Redmi, a Xiaomi spin-off phone brand, says it has made in-display fingerprint sensors that work with LCD screens. Previously, only OLED screens supported them.

The DIY biometric lock is also equipped with three push buttons and a 16×2 LCD display. “This is a security door lock with fingerprint sensor. It is able to record all the door actions to and ...

(reference circuit diagram of the lcd backpack) I2C LCD Display. Now let’s get started. At first you need to solder the backpack to your LCD module. Ensure that the backpack pins are straight and fit ...