what we used.

  • WIZwiki-W7500 from WIZnet (Platform board)
  • WizFi310 from WIZnet (Wi-Fi board)
  • ETC: PGM5537(CDS sensor) + 10k resistor

Hardware Configuration

WIZwiki-W7500 Pin map

pin map

  • D0 is for RXD, D1 is for TXD
  • D6 is for CTS, D7 is for RTS
  • D9 is for RESET

WizFi310 Pin map

pin map

  • J1 is for RXD, J3 is for TXD
  • SW6-1 is connected to D6 for RTS, SW6-2 is connected to D7 for CTS
  • SW5-3 is connected to D9 for RESET

Software

main.cpp

#include "TCPSocket.h"
#include "mbed.h"
#include "WizFi310Interface.h"

#define AP_SSID     "SSID"
#define AP_PASSWORD "PASS"
#define AP_SECURITY NSAPI_SECURITY_WPA2

#define VARID_LUX   "Ubidots Variable ID"
#define TOKEN       "Ubidots Token value"

#if defined(TARGET_WIZWIKI_W7500)
    WizFi310Interface wifi(D1, D0, D7, D6, D9, NC, 115200);
    Serial pc(USBTX,USBRX);
    AnalogIn myLux(PC_15);
#endif

int main()
{
    int errConnect;
    char str[50] = "";
    char http_cmd[1000] = "";
    char buffer[2048] = "";
    
    pc.baud(115200);
    printf("WizFi310 NetworkSocketAPI TCP Client Ubidots Example\r\n");
            
    wifi.connect(AP_SSID, AP_PASSWORD, AP_SECURITY);
    
    const char *ip = wifi.get_ip_address();
    const char *mac = wifi.get_mac_address();
    printf("IP address is: %s\r\n", ip ? ip : "No IP");
    printf("MAC address is: %s\r\n", mac ? mac : "No MAC");

    SocketAddress addr(&wifi, "things.ubidots.com", 80);
    printf("things.ubidots.com resolved to: %s\r\n", addr.get_ip_address());

    TCPSocket socket(&wifi);
    socket.set_timeout(1000);   // Set Block Mode.
    errConnect = socket.connect("things.ubidots.com", 80);
    
    while (true) {
        if(errConnect!=0) {
            printf("\r\ncould not connect to socket : error = %d\r\n", errConnect);
            errConnect = socket.connect("things.ubidots.com", 80);
        } else {
            printf("socket connected\r\n");
            break;
        }
    }
            
    sprintf((char *)str, "{\"value\": %d}", (int)(myLux.read()*10000));
    printf("%s\r\n", str);
    int len = strlen((char *)str);
    
    sprintf((char *)http_cmd,"POST /api/v1.6/variables/%s/values HTTP/1.1\r\nContent-Type: application/json\r\nContent-Length: %d\r\nX-Auth-Token: %s\r\nHost: things.ubidots.com\r\n\r\n%s\r\n\r\n",
    VARID_LUX,len, TOKEN, str);
    //printf("%s\n", http_cmd);

    socket.send((char *)http_cmd, sizeof((char *)http_cmd));
    
    socket.recv(buffer, sizeof(buffer));
    printf("%s",buffer);
    wait(5);
    
    socket.close();
    wifi.disconnect();
    
    printf("Done\r\n");

}


Caution

This example requires "Variable ID" and "TOKEN value" that can be obtained by signning up to the Ubidots. //

Revision:
0:1a8e6ca12976
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Apr 12 01:31:32 2017 +0000
@@ -0,0 +1,88 @@
+/* NetworkSocketAPI Example Program
+ * Copyright (c) 2015 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+#include "TCPSocket.h"
+#include "mbed.h"
+#include "WizFi310Interface.h"
+
+#define AP_SSID     "SSID"
+#define AP_PASSWORD "PASS"
+#define AP_SECURITY NSAPI_SECURITY_WPA2
+
+#define VARID_LUX   "Ubidots Variable ID"
+#define TOKEN       "Ubidots Token value"
+
+#if defined(TARGET_WIZWIKI_W7500)
+    WizFi310Interface wifi(D1, D0, D7, D6, D9, NC, 115200);
+    Serial pc(USBTX,USBRX);
+    AnalogIn myLux(PC_15);
+#endif
+
+int main()
+{
+    int errConnect;
+    char str[50] = "";
+    char http_cmd[1000] = "";
+    char buffer[2048] = "";
+    
+    pc.baud(115200);
+    printf("WizFi310 NetworkSocketAPI TCP Client Ubidots Example\r\n");
+            
+    wifi.connect(AP_SSID, AP_PASSWORD, AP_SECURITY);
+    
+    const char *ip = wifi.get_ip_address();
+    const char *mac = wifi.get_mac_address();
+    printf("IP address is: %s\r\n", ip ? ip : "No IP");
+    printf("MAC address is: %s\r\n", mac ? mac : "No MAC");
+
+    SocketAddress addr(&wifi, "things.ubidots.com", 80);
+    printf("things.ubidots.com resolved to: %s\r\n", addr.get_ip_address());
+
+    TCPSocket socket(&wifi);
+    socket.set_timeout(1000);   // Set Block Mode.
+    errConnect = socket.connect("things.ubidots.com", 80);
+    
+    while (true) {
+        if(errConnect!=0) {
+            printf("\r\ncould not connect to socket : error = %d\r\n", errConnect);
+            errConnect = socket.connect("things.ubidots.com", 80);
+        } else {
+            printf("socket connected\r\n");
+            break;
+        }
+    }
+            
+    sprintf((char *)str, "{\"value\": %d}", (int)(myLux.read()*10000));
+    printf("%s\r\n", str);
+    int len = strlen((char *)str);
+    
+    sprintf((char *)http_cmd,"POST /api/v1.6/variables/%s/values HTTP/1.1\r\nContent-Type: application/json\r\nContent-Length: %d\r\nX-Auth-Token: %s\r\nHost: things.ubidots.com\r\n\r\n%s\r\n\r\n",
+    VARID_LUX,len, TOKEN, str);
+    //printf("%s\n", http_cmd);
+
+    socket.send((char *)http_cmd, sizeof((char *)http_cmd));
+    
+    socket.recv(buffer, sizeof(buffer));
+    printf("%s",buffer);
+    wait(5);
+    
+    socket.close();
+    wifi.disconnect();
+    
+    printf("Done\r\n");
+
+}
+