Revision 13:3b6ad573d38d, committed 2019-11-28

Comitter:

stiotchallenge

Date:

Thu Nov 28 02:29:48 2019 +0000

Parent:

12:80d8e97e81f2

Commit message:

IDW01M1 connecting to Ubidots HTTP

Changed in this revision

--- a/main.cpp	Mon Jan 16 13:26:50 2017 +0000
+++ b/main.cpp	Thu Nov 28 02:29:48 2019 +0000
@@ -1,116 +1,162 @@
-/* SpwfInterface 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.
- */
+/*
+    Copyright (C) 2017 romain reicher
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
 
-#include "mbed.h"
-#include "SpwfInterface.h"
-#include "TCPSocket.h"
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+    
+    About 
+    ---------------------------------------------------------------------
 
+    Send sensors value to Ubidots.
+    This example sends 3 variables to Ubidots.
+        - STM32L476 VBAT/3 internal channel in mV
+        - STM32L476 Internal Temperature Sensor in C
+        - The status of onboard User Button (blue) on NucleoL476RG 
+    Use NucleoL476RG with X-Nucleo-IDW01M1v2 wifi shield
+ 
+    Important note: Some IDW01M1 wifi shield had resistor R21 mounted
+                    which interfere with STLink/SWD programmer.
+                    Please unmount R21 to fix it.
+ 
+    romain reicher
+    Date     :  20/09/2017
+    Revision :  v0.1  
+*/
 
 
-//------------------------------------
-// Hyperterminal configuration
-// 9600 bauds, 8-bit data, no parity
-//------------------------------------
+#include "mbed.h"
+#include "SpwfInterface.h"  
+#include "TCPSocket.h"
 
-Serial pc(USBTX, USBRX);
-DigitalOut myled(LED1);
+/* Wifi Acces Point Settings */ 
+#define AP_SSID         "mtn"            
+#define AP_PASSWORD     "abcd1234"
+#define UBIDOTS_SERVER  "things.ubidots.com"
+#define UBIDOTS_PORT    80
+#define UBIDOTS_TOKEN   "BBFF-tlXz9IxoP0VBBkqhdAKhxuPGrV7TLo"
+#define UBIDOTS_DEVICE  "testrun"
 
-/*************************************
-//FRDM-K64: D9->UART1_TX, D7->UART1_RX
-Pin connections:
-    FRDM      IDW01M1
-   ------    ---------
-    +3v3 <--> +3v3
-    GND  <--> GND
-    D9   <--> D8
-    D7   <--> D2
+/* Communication ressources */
+SpwfSAInterface spwf(D8, D2, false);    
+Serial pc(USBTX, USBRX);
+
+/* Digital ressources */
+DigitalOut myLed(LED1);
+DigitalIn myButton(USER_BUTTON);
+
+/* Analog ressources */
+//AnalogIn adc_vbat(ADC_VBAT);    // VBAT / 3 internal to ADC channel
+//AnalogIn adc_temp(ADC_TEMP);    // Internal Temp Sensor to ADC Channel
+
+/* Global variables */
+float temp = 27.0;//adc_temp.read() * 100;     // Converted in C
+float batt = 3000; //adc_vbat.read() * 30000;   // Converted in mV 
+float value = ubidots.get(DEVICE_LABEL_TO_RETRIEVE_VALUES_FROM, VARIABLE_LABEL_TO_RETRIEVE_VALUES_FROM); 
+bool status = false;
 
-SpwfSAInterface spwf(D9, D7, false);
-*************************************/
-/*************************************
-//LPCXpresso11U68: D9->UART1_TX, D7->UART1_RX
-Pin connections:
-    LPC      IDW01M1
-   ------    ---------
-    +3v3 <--> +3v3
-    GND  <--> GND
-    A1   <--> D8
-    A2   <--> D2
-
-SpwfSAInterface spwf(A1, A2, false);
-*************************************/
+/**
+  * @brief  Main program
+  * @param  None
+  * @retval None
+  */
+int main() 
+{
+    /* Configure Serial baud rate */
+    pc.baud(115200);
+    
+    /* Update status variable state depending USER_BUTTON state */
+    if (myButton == 0)
+        status = true;
+    else
+        status = false;
+    
+    TCPSocket socket(&spwf);
+    char sendBuffer[256];
+    char message[64];
+    int err;
+    
+    /* ######################## WIFI CONNECTION ######################## */
 
-//NUCLEO: D8->UART1_TX (PA_9), D2->UART1_RX (PA_10)
-SpwfSAInterface spwf(D8, D2, false);
-
-int main() {
-    int err;    
-    char * ssid = "STM";
-    char * seckey = "STMDemo";  
+    pc.printf("IDW01M1 NetworkSocketAPI TCP Client Ubidots\r\n");
+    pc.printf("Connecting to AP\r\n");
     
