mDNS example

Shows how to use mDNS to advertise lookup services and hosts

Example workflow

mDNS is initialized with host name and instance name defined through make menuconfig and _http._tcp service is added to be advertised
WiFi STA is started and trying to connect to the access point defined through make menuconfig
The system event handler is used to pass the network events to mDNS so the service is aware when the interface comes up or down
GPIO0 (BOOT Button) is initialized as pulled-up input that can be monitored for button press
Example task is started to check if the button is pressed so it can execute the mDNS queries defined

Run make menuconfig to configure the access point's SSID and Password and the default device mDNS host name and instance name
Run make flash monitor to build and upload the example to your board and connect to it's serial terminal
Wait for WiFi to connec to your access point
You can now ping the device at [hostname].local and browse for _http._tcp on the same network to find the advertised service
Pressing the BOOT button will start quring the local network for the predefined in check_button hosts and services

See the README.md file in the upper level 'examples' directory for more information about examples.