WiFi example application for LPC55S69 with ESP8266 shield/module

Committer:
maclobdell
Date:
Wed May 01 20:12:30 2019 +0000
Revision:
1:7a6aa19c0277
Parent:
0:2f4d849e36e5
update to mbed os 5.12.2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
maclobdell 0:2f4d849e36e5 1 /* WiFi Example
maclobdell 0:2f4d849e36e5 2 * Copyright (c) 2016 ARM Limited
maclobdell 0:2f4d849e36e5 3 *
maclobdell 0:2f4d849e36e5 4 * Licensed under the Apache License, Version 2.0 (the "License");
maclobdell 0:2f4d849e36e5 5 * you may not use this file except in compliance with the License.
maclobdell 0:2f4d849e36e5 6 * You may obtain a copy of the License at
maclobdell 0:2f4d849e36e5 7 *
maclobdell 0:2f4d849e36e5 8 * http://www.apache.org/licenses/LICENSE-2.0
maclobdell 0:2f4d849e36e5 9 *
maclobdell 0:2f4d849e36e5 10 * Unless required by applicable law or agreed to in writing, software
maclobdell 0:2f4d849e36e5 11 * distributed under the License is distributed on an "AS IS" BASIS,
maclobdell 0:2f4d849e36e5 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
maclobdell 0:2f4d849e36e5 13 * See the License for the specific language governing permissions and
maclobdell 0:2f4d849e36e5 14 * limitations under the License.
maclobdell 0:2f4d849e36e5 15 */
maclobdell 0:2f4d849e36e5 16
maclobdell 0:2f4d849e36e5 17 #include "mbed.h"
maclobdell 0:2f4d849e36e5 18
maclobdell 0:2f4d849e36e5 19 WiFiInterface *wifi;
maclobdell 0:2f4d849e36e5 20
maclobdell 0:2f4d849e36e5 21 const char *sec2str(nsapi_security_t sec)
maclobdell 0:2f4d849e36e5 22 {
maclobdell 0:2f4d849e36e5 23 switch (sec) {
maclobdell 0:2f4d849e36e5 24 case NSAPI_SECURITY_NONE:
maclobdell 0:2f4d849e36e5 25 return "None";
maclobdell 0:2f4d849e36e5 26 case NSAPI_SECURITY_WEP:
maclobdell 0:2f4d849e36e5 27 return "WEP";
maclobdell 0:2f4d849e36e5 28 case NSAPI_SECURITY_WPA:
maclobdell 0:2f4d849e36e5 29 return "WPA";
maclobdell 0:2f4d849e36e5 30 case NSAPI_SECURITY_WPA2:
maclobdell 0:2f4d849e36e5 31 return "WPA2";
maclobdell 0:2f4d849e36e5 32 case NSAPI_SECURITY_WPA_WPA2:
maclobdell 0:2f4d849e36e5 33 return "WPA/WPA2";
maclobdell 0:2f4d849e36e5 34 case NSAPI_SECURITY_UNKNOWN:
maclobdell 0:2f4d849e36e5 35 default:
maclobdell 0:2f4d849e36e5 36 return "Unknown";
maclobdell 0:2f4d849e36e5 37 }
maclobdell 0:2f4d849e36e5 38 }
maclobdell 0:2f4d849e36e5 39
maclobdell 0:2f4d849e36e5 40 int scan_demo(WiFiInterface *wifi)
maclobdell 0:2f4d849e36e5 41 {
maclobdell 0:2f4d849e36e5 42 WiFiAccessPoint *ap;
maclobdell 0:2f4d849e36e5 43
maclobdell 0:2f4d849e36e5 44 printf("Scan:\n");
maclobdell 0:2f4d849e36e5 45
maclobdell 0:2f4d849e36e5 46 int count = wifi->scan(NULL,0);
maclobdell 0:2f4d849e36e5 47
maclobdell 0:2f4d849e36e5 48 if (count <= 0) {
maclobdell 0:2f4d849e36e5 49 printf("scan() failed with return value: %d\n", count);
maclobdell 0:2f4d849e36e5 50 return 0;
maclobdell 0:2f4d849e36e5 51 }
maclobdell 0:2f4d849e36e5 52
maclobdell 0:2f4d849e36e5 53 /* Limit number of network arbitrary to 15 */
maclobdell 0:2f4d849e36e5 54 count = count < 15 ? count : 15;
maclobdell 0:2f4d849e36e5 55
maclobdell 0:2f4d849e36e5 56 ap = new WiFiAccessPoint[count];
