If you