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mbed-os-example-wifi-custom
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main.cpp
00001 /* WiFi Example 00002 * Copyright (c) 2016 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00017 #include "mbed.h" 00018 00019 WiFiInterface *wifi; 00020 00021 const char *sec2str(nsapi_security_t sec) 00022 { 00023 switch (sec) { 00024 case NSAPI_SECURITY_NONE: 00025 return "None"; 00026 case NSAPI_SECURITY_WEP: 00027 return "WEP"; 00028 case NSAPI_SECURITY_WPA: 00029 return "WPA"; 00030 case NSAPI_SECURITY_WPA2: 00031 return "WPA2"; 00032 case NSAPI_SECURITY_WPA_WPA2: 00033 return "WPA/WPA2"; 00034 case NSAPI_SECURITY_UNKNOWN: 00035 default: 00036 return "Unknown"; 00037 } 00038 } 00039 00040 int scan_demo(WiFiInterface *wifi) 00041 { 00042 WiFiAccessPoint *ap; 00043 00044 printf("Scan:\n"); 00045 00046 int count = wifi->scan(NULL,0); 00047 00048 if (count <= 0) { 00049 printf("scan() failed with return value: %d\n", count); 00050 return 0; 00051 } 00052 00053 /* Limit number of network arbitrary to 15 */ 00054 count = count < 15 ? count : 15; 00055 00056 ap = new WiFiAccessPoint[count]; 00057 count = wifi->scan(ap, count); 00058 00059 if (count <= 0) { 00060 printf("scan() failed with return value: %d\n", count); 00061 return 0; 00062 } 00063 00064 for (int i = 0; i < count; i++) { 00065 printf("Network: %s secured: %s BSSID: %hhX:%hhX:%hhX:%hhx:%hhx:%hhx RSSI: %hhd Ch: %hhd\n", ap[i].get_ssid(), 00066 sec2str(ap[i].get_security()), ap[i].get_bssid()[0], ap[i].get_bssid()[1], ap[i].get_bssid()[2], 00067 ap[i].get_bssid()[3], ap[i].get_bssid()[4], ap[i].get_bssid()[5], ap[i].get_rssi(), ap[i].get_channel()); 00068 } 00069 printf("%d networks available.\n", count); 00070 00071 delete[] ap; 00072 return count; 00073 } 00074 00075 int main() 00076 { 00077 printf("WiFi example\n"); 00078 00079 #ifdef MBED_MAJOR_VERSION 00080 printf("Mbed OS version %d.%d.%d\n\n", MBED_MAJOR_VERSION, MBED_MINOR_VERSION, MBED_PATCH_VERSION); 00081 #endif 00082 00083 wifi = WiFiInterface::get_default_instance(); 00084 if (!wifi) { 00085 printf("ERROR: No WiFiInterface found.\n"); 00086 return -1; 00087 } 00088 00089 int count = scan_demo(wifi); 00090 if (count == 0) { 00091 printf("No WIFI APs found - can't continue further.\n"); 00092 return -1; 00093 } 00094 00095 printf("\nConnecting to %s...\n", MBED_CONF_APP_WIFI_SSID); 00096 int ret = wifi->connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2); 00097 if (ret != 0) { 00098 printf("\nConnection error: %d\n", ret); 00099 return -1; 00100 } 00101 00102 printf("Success\n\n"); 00103 printf("MAC: %s\n", wifi->get_mac_address()); 00104 printf("IP: %s\n", wifi->get_ip_address()); 00105 printf("Netmask: %s\n", wifi->get_netmask()); 00106 printf("Gateway: %s\n", wifi->get_gateway()); 00107 printf("RSSI: %d\n\n", wifi->get_rssi()); 00108 00109 wifi->disconnect(); 00110 00111 printf("\nDone\n"); 00112 }
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