Peng Jing Xuan / Mbed OS mbed_wifi_MQTT_PM25

mbed_wifi_MQTT_PM25

Dependencies:   mbed-os-example-wifi-DISCO_IOTBOARD_MQTT MQTT

main.cpp@32:bca3f5f442b3, 2017-09-08 (annotated)

Committer:
mbed_official
Date:
Fri Sep 08 10:15:04 2017 +0100
Revision:
32:bca3f5f442b3
Parent:
24:323569a565ec
Child:
33:12f0df4d51d7
Add compiler check for Morpho form factor



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Commit copied from https://github.com/ARMmbed/mbed-os-example-wifi

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:857719181846 1 /* WiFi Example
mbed_official 0:857719181846 2 * Copyright (c) 2016 ARM Limited
mbed_official 0:857719181846 3 *
mbed_official 0:857719181846 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 0:857719181846 5 * you may not use this file except in compliance with the License.
mbed_official 0:857719181846 6 * You may obtain a copy of the License at
mbed_official 0:857719181846 7 *
mbed_official 0:857719181846 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 0:857719181846 9 *
mbed_official 0:857719181846 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 0:857719181846 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 0:857719181846 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 0:857719181846 13 * See the License for the specific language governing permissions and
mbed_official 0:857719181846 14 * limitations under the License.
mbed_official 0:857719181846 15 */
mbed_official 0:857719181846 16
mbed_official 0:857719181846 17 #include "mbed.h"
mbed_official 0:857719181846 18 #include "TCPSocket.h"
mbed_official 0:857719181846 19
mbed_official 32:bca3f5f442b3 20 #define WIFI_ESP8266 1
mbed_official 32:bca3f5f442b3 21 #define WIFI_IDW01M1 2
mbed_official 32:bca3f5f442b3 22
mbed_official 0:857719181846 23 #if TARGET_UBLOX_EVK_ODIN_W2
mbed_official 1:aea78e21a7da 24 #include "OdinWiFiInterface.h"
mbed_official 1:aea78e21a7da 25 OdinWiFiInterface wifi;
mbed_official 10:5b5beb106156 26
mbed_official 21:b2f2f6a840b4 27 #elif TARGET_REALTEK_RTL8195AM
mbed_official 21:b2f2f6a840b4 28 #include "RTWInterface.h"
mbed_official 21:b2f2f6a840b4 29 RTWInterface wifi;
mbed_official 21:b2f2f6a840b4 30
mbed_official 0:857719181846 31 #else
mbed_official 32:bca3f5f442b3 32 #if MBED_CONF_APP_WIFI_SHIELD == WIFI_ESP8266
mbed_official 32:bca3f5f442b3 33 #if !TARGET_FF_MORPHO
mbed_official 32:bca3f5f442b3 34 #error [NOT_SUPPORTED] Only Morpho form factor devices are supported for this shield at this time
mbed_official 32:bca3f5f442b3 35 #endif // !TARGET_FF_MORPHO
mbed_official 32:bca3f5f442b3 36 #else
mbed_official 1:aea78e21a7da 37 #if !TARGET_FF_ARDUINO
mbed_official 32:bca3f5f442b3 38 #error [NOT_SUPPORTED] Only Arduino form factor devices are supported for this shield at this time
mbed_official 32:bca3f5f442b3 39 #endif // !TARGET_FF_ARDUINO
mbed_official 32:bca3f5f442b3 40 #endif // MBED_CONF_APP_WIFI_SHIELD != WIFI_ESP8266
mbed_official 21:b2f2f6a840b4 41
mbed_official 32:bca3f5f442b3 42 #if MBED_CONF_APP_WIFI_SHIELD == WIFI_ESP8266
mbed_official 1:aea78e21a7da 43 #include "ESP8266Interface.h"
mbed_official 10:5b5beb106156 44 ESP8266Interface wifi(MBED_CONF_APP_WIFI_TX, MBED_CONF_APP_WIFI_RX);
mbed_official 32:bca3f5f442b3 45 #elif MBED_CONF_APP_WIFI_SHIELD == WIFI_IDW01M1
mbed_official 32:bca3f5f442b3 46 #include "SpwfSAInterface.h"
mbed_official 32:bca3f5f442b3 47 SpwfSAInterface wifi(MBED_CONF_APP_WIFI_TX, MBED_CONF_APP_WIFI_RX);
