WiFi example for mbed OS, fork from https://github.com/ARMmbed/mbed-os-example-wifi

This is an example of a Wi-Fi application using the Wi-Fi and network socket APIs that Mbed OS provides.

The program brings up the Wi-Fi and the underlying network interface and uses it to scan available networks, connects to a network, prints interface and connection details and performs an HTTP operation.

For more information about Wi-Fi APIs, please visit the Mbed OS Wi-Fi documentation.

This example has been used on the following platforms

Revision:
0:0593b97dec0b
Child:
1:67275d54581f
diff -r 000000000000 -r 0593b97dec0b mbed_app.json
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed_app.json	Thu Feb 22 05:44:51 2018 +0000
@@ -0,0 +1,55 @@
+{
+    "config": {
+	"wifi-shield": {
+            "help": "Options are internal, WIFI_ESP8266, WIFI_IDW0XX1, WIFI_ESP32",
+            "value": "internal"
+	},
+        "wifi-ssid": {
+            "help": "WiFi SSID",
+            "value": "\"SSID\""
+        },
+        "wifi-password": {
+            "help": "WiFi Password",
+            "value": "\"PASSWORD\""
+        },
+        "wifi-tx": {
+            "help": "TX pin for serial connection to external device",
+            "value": "D1"
+        },
+        "wifi-rx": {
+            "help": "RX pin for serial connection to external device",
+            "value": "D0"
+        },
+        "wifi-en": {
+            "help": "EN pin for ESP32",
+            "value": "NC"
+        },
+        "wifi-io0": {
+            "help": "IO0 pin for ESP32",
+            "value": "NC"
+        }
+    },
+    "target_overrides": {
+        "*": {
+            "platform.stdio-convert-newlines": true
+        },
+        "UBLOX_EVK_ODIN_W2": {
+            "target.device_has": ["EMAC"]
+        },
+        "NUCLEO_L476RG": {
+            "wifi-tx": "D8",
+            "wifi-rx": "D2"
+        },
+        "NUCLEO_F401RE": {
+            "wifi-tx": "D8",
+            "wifi-rx": "D2"
+        },
+        "GR_LYCHEE": {
+            "wifi-shield": "WIFI_ESP32",
+            "wifi-en": "P5_3",
+            "wifi-io0": "P3_14",
+            "wifi-tx": "P7_1",
+            "wifi-rx": "P0_1"
+        }
+    }
+}