maclobdell 0:2f4d849e36e5 57 count = wifi->scan(ap, count);
maclobdell 0:2f4d849e36e5 58
maclobdell 0:2f4d849e36e5 59 if (count <= 0) {
maclobdell 0:2f4d849e36e5 60 printf("scan() failed with return value: %d\n", count);
maclobdell 0:2f4d849e36e5 61 return 0;
maclobdell 0:2f4d849e36e5 62 }
maclobdell 0:2f4d849e36e5 63
maclobdell 0:2f4d849e36e5 64 for (int i = 0; i < count; i++) {
maclobdell 0:2f4d849e36e5 65 printf("Network: %s secured: %s BSSID: %hhX:%hhX:%hhX:%hhx:%hhx:%hhx RSSI: %hhd Ch: %hhd\n", ap[i].get_ssid(),
maclobdell 0:2f4d849e36e5 66 sec2str(ap[i].get_security()), ap[i].get_bssid()[0], ap[i].get_bssid()[1], ap[i].get_bssid()[2],
maclobdell 0:2f4d849e36e5 67 ap[i].get_bssid()[3], ap[i].get_bssid()[4], ap[i].get_bssid()[5], ap[i].get_rssi(), ap[i].get_channel());
maclobdell 0:2f4d849e36e5 68 }
maclobdell 0:2f4d849e36e5 69 printf("%d networks available.\n", count);
maclobdell 0:2f4d849e36e5 70
maclobdell 0:2f4d849e36e5 71 delete[] ap;
maclobdell 0:2f4d849e36e5 72 return count;
maclobdell 0:2f4d849e36e5 73 }
maclobdell 0:2f4d849e36e5 74
maclobdell 0:2f4d849e36e5 75 int main()
maclobdell 0:2f4d849e36e5 76 {
maclobdell 0:2f4d849e36e5 77 printf("WiFi example\n");
maclobdell 0:2f4d849e36e5 78
maclobdell 0:2f4d849e36e5 79 #ifdef MBED_MAJOR_VERSION
maclobdell 0:2f4d849e36e5 80 printf("Mbed OS version %d.%d.%d\n\n", MBED_MAJOR_VERSION, MBED_MINOR_VERSION, MBED_PATCH_VERSION);
maclobdell 0:2f4d849e36e5 81 #endif
maclobdell 0:2f4d849e36e5 82
maclobdell 0:2f4d849e36e5 83 wifi = WiFiInterface::get_default_instance();
maclobdell 0:2f4d849e36e5 84 if (!wifi) {
maclobdell 0:2f4d849e36e5 85 printf("ERROR: No WiFiInterface found.\n");
maclobdell 0:2f4d849e36e5 86 return -1;
maclobdell 0:2f4d849e36e5 87 }
maclobdell 0:2f4d849e36e5 88
maclobdell 0:2f4d849e36e5 89 int count = scan_demo(wifi);
maclobdell 0:2f4d849e36e5 90 if (count == 0) {
maclobdell 0:2f4d849e36e5 91 printf("No WIFI APs found - can't continue further.\n");
maclobdell 0:2f4d849e36e5 92 return -1;
maclobdell 0:2f4d849e36e5 93 }
maclobdell 0:2f4d849e36e5 94
maclobdell 0:2f4d849e36e5 95 printf("\nConnecting to %s...\n", MBED_CONF_APP_WIFI_SSID);
maclobdell 0:2f4d849e36e5 96 int ret = wifi->connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
maclobdell 0:2f4d849e36e5 97 if (ret != 0) {
maclobdell 0:2f4d849e36e5 98 printf("\nConnection error: %d\n", ret);
maclobdell 0:2f4d849e36e5 99 return -1;
maclobdell 0:2f4d849e36e5 100 }
maclobdell 0:2f4d849e36e5 101
maclobdell 0:2f4d849e36e5 102 printf("Success\n\n");
maclobdell 0:2f4d849e36e5 103 printf("MAC: %s\n", wifi->get_mac_address());
maclobdell 0:2f4d849e36e5 104 printf("IP: %s\n", wifi->get_ip_address());
maclobdell 0:2f4d849e36e5 105 printf("Netmask: %s\n", wifi->get_netmask());
maclobdell 0:2f4d849e36e5 106 printf("Gateway: %s\n", wifi->get_gateway());
maclobdell 0:2f4d849e36e5 107 printf("RSSI: %d\n\n", wifi->get_rssi());
maclobdell 0:2f4d849e36e5 108
maclobdell 0:2f4d849e36e5 109 wifi->disconnect();
maclobdell 0:2f4d849e36e5 110
maclobdell 0:2f4d849e36e5 111 printf("\nDone\n");
maclobdell 0:2f4d849e36e5 112 }