rom r / Mbed 2 deprecated Ubidots_test

An example program using NucleoL476RG with X-Nucleo-IDW01M1 wifi shield to sends analog data to Ubidots IoT Provider

Dependencies:   NetworkSocketAPI X_NUCLEO_IDW01M1v2 mbed

Fork of TLS_HelloWorld_IDW01M1 by ST

Complete tutorial at https://www.hackster.io/rreicher/nucleol476rg-to-ubidots-00d173

main.cpp@13:12401835892c, 2017-10-06 (annotated)

Committer:
rrom
Date:
Fri Oct 06 13:03:51 2017 +0000
Revision:
13:12401835892c
Parent:
12:7b6b23225fd0 
Nucleo with IDW01M1 wifi shield used to send analog data to Ubidots. Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rrom 13:12401835892c 1 /*
rrom 13:12401835892c 2 Copyright (C) 2017 romain reicher
mridup 0:dee849b0e6e6 3
rrom 13:12401835892c 4 This program is free software: you can redistribute it and/or modify
rrom 13:12401835892c 5 it under the terms of the GNU General Public License as published by
rrom 13:12401835892c 6 the Free Software Foundation, either version 3 of the License, or
rrom 13:12401835892c 7 (at your option) any later version.
rrom 13:12401835892c 8
rrom 13:12401835892c 9 This program is distributed in the hope that it will be useful,
rrom 13:12401835892c 10 but WITHOUT ANY WARRANTY; without even the implied warranty of
rrom 13:12401835892c 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
rrom 13:12401835892c 12 GNU General Public License for more details.
mridup 0:dee849b0e6e6 13
rrom 13:12401835892c 14 You should have received a copy of the GNU General Public License
rrom 13:12401835892c 15 along with this program. If not, see <http://www.gnu.org/licenses/>.
rrom 13:12401835892c 16
rrom 13:12401835892c 17 About
rrom 13:12401835892c 18 ---------------------------------------------------------------------
rrom 13:12401835892c 19
rrom 13:12401835892c 20 Send sensors value to Ubidots.
rrom 13:12401835892c 21 This example sends 3 variables to Ubidots.
rrom 13:12401835892c 22 - STM32L476 VBAT/3 internal channel in mV
rrom 13:12401835892c 23 - STM32L476 Internal Temperature Sensor in C
rrom 13:12401835892c 24 - The status of onboard User Button (blue) on NucleoL476RG
rrom 13:12401835892c 25 Use NucleoL476RG with X-Nucleo-IDW01M1v2 wifi shield
rrom 13:12401835892c 26
rrom 13:12401835892c 27 Important note: Some IDW01M1 wifi shield had resistor R21 mounted
rrom 13:12401835892c 28 which interfere with STLink/SWD programmer.
rrom 13:12401835892c 29 Please unmount R21 to fix it.
rrom 13:12401835892c 30
rrom 13:12401835892c 31 romain reicher
rrom 13:12401835892c 32 Date : 20/09/2017
rrom 13:12401835892c 33 Revision : v0.1
rrom 13:12401835892c 34 */
mapellil 8:74b827befe72 35
mapellil 10:cc61a766cd1f 36
rrom 13:12401835892c 37 #include "mbed.h"
rrom 13:12401835892c 38 #include "SpwfInterface.h"
rrom 13:12401835892c 39 #include "TCPSocket.h"
mridup 0:dee849b0e6e6 40
rrom 13:12401835892c 41 /* Wifi Acces Point Settings */
rrom 13:12401835892c 42 #define AP_SSID "YOUR_WIFI_SSID"
rrom 13:12401835892c 43 #define AP_PASSWORD "YOUR_WIFI_PASSWORD"