mbed_official 32:bca3f5f442b3 48 #endif // MBED_CONF_APP_WIFI_SHIELD == WIFI_IDW01M1
mbed_official 10:5b5beb106156 49
mbed_official 32:bca3f5f442b3 50 #endif // TARGET_UBLOX_EVK_ODIN_W2
mbed_official 0:857719181846 51
mbed_official 0:857719181846 52 const char *sec2str(nsapi_security_t sec)
mbed_official 0:857719181846 53 {
mbed_official 0:857719181846 54 switch (sec) {
mbed_official 0:857719181846 55 case NSAPI_SECURITY_NONE:
mbed_official 0:857719181846 56 return "None";
mbed_official 0:857719181846 57 case NSAPI_SECURITY_WEP:
mbed_official 0:857719181846 58 return "WEP";
mbed_official 0:857719181846 59 case NSAPI_SECURITY_WPA:
mbed_official 0:857719181846 60 return "WPA";
mbed_official 0:857719181846 61 case NSAPI_SECURITY_WPA2:
mbed_official 0:857719181846 62 return "WPA2";
mbed_official 0:857719181846 63 case NSAPI_SECURITY_WPA_WPA2:
mbed_official 0:857719181846 64 return "WPA/WPA2";
mbed_official 0:857719181846 65 case NSAPI_SECURITY_UNKNOWN:
mbed_official 0:857719181846 66 default:
mbed_official 0:857719181846 67 return "Unknown";
mbed_official 0:857719181846 68 }
mbed_official 0:857719181846 69 }
mbed_official 0:857719181846 70
mbed_official 0:857719181846 71 void scan_demo(WiFiInterface *wifi)
mbed_official 0:857719181846 72 {
mbed_official 0:857719181846 73 WiFiAccessPoint *ap;
mbed_official 0:857719181846 74
mbed_official 0:857719181846 75 printf("Scan:\r\n");
mbed_official 0:857719181846 76
mbed_official 0:857719181846 77 int count = wifi->scan(NULL,0);
mbed_official 0:857719181846 78
mbed_official 0:857719181846 79 /* Limit number of network arbitrary to 15 */
mbed_official 0:857719181846 80 count = count < 15 ? count : 15;
mbed_official 0:857719181846 81
mbed_official 0:857719181846 82 ap = new WiFiAccessPoint[count];
mbed_official 0:857719181846 83 count = wifi->scan(ap, count);
mbed_official 0:857719181846 84 for (int i = 0; i < count; i++)
mbed_official 0:857719181846 85 {
mbed_official 0:857719181846 86 printf("Network: %s secured: %s BSSID: %hhX:%hhX:%hhX:%hhx:%hhx:%hhx RSSI: %hhd Ch: %hhd\r\n", ap[i].get_ssid(),
mbed_official 0:857719181846 87 sec2str(ap[i].get_security()), ap[i].get_bssid()[0], ap[i].get_bssid()[1], ap[i].get_bssid()[2],
mbed_official 0:857719181846 88 ap[i].get_bssid()[3], ap[i].get_bssid()[4], ap[i].get_bssid()[5], ap[i].get_rssi(), ap[i].get_channel());
mbed_official 0:857719181846 89 }
mbed_official 0:857719181846 90 printf("%d networks available.\r\n", count);
mbed_official 0:857719181846 91
mbed_official 0:857719181846 92 delete[] ap;
mbed_official 0:857719181846 93 }
mbed_official 0:857719181846 94
mbed_official 0:857719181846 95 void http_demo(NetworkInterface *net)
mbed_official 0:857719181846 96 {
mbed_official 0:857719181846 97 TCPSocket socket;
mbed_official 24:323569a565ec 98 nsapi_error_t response;
mbed_official 0:857719181846 99
mbed_official 0:857719181846 100 printf("Sending HTTP request to www.arm.com...\r\n");
mbed_official 0:857719181846 101
mbed_official 0:857719181846 102 // Open a socket on the network interface, and create a TCP connection to www.arm.com
mbed_official 0:857719181846 103 socket.open(net);
mbed_official 24:323569a565ec 104 response = socket.connect("www.arm.com", 80);
mbed_official 24:323569a565ec 105 if(0 != response) {
mbed_official 24:323569a565ec 106 printf("Error connecting: %d\r\n", response);
mbed_official 24:323569a565ec 107 socket.close();