-    pc.printf("\r\nX-NUCLEO-IDW01M1 mbed Application\r\n");     
-    pc.printf("\r\nconnecting to AP\r\n");
-            
-    if(spwf.connect(ssid, seckey, NSAPI_SECURITY_WPA2)) {      
-        pc.printf("\r\nnow connected\r\n");
-    } else {
-        pc.printf("\r\nerror connecting to AP.\r\n");
+    //* Connect to wifi acces point */    
+    if(spwf.connect(AP_SSID, AP_PASSWORD, NSAPI_SECURITY_WPA2)) 
+    {      
+        pc.printf("Now connected\r\n");
+    } 
+    else
+    {
+        pc.printf("Error connecting to AP.\r\n");
         return -1;
     }   
-
-    const char *ip = spwf.get_ip_address();
-    const char *mac = spwf.get_mac_address();
     
-    pc.printf("\r\nIP Address is: %s\r\n", (ip) ? ip : "No IP");
-    pc.printf("\r\nMAC Address is: %s\r\n", (mac) ? mac : "No MAC");    
+    /* #################### GET CONNECTION INFOS ######################## */
     
-    SocketAddress addr(&spwf, "st.com");   
-    pc.printf("\r\nst.com resolved to: %s\r\n", addr.get_ip_address());    
+    /* Get and print network connection parameters ip and mac adress */   
+    const char *ip = spwf.get_ip_address();
+    const char *mac = spwf.get_mac_address();    
 
-    pc.printf("\r\nconnecting to http://4.ifcfg.me\r\n");
+    pc.printf("IP address is: %s\r\n", ip ? ip : "No IP");
+    pc.printf("MAC address is: %s\r\n", mac ? mac : "No MAC");
     
-    TCPSocket socket(&spwf);
-    err = socket.connect("4.ifcfg.me", 23);
-    if(err!=0) 
+    /* ##################### UBIDOATS SEND DATA ######################### */
+
+    printf("Sending HTTP Data to Ubidots...\r\n");
+ 
+    /* Open a socket , create a TCP connection to Ubidots */
+    err = socket.connect(UBIDOTS_SERVER, UBIDOTS_PORT); 
+    if (err!=0) 
     {
       pc.printf("\r\nCould not connect to Socket, err = %d!!\r\n", err); 
       return -1;
-    } else pc.printf("\r\nconnected to host server\r\n"); 
+    } 
+    else 
+        pc.printf("\r\nconnected to host server\r\n"); 
+    
+    /* Construct content of HTTP command */
+    sprintf(message, "{\"temperature\": %0.2f, \"battery\": %0.2f, \"status\": %d}", temp, batt, (int)status);
+    printf("Content Length = %d\r\n", (int)strlen(message));
     
-    char buffer[100];
-    int count = 0;
-    pc.printf("\r\nReceiving Data\r\n"); 
-    count = socket.recv(buffer, sizeof buffer);
+    /* Construct HTTP command to send */
+    sprintf(sendBuffer, "POST /api/v1.6/devices/%s/?token=%s HTTP/1.1\r\nHost: things.ubidots.com\r\nContent-Type: application/json\r\nContent-Length: %d\r\n\r\n%s", UBIDOTS_DEVICE, UBIDOTS_TOKEN, (int)strlen(message),message); 
+    pc.printf("HTTP command %s\r\n", sendBuffer);
+    wait(2.0);
+     
+    /* Send http request to Ubidots */ 
+    int scount = socket.send(sendBuffer, (int)strlen(sendBuffer));
+    printf("sent %d [%.*s]\r\n", scount, strstr(sendBuffer, "\r\n") - sendBuffer, sendBuffer);
+
+    /* Receive a simple http response and print out the response line */
+    char respBuffer[64];
+    int rcount = socket.recv(respBuffer, sizeof respBuffer);
+    printf("recv %d [%.*s]\r\n", rcount, strstr(respBuffer, "\r\n") - respBuffer, respBuffer);
+
+    /* Close the socket to return its memory and bring down the network interface */
+    pc.printf("Close Socket\r\n");
+    socket.close();
     
-    if(count > 0)
+    /* Disconnect */
+    pc.printf("Disconnect Wifi\r\n");
+    spwf.disconnect();
+    wait(1.0);
+    pc.printf("Done\r\n");
+
+    myLed = 0;
+        
+    while(1) 
     {
-        buffer [count]='\0';
-        printf("%s\r\n", buffer);  
+        myLed = !myLed;
+        wait(1.0);
     }
-    else pc.printf("\r\nData not received\r\n");
-
-    pc.printf("\r\nClosing Socket\r\n");
-    socket.close();
-    pc.printf("\r\nUnsecure Socket Test complete.\r\n");
-    printf ("Socket closed\n\r");
-    spwf.disconnect();
-    printf ("WIFI disconnected, exiting ...\n\r");
-
-    while(1) { 
-      wait(1);
-      myled = !myled;
-    }
-}
+}
\ No newline at end of file