Hi,
Thanks for the invite.
I can do this for you.
Ihave several IoT projects.
I can fulfill all your techniocal requirement, including LED choosing.
About app, I can make a basic app for you.
Just for demo. and operation
If you need it more marketing and beutifull, I can help with that to, with coleage of mine.
I will choose components from my last design for wifi communication, although I would want to try new (and cheap) wifi IC.
Thats all.
PS,
I hope 30$ is a practical joke.
Amir