Hi,
I want to make a access system using Bluetooth technology.
For this, I want to send data to the Arduino device without connecting to Bluetooth and open any pin of the Arduino.
For example, I want to energize the output of the Arduino or another microcontroller when I open the application and shake the phone when I approach the bluetooth module. What microcontroller do I need to use to do this.
Is there a sample MIT APP inventor code? Can you share?
Thank you