rrom 13:12401835892c 44 #define UBIDOTS_SERVER "things.ubidots.com"
rrom 13:12401835892c 45 #define UBIDOTS_PORT 80
rrom 13:12401835892c 46 #define UBIDOTS_TOKEN "YOUR_UBIDOTS_TOKEN"
rrom 13:12401835892c 47 #define UBIDOTS_DEVICE "YOUR_UBIDOTS_LABEL_DEVICE"
mridup 1:daf71fa3674c 48
rrom 13:12401835892c 49 /* Communication ressources */
rrom 13:12401835892c 50 SpwfSAInterface spwf(D8, D2, false);
rrom 13:12401835892c 51 Serial pc(USBTX, USBRX);
rrom 13:12401835892c 52
rrom 13:12401835892c 53 /* Digital ressources */
rrom 13:12401835892c 54 DigitalOut myLed(LED1);
rrom 13:12401835892c 55 DigitalIn myButton(USER_BUTTON);
rrom 13:12401835892c 56
rrom 13:12401835892c 57 /* Analog ressources */
rrom 13:12401835892c 58 AnalogIn adc_vbat(ADC_VBAT); // VBAT / 3 internal to ADC channel
rrom 13:12401835892c 59 AnalogIn adc_temp(ADC_TEMP); // Internal Temp Sensor to ADC Channel
rrom 13:12401835892c 60
rrom 13:12401835892c 61 /* Global variables */
rrom 13:12401835892c 62 float temp = adc_temp.read() * 100; // Converted in C
rrom 13:12401835892c 63 float batt = adc_vbat.read() * 30000; // Converted in mV
rrom 13:12401835892c 64 bool level = false;
mridup 1:daf71fa3674c 65
rrom 13:12401835892c 66 /**
rrom 13:12401835892c 67 * @brief Main program
rrom 13:12401835892c 68 * @param None
rrom 13:12401835892c 69 * @retval None
rrom 13:12401835892c 70 */
rrom 13:12401835892c 71 int main()
rrom 13:12401835892c 72 {
rrom 13:12401835892c 73 /* Configure Serial baud rate */
rrom 13:12401835892c 74 pc.baud(115200);
rrom 13:12401835892c 75
rrom 13:12401835892c 76 /* Update level variable state depending USER_BUTTON state */
rrom 13:12401835892c 77 if (myButton == 0)
rrom 13:12401835892c 78 level = true;
rrom 13:12401835892c 79 else
rrom 13:12401835892c 80 level = false;
rrom 13:12401835892c 81
rrom 13:12401835892c 82 TCPSocket socket(&spwf);
rrom 13:12401835892c 83 char sendBuffer[256];
rrom 13:12401835892c 84 char message[64];
rrom 13:12401835892c 85 int err;
rrom 13:12401835892c 86
rrom 13:12401835892c 87 /* ######################## WIFI CONNECTION ######################## */
mridup 1:daf71fa3674c 88
rrom 13:12401835892c 89 pc.printf("IDW01M1 NetworkSocketAPI TCP Client Ubidots\r\n");
rrom 13:12401835892c 90 pc.printf("Connecting to AP\r\n");
rrom 13:12401835892c 91
rrom 13:12401835892c 92 //* Connect to wifi acces point */
rrom 13:12401835892c 93 if(spwf.connect(AP_SSID, AP_PASSWORD, NSAPI_SECURITY_WPA2))
rrom 13:12401835892c 94 {
rrom 13:12401835892c 95 pc.printf("Now connected\r\n");
rrom 13:12401835892c 96 }
rrom 13:12401835892c 97 else
rrom 13:12401835892c 98 {
rrom 13:12401835892c 99 pc.printf("Error connecting to AP.\r\n");
mridup 0:dee849b0e6e6 100 return -1;
mridup 0:dee849b0e6e6 101 }
rrom 13:12401835892c 102
rrom 13:12401835892c 103 /* #################### GET CONNECTION INFOS ######################## */
rrom 13:12401835892c 104
rrom 13:12401835892c 105 /* Get and print network connection parameters ip and mac adress */
rrom 13:12401835892c 106 const char *ip = spwf.get_ip_address();
