Peng Jing Xuan / Mbed OS mbed_wifi_MQTT_PM25

mbed_wifi_MQTT_PM25

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

main.cpp@55:23a0d1e8270a, 2018-02-15 (annotated)

Committer:
adustm adustm@gmail.com
Date:
Thu Feb 15 10:34:31 2018 +0100
Revision:
55:23a0d1e8270a
Parent:
44:63be19b7a3db
Child:
57:c8c960b825f0
Update main.cpp / mbed_app.json and Readme for DISCO_L475VG_IOT01A wifi module

Add mbed_app_ism43362.json + wifi-ism43362.lib

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 44:63be19b7a3db 21 #define WIFI_IDW0XX1 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
adustm adustm@gmail.com 55:23a0d1e8270a 31 #elif TARGET_DISCO_L475VG_IOT01A
adustm adustm@gmail.com 55:23a0d1e8270a 32 #include "ISM43362Interface.h"
adustm adustm@gmail.com 55:23a0d1e8270a 33 ISM43362Interface wifi(MBED_CONF_APP_WIFI_SPI_MOSI, MBED_CONF_APP_WIFI_SPI_MISO, MBED_CONF_APP_WIFI_SPI_SCLK, MBED_CONF_APP_WIFI_SPI_NSS, MBED_CONF_APP_WIFI_RESET, MBED_CONF_APP_WIFI_DATAREADY, MBED_CONF_APP_WIFI_WAKEUP, false);
adustm adustm@gmail.com 55:23a0d1e8270a 34
mbed_official 33:12f0df4d51d7 35 #else // External WiFi modules
mbed_official 21:b2f2f6a840b4 36
mbed_official 32:bca3f5f442b3 37 #if MBED_CONF_APP_WIFI_SHIELD == WIFI_ESP8266
mbed_official 1:aea78e21a7da 38 #include "ESP8266Interface.h"
mbed_official 10:5b5beb106156 39 ESP8266Interface wifi(MBED_CONF_APP_WIFI_TX, MBED_CONF_APP_WIFI_RX);
mbed_official 44:63be19b7a3db 40 #elif MBED_CONF_APP_WIFI_SHIELD == WIFI_IDW0XX1
mbed_official 32:bca3f5f442b3 41 #include "SpwfSAInterface.h"
mbed_official 32:bca3f5f442b3 42 SpwfSAInterface wifi(MBED_CONF_APP_WIFI_TX, MBED_CONF_APP_WIFI_RX);
mbed_official 44:63be19b7a3db 43 #endif // MBED_CONF_APP_WIFI_SHIELD == WIFI_IDW0XX1
mbed_official 10:5b5beb106156 44
mbed_official 33:12f0df4d51d7 45 #endif
mbed_official 0:857719181846 46
mbed_official 0:857719181846 47 const char *sec2str(nsapi_security_t sec)
mbed_official 0:857719181846 48 {
mbed_official 0:857719181846 49 switch (sec) {
mbed_official 0:857719181846 50 case NSAPI_SECURITY_NONE:
mbed_official 0:857719181846 51 return "None";
mbed_official 0:857719181846 52 case NSAPI_SECURITY_WEP:
mbed_official 0:857719181846 53 return "WEP";
mbed_official 0:857719181846 54 case NSAPI_SECURITY_WPA:
mbed_official 0:857719181846 55 return "WPA";
mbed_official 0:857719181846 56 case NSAPI_SECURITY_WPA2:
mbed_official 0:857719181846 57 return "WPA2";
mbed_official 0:857719181846 58 case NSAPI_SECURITY_WPA_WPA2:
mbed_official 0:857719181846 59 return "WPA/WPA2";
mbed_official 0:857719181846 60 case NSAPI_SECURITY_UNKNOWN:
mbed_official 0:857719181846 61 default:
mbed_official 0:857719181846 62 return "Unknown";
mbed_official 0:857719181846 63 }
mbed_official 0:857719181846 64 }
mbed_official 0:857719181846 65
mbed_official 37:3a31525e2971 66 int scan_demo(WiFiInterface *wifi)
mbed_official 0:857719181846 67 {
mbed_official 0:857719181846 68 WiFiAccessPoint *ap;
mbed_official 0:857719181846 69
mbed_official 35:052c1ba06ce7 70 printf("Scan:\n");
mbed_official 0:857719181846 71
mbed_official 0:857719181846 72 int count = wifi->scan(NULL,0);
adustm adustm@gmail.com 55:23a0d1e8270a 73 printf("%d networks available.\n", count);
mbed_official 0:857719181846 74
mbed_official 0:857719181846 75 /* Limit number of network arbitrary to 15 */
mbed_official 0:857719181846 76 count = count < 15 ? count : 15;
mbed_official 0:857719181846 77
mbed_official 0:857719181846 78 ap = new WiFiAccessPoint[count];
mbed_official 0:857719181846 79 count = wifi->scan(ap, count);
mbed_official 0:857719181846 80 for (int i = 0; i < count; i++)
mbed_official 0:857719181846 81 {
mbed_official 35:052c1ba06ce7 82 printf("Network: %s secured: %s BSSID: %hhX:%hhX:%hhX:%hhx:%hhx:%hhx RSSI: %hhd Ch: %hhd\n", ap[i].get_ssid(),
mbed_official 0:857719181846 83 sec2str(ap[i].get_security()), ap[i].get_bssid()[0], ap[i].get_bssid()[1], ap[i].get_bssid()[2],
mbed_official 0:857719181846 84 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 85 }
mbed_official 0:857719181846 86
mbed_official 0:857719181846 87 delete[] ap;
mbed_official 37:3a31525e2971 88 return count;
mbed_official 0:857719181846 89 }
mbed_official 0:857719181846 90
mbed_official 0:857719181846 91 void http_demo(NetworkInterface *net)
mbed_official 0:857719181846 92 {
mbed_official 0:857719181846 93 TCPSocket socket;
