Good day guys, I am working on a free project and I encounter a problem. The story goes like this, I want to use my smartphone to unlock a bluetooth enabled door. I am using MIT App Inventor to make the app, and some other components like Arduino Uno, Bluetooth HC-05, servo motor and etc. I design my app to be able to perform lock and unlock actions when I entered the correct PIN number, the problem now is, hwo can I send the pin number to the bluetooth so that the bluetooth module can recognise my pin and authorises me?
Thanks in advance!! I really need help.
Unlock a bluetooth module (HC-05) using smartphone