Imran Sheikh / Mbed 2 deprecated AirQuality_DHT11_Thingspeak_WiFi

Using the IDW01M1 board for the STM32 Nucleo F401RE board. This project reads data from Air quality MQ135 click and then read DHT11 values and publish on a private channel on the Thingspeak. A Good example of IoT project with the IDW01 board

Dependencies:   DHT11 NetworkSocketAPI X_NUCLEO_IDW01M1v2 mbed

Fork of AirQuality_Thingspeak by Imran Sheikh

This example project uses IDW01M1 WiFi Module to support IoT projects with example sensors such as Airquality Click MQ135 and DHT11 sensor. The sensor values are then published on the Thingspeak channel. The program uses the DHT11, NetworksocketApi and the SPW library fromX_Nucleo_IDW01M1_v2. This project can easily be adapted to add further sensors or use ESP8266 WiFi module as plenty of support is available on mbed.

main.cpp@2:3a87dbea07a7, 2016-09-07 (annotated)

Committer:
mridup
Date:
Wed Sep 07 07:17:38 2016 +0000
Revision:
2:3a87dbea07a7
Parent:
1:daf71fa3674c
Child:
4:40cb51547b9f
Changes to main to include comments on FRDM and LPCXpresso

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mridup 0:dee849b0e6e6 1 /* SpwfInterface NetworkSocketAPI Example Program
mridup 0:dee849b0e6e6 2 * Copyright (c) 2015 ARM Limited
mridup 0:dee849b0e6e6 3 *
mridup 0:dee849b0e6e6 4 * Licensed under the Apache License, Version 2.0 (the "License");
mridup 0:dee849b0e6e6 5 * you may not use this file except in compliance with the License.
mridup 0:dee849b0e6e6 6 * You may obtain a copy of the License at
mridup 0:dee849b0e6e6 7 *
mridup 0:dee849b0e6e6 8 * http://www.apache.org/licenses/LICENSE-2.0
mridup 0:dee849b0e6e6 9 *
mridup 0:dee849b0e6e6 10 * Unless required by applicable law or agreed to in writing, software
mridup 0:dee849b0e6e6 11 * distributed under the License is distributed on an "AS IS" BASIS,
mridup 0:dee849b0e6e6 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mridup 0:dee849b0e6e6 13 * See the License for the specific language governing permissions and
mridup 0:dee849b0e6e6 14 * limitations under the License.
mridup 0:dee849b0e6e6 15 */
mridup 0:dee849b0e6e6 16
mridup 0:dee849b0e6e6 17 #include "mbed.h"
mridup 0:dee849b0e6e6 18 #include "SpwfInterface.h"
mridup 0:dee849b0e6e6 19 #include "TCPSocket.h"
mridup 0:dee849b0e6e6 20
mridup 0:dee849b0e6e6 21 //------------------------------------
mridup 0:dee849b0e6e6 22 // Hyperterminal configuration
mridup 0:dee849b0e6e6 23 // 9600 bauds, 8-bit data, no parity
mridup 0:dee849b0e6e6 24 //------------------------------------
mridup 0:dee849b0e6e6 25
mridup 2:3a87dbea07a7 26 Serial pc(USBTX, USBRX);
mridup 0:dee849b0e6e6 27 DigitalOut myled(LED1);
mridup 1:daf71fa3674c 28
mridup 1:daf71fa3674c 29 /*************************************
mridup 1:daf71fa3674c 30 //FRDM-K64: D9->UART1_TX, D7->UART1_RX
mridup 1:daf71fa3674c 31 Pin connections:
mridup 1:daf71fa3674c 32 FRDM IDW01M1
mridup 1:daf71fa3674c 33 ------ ---------
mridup 1:daf71fa3674c 34 +3v3 <--> +3v3
mridup 1:daf71fa3674c 35 GND <--> GND
mridup 1:daf71fa3674c 36 D9 <--> D8
mridup 1:daf71fa3674c 37 D7 <--> D2
mridup 1:daf71fa3674c 38
mridup 1:daf71fa3674c 39 SpwfSAInterface spwf(D9, D7, false);
mridup 1:daf71fa3674c 40 *************************************/
mridup 2:3a87dbea07a7 41 /*************************************
mridup 2:3a87dbea07a7 42 //LPCXpresso11U68: D9->UART1_TX, D7->UART1_RX
