Hi, I am using fingerprint scanner as the authentication method in my project.
But I am facing some problems...
Do anyone know how to turn on the fingerprint scanner only after "ON" button is pressed in the android apps. I am using HC-05 bluetooth module to connect both Arduino and android studio together. So what I want to ask is how to activate the fingerprint scanner only after button pressed? What is the code do i need to add on in my Arduino Coding?