Firmware, Extend Functionality of LED_BUILTIN, Double Wink on WiFi Connect, Tripple Wink on MQTT Connect

Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
By looking at the Homework2 assemblies alone a user cannot tell the status of the WiFi connection or the MQTT broker connection.

Describe the solution you'd like
A clear and concise description of what you want to happen.
Extend the functionality of the LED_BUILTIN to show WiFi connection and MQTT broker connection.
Suggest the current single wink when no WiFi.
Double wink with WiFi
Tripple wink with MQTT broker connection.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.
In addition some kind of indication on the LCD might help.