rrom 13:12401835892c 107 const char *mac = spwf.get_mac_address();
mapellil 8:74b827befe72 108
rrom 13:12401835892c 109 pc.printf("IP address is: %s\r\n", ip ? ip : "No IP");
rrom 13:12401835892c 110 pc.printf("MAC address is: %s\r\n", mac ? mac : "No MAC");
rrom 13:12401835892c 111
rrom 13:12401835892c 112 /* ##################### UBIDOATS SEND DATA ######################### */
rrom 13:12401835892c 113
rrom 13:12401835892c 114 printf("Sending HTTP Data to Ubidots...\r\n");
rrom 13:12401835892c 115
rrom 13:12401835892c 116 /* Open a socket , create a TCP connection to Ubidots */
rrom 13:12401835892c 117 err = socket.connect(UBIDOTS_SERVER, UBIDOTS_PORT);
rrom 13:12401835892c 118 if (err!=0)
rrom 13:12401835892c 119 {
rrom 13:12401835892c 120 pc.printf("\r\nCould not connect to Socket, err = %d!!\r\n", err);
rrom 13:12401835892c 121 return -1;
rrom 13:12401835892c 122 }
rrom 13:12401835892c 123 else
rrom 13:12401835892c 124 pc.printf("\r\nconnected to host server\r\n");
rrom 13:12401835892c 125
rrom 13:12401835892c 126 /* Construct content of HTTP command */
rrom 13:12401835892c 127 sprintf(message, "{\"temperature\": %0.2f, \"battery\": %0.2f, \"level\": %d}", temp, batt, (int)level);
rrom 13:12401835892c 128 printf("Content Length = %d\r\n", (int)strlen(message));
rrom 13:12401835892c 129
rrom 13:12401835892c 130 /* Construct HTTP command to send */
rrom 13:12401835892c 131 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);
rrom 13:12401835892c 132 pc.printf("HTTP command %s\r\n", sendBuffer);
rrom 13:12401835892c 133 wait(2.0);
rrom 13:12401835892c 134
rrom 13:12401835892c 135 /* Send http request to Ubidots */
rrom 13:12401835892c 136 int scount = socket.send(sendBuffer, (int)strlen(sendBuffer));
rrom 13:12401835892c 137 printf("sent %d [%.*s]\r\n", scount, strstr(sendBuffer, "\r\n") - sendBuffer, sendBuffer);
rrom 13:12401835892c 138
rrom 13:12401835892c 139 /* Receive a simple http response and print out the response line */
rrom 13:12401835892c 140 char respBuffer[64];
rrom 13:12401835892c 141 int rcount = socket.recv(respBuffer, sizeof respBuffer);
rrom 13:12401835892c 142 printf("recv %d [%.*s]\r\n", rcount, strstr(respBuffer, "\r\n") - respBuffer, respBuffer);
rrom 13:12401835892c 143
rrom 13:12401835892c 144 /* Close the socket to return its memory and bring down the network interface */
rrom 13:12401835892c 145 pc.printf("Close Socket\r\n");
rrom 13:12401835892c 146 socket.close();
rrom 13:12401835892c 147
rrom 13:12401835892c 148 /* Disconnect */
rrom 13:12401835892c 149 pc.printf("Disconnect Wifi\r\n");
mridup 2:3a87dbea07a7 150 spwf.disconnect();
rrom 13:12401835892c 151 wait(1.0);
rrom 13:12401835892c 152 pc.printf("Done\r\n");
mapellil 8:74b827befe72 153
rrom 13:12401835892c 154 myLed = 0;
rrom 13:12401835892c 155
rrom 13:12401835892c 156 while(1)
rrom 13:12401835892c 157 {
rrom 13:12401835892c 158 myLed = !myLed;
rrom 13:12401835892c 159 wait(1.0);
mridup 0:dee849b0e6e6 160 }
mridup 0:dee849b0e6e6 161 }