mbed_official 24:323569a565ec 94 nsapi_error_t response;
mbed_official 0:857719181846 95
mbed_official 35:052c1ba06ce7 96 printf("Sending HTTP request to www.arm.com...\n");
mbed_official 0:857719181846 97
mbed_official 0:857719181846 98 // Open a socket on the network interface, and create a TCP connection to www.arm.com
mbed_official 0:857719181846 99 socket.open(net);
mbed_official 24:323569a565ec 100 response = socket.connect("www.arm.com", 80);
mbed_official 24:323569a565ec 101 if(0 != response) {
mbed_official 35:052c1ba06ce7 102 printf("Error connecting: %d\n", response);
mbed_official 24:323569a565ec 103 socket.close();
mbed_official 24:323569a565ec 104 return;
mbed_official 24:323569a565ec 105 }
mbed_official 0:857719181846 106
mbed_official 0:857719181846 107 // Send a simple http request
mbed_official 0:857719181846 108 char sbuffer[] = "GET / HTTP/1.1\r\nHost: www.arm.com\r\n\r\n";
mbed_official 33:12f0df4d51d7 109 nsapi_size_t size = strlen(sbuffer);
mbed_official 24:323569a565ec 110 response = 0;
mbed_official 24:323569a565ec 111 while(size)
mbed_official 24:323569a565ec 112 {
mbed_official 24:323569a565ec 113 response = socket.send(sbuffer+response, size);
mbed_official 24:323569a565ec 114 if (response < 0) {
mbed_official 35:052c1ba06ce7 115 printf("Error sending data: %d\n", response);
mbed_official 24:323569a565ec 116 socket.close();
mbed_official 24:323569a565ec 117 return;
mbed_official 24:323569a565ec 118 } else {
mbed_official 24:323569a565ec 119 size -= response;
mbed_official 24:323569a565ec 120 // Check if entire message was sent or not
mbed_official 35:052c1ba06ce7 121 printf("sent %d [%.*s]\n", response, strstr(sbuffer, "\r\n")-sbuffer, sbuffer);
mbed_official 24:323569a565ec 122 }
mbed_official 24:323569a565ec 123 }
mbed_official 0:857719181846 124
mbed_official 0:857719181846 125 // Recieve a simple http response and print out the response line
mbed_official 0:857719181846 126 char rbuffer[64];
mbed_official 24:323569a565ec 127 response = socket.recv(rbuffer, sizeof rbuffer);
mbed_official 24:323569a565ec 128 if (response < 0) {
mbed_official 35:052c1ba06ce7 129 printf("Error receiving data: %d\n", response);
mbed_official 24:323569a565ec 130 } else {
mbed_official 35:052c1ba06ce7 131 printf("recv %d [%.*s]\n", response, strstr(rbuffer, "\r\n")-rbuffer, rbuffer);
mbed_official 24:323569a565ec 132 }
mbed_official 0:857719181846 133
mbed_official 0:857719181846 134 // Close the socket to return its memory and bring down the network interface
mbed_official 0:857719181846 135 socket.close();
mbed_official 0:857719181846 136 }
mbed_official 0:857719181846 137
mbed_official 0:857719181846 138 int main()
mbed_official 0:857719181846 139 {
mbed_official 37:3a31525e2971 140 int count = 0;
mbed_official 37:3a31525e2971 141
mbed_official 35:052c1ba06ce7 142 printf("WiFi example\n\n");
mbed_official 0:857719181846 143
mbed_official 37:3a31525e2971 144 count = scan_demo(&wifi);
mbed_official 37:3a31525e2971 145 if (count == 0) {
mbed_official 37:3a31525e2971 146 printf("No WIFI APNs found - can't continue further.\n");
mbed_official 37:3a31525e2971 147 return -1;
mbed_official 37:3a31525e2971 148 }
mbed_official 0:857719181846 149
mbed_official 37:3a31525e2971 150 printf("\nConnecting to %s...\n", MBED_CONF_APP_WIFI_SSID);
mbed_official 0:857719181846 151 int ret = wifi.connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
mbed_official 0:857719181846 152 if (ret != 0) {
mbed_official 35:052c1ba06ce7 153 printf("\nConnection error\n");
mbed_official 0:857719181846 154 return -1;
mbed_official 0:857719181846 155 }
mbed_official 0:857719181846 156
mbed_official 35:052c1ba06ce7 157 printf("Success\n\n");
mbed_official 35:052c1ba06ce7 158 printf("MAC: %s\n", wifi.get_mac_address());
mbed_official 35:052c1ba06ce7 159 printf("IP: %s\n", wifi.get_ip_address());
mbed_official 35:052c1ba06ce7 160 printf("Netmask: %s\n", wifi.get_netmask());
mbed_official 35:052c1ba06ce7 161 printf("Gateway: %s\n", wifi.get_gateway());
mbed_official 35:052c1ba06ce7 162 printf("RSSI: %d\n\n", wifi.get_rssi());
mbed_official 0:857719181846 163
mbed_official 0:857719181846 164 http_demo(&wifi);
mbed_official 0:857719181846 165
mbed_official 0:857719181846 166 wifi.disconnect();
mbed_official 0:857719181846 167
mbed_official 35:052c1ba06ce7 168 printf("\nDone\n");
mbed_official 0:857719181846 169 }