How can I connect multiple applications on an Arduino? Answered
Basically, I want to control multiple application using a smartphone to an Arduino.
If I want to control lightbulb, security camera, garage door, and security sensor, can I use only 1 Arduino or I need 4 Arduinos to connect to 4 applications?
Is there a specific Arduino board should I use? Do you recommend of using an Arduino BT since I am connecting it to a smartphone?