mridup 2:3a87dbea07a7 43 Pin connections:
mridup 2:3a87dbea07a7 44 LPC IDW01M1
mridup 2:3a87dbea07a7 45 ------ ---------
mridup 2:3a87dbea07a7 46 +3v3 <--> +3v3
mridup 2:3a87dbea07a7 47 GND <--> GND
mridup 2:3a87dbea07a7 48 A1 <--> D8
mridup 2:3a87dbea07a7 49 A2 <--> D2
mridup 2:3a87dbea07a7 50
mridup 2:3a87dbea07a7 51 SpwfSAInterface spwf(A1, A2, false);
mridup 2:3a87dbea07a7 52 *************************************/
mridup 1:daf71fa3674c 53
mridup 1:daf71fa3674c 54 //NUCLEO: D8->UART1_TX (PA_9), D2->UART1_RX (PA_10)
mridup 1:daf71fa3674c 55 SpwfSAInterface spwf(D8, D2, false);
mridup 2:3a87dbea07a7 56
mridup 0:dee849b0e6e6 57 int main() {
mridup 0:dee849b0e6e6 58 int err;
mridup 0:dee849b0e6e6 59 char * ssid = "STM";
mridup 0:dee849b0e6e6 60 char * seckey = "STMdemoPWD";
mridup 0:dee849b0e6e6 61
mridup 0:dee849b0e6e6 62 pc.printf("\r\nX-NUCLEO-IDW01M1 mbed Application\r\n");
mridup 0:dee849b0e6e6 63 pc.printf("\r\nconnecting to AP\r\n");
mridup 0:dee849b0e6e6 64
mridup 0:dee849b0e6e6 65 if(spwf.connect(ssid, seckey, NSAPI_SECURITY_WPA2)) {
mridup 0:dee849b0e6e6 66 pc.printf("\r\nnow connected\r\n");
mridup 0:dee849b0e6e6 67 } else {
mridup 0:dee849b0e6e6 68 pc.printf("\r\nerror connecting to AP.\r\n");
mridup 0:dee849b0e6e6 69 return -1;
mridup 0:dee849b0e6e6 70 }
mridup 0:dee849b0e6e6 71
mridup 0:dee849b0e6e6 72 const char *ip = spwf.get_ip_address();
mridup 0:dee849b0e6e6 73 const char *mac = spwf.get_mac_address();
mridup 0:dee849b0e6e6 74
mridup 0:dee849b0e6e6 75 pc.printf("\r\nIP Address is: %s\r\n", (ip) ? ip : "No IP");
mridup 0:dee849b0e6e6 76 pc.printf("\r\nMAC Address is: %s\r\n", (mac) ? mac : "No MAC");
mridup 0:dee849b0e6e6 77
mridup 0:dee849b0e6e6 78 SocketAddress addr(&spwf, "st.com");
mridup 0:dee849b0e6e6 79 pc.printf("\r\nst.com resolved to: %s\r\n", addr.get_ip_address());
mridup 0:dee849b0e6e6 80
mridup 0:dee849b0e6e6 81 pc.printf("\r\nconnecting to http://time-d.nist.gov\r\n");
mridup 0:dee849b0e6e6 82
mridup 0:dee849b0e6e6 83 TCPSocket socket(&spwf);
mridup 2:3a87dbea07a7 84 err = socket.connect("4.ifcfg.me", 23);
mridup 0:dee849b0e6e6 85 if(err!=0)
mridup 0:dee849b0e6e6 86 {
mridup 0:dee849b0e6e6 87 pc.printf("\r\nCould not connect to Socket, err = %d!!\r\n", err);
mridup 0:dee849b0e6e6 88 return -1;
mridup 0:dee849b0e6e6 89 } else pc.printf("\r\nconnected to host server\r\n");
mridup 0:dee849b0e6e6 90
mridup 0:dee849b0e6e6 91 char buffer[64];
mridup 0:dee849b0e6e6 92 int count = 0;
mridup 0:dee849b0e6e6 93 pc.printf("\r\nReceiving Data\r\n");
mridup 0:dee849b0e6e6 94 count = socket.recv(buffer, sizeof buffer);
mridup 0:dee849b0e6e6 95
mridup 0:dee849b0e6e6 96 if(count > 0)
mridup 0:dee849b0e6e6 97 {
mridup 0:dee849b0e6e6 98 printf("public IP address is: %s\r\n", &buffer[15]);
mridup 0:dee849b0e6e6 99 }
mridup 0:dee849b0e6e6 100 else pc.printf("\r\nData not received\r\n");
mridup 0:dee849b0e6e6 101
mridup 2:3a87dbea07a7 102 pc.printf("\r\nClosing Socket\r\n");
mridup 2:3a87dbea07a7 103 socket.close();
mridup 0:dee849b0e6e6 104
mridup 2:3a87dbea07a7 105 pc.printf("\r\ndisconnecting....\r\n");
mridup 2:3a87dbea07a7 106 spwf.disconnect();
mridup 2:3a87dbea07a7 107 pc.printf("\r\nTest complete.\r\n");
mridup 0:dee849b0e6e6 108
mridup 0:dee849b0e6e6 109 while(1) {
mridup 0:dee849b0e6e6 110 wait(1);
mridup 0:dee849b0e6e6 111 myled = !myled;
mridup 0:dee849b0e6e6 112 }
mridup 0:dee849b0e6e6 113 }