mbed-os-examples / Mbed OS mbed-os-example-mbed5-wifi

A quick example of a simple WiFi application using the WiFi and network-socket APIs that is provided as a part of mbed-os.

The program brings up the WiFi and the underlying network interface, and uses it to scans available networks, connects to a network, prints interface and connection details and performs simple HTTP operation.

Supported hardware:

Not that the mbed target board the WiFi shield gets connected to shouldn't have any other network interface e.g. Ethernet.

ESP8266 is a fallback option and will be used if the build is for unsupported platform.

Diff: main.cpp

Revision:
72:b4761c52cc91
Parent:
71:a0fbcc153b55
Child:
74:af086eac5e99
--- a/main.cpp	Tue Jul 24 15:15:02 2018 +0100
+++ b/main.cpp	Thu Jul 26 13:00:03 2018 +0100
@@ -169,6 +169,10 @@
 #endif
 
     wifi = WiFiInterface::get_default_instance();
+    if (!wifi) {
+        printf("ERROR: No WiFiInterface found.\n");
+        return -1;
+    }
 
     count = scan_demo(wifi);
     if (count == 0) {