mbed_official 24:323569a565ec 108 return;
mbed_official 24:323569a565ec 109 }
mbed_official 0:857719181846 110
mbed_official 0:857719181846 111 // Send a simple http request
mbed_official 0:857719181846 112 char sbuffer[] = "GET / HTTP/1.1\r\nHost: www.arm.com\r\n\r\n";
mbed_official 24:323569a565ec 113 nsapi_size_t size = sizeof sbuffer;
mbed_official 24:323569a565ec 114 response = 0;
mbed_official 24:323569a565ec 115 while(size)
mbed_official 24:323569a565ec 116 {
mbed_official 24:323569a565ec 117 response = socket.send(sbuffer+response, size);
mbed_official 24:323569a565ec 118 if (response < 0) {
mbed_official 24:323569a565ec 119 printf("Error sending data: %d\r\n", response);
mbed_official 24:323569a565ec 120 socket.close();
mbed_official 24:323569a565ec 121 return;
mbed_official 24:323569a565ec 122 } else {
mbed_official 24:323569a565ec 123 size -= response;
mbed_official 24:323569a565ec 124 // Check if entire message was sent or not
mbed_official 24:323569a565ec 125 printf("sent %d [%.*s]\r\n", response, strstr(sbuffer, "\r\n")-sbuffer, sbuffer);
mbed_official 24:323569a565ec 126 }
mbed_official 24:323569a565ec 127 }
mbed_official 0:857719181846 128
mbed_official 0:857719181846 129 // Recieve a simple http response and print out the response line
mbed_official 0:857719181846 130 char rbuffer[64];
mbed_official 24:323569a565ec 131 response = socket.recv(rbuffer, sizeof rbuffer);
mbed_official 24:323569a565ec 132 if (response < 0) {
mbed_official 24:323569a565ec 133 printf("Error receiving data: %d\r\n", response);
mbed_official 24:323569a565ec 134 } else {
mbed_official 24:323569a565ec 135 printf("recv %d [%.*s]\r\n", response, strstr(rbuffer, "\r\n")-rbuffer, rbuffer);
mbed_official 24:323569a565ec 136 }
mbed_official 0:857719181846 137
mbed_official 0:857719181846 138 // Close the socket to return its memory and bring down the network interface
mbed_official 0:857719181846 139 socket.close();
mbed_official 0:857719181846 140 }
mbed_official 0:857719181846 141
mbed_official 0:857719181846 142 int main()
mbed_official 0:857719181846 143 {
mbed_official 0:857719181846 144 printf("WiFi example\r\n\r\n");
mbed_official 0:857719181846 145
mbed_official 0:857719181846 146 scan_demo(&wifi);
mbed_official 0:857719181846 147
mbed_official 0:857719181846 148 printf("\r\nConnecting...\r\n");
mbed_official 0:857719181846 149 int ret = wifi.connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
mbed_official 0:857719181846 150 if (ret != 0) {
mbed_official 0:857719181846 151 printf("\r\nConnection error\r\n");
mbed_official 0:857719181846 152 return -1;
mbed_official 0:857719181846 153 }
mbed_official 0:857719181846 154
mbed_official 0:857719181846 155 printf("Success\r\n\r\n");
mbed_official 0:857719181846 156 printf("MAC: %s\r\n", wifi.get_mac_address());
mbed_official 0:857719181846 157 printf("IP: %s\r\n", wifi.get_ip_address());
mbed_official 0:857719181846 158 printf("Netmask: %s\r\n", wifi.get_netmask());
mbed_official 0:857719181846 159 printf("Gateway: %s\r\n", wifi.get_gateway());
mbed_official 0:857719181846 160 printf("RSSI: %d\r\n\r\n", wifi.get_rssi());
mbed_official 0:857719181846 161
mbed_official 0:857719181846 162 http_demo(&wifi);
mbed_official 0:857719181846 163
mbed_official 0:857719181846 164 wifi.disconnect();
mbed_official 0:857719181846 165
mbed_official 0:857719181846 166 printf("\r\nDone\r\n");
mbed_official 0:857719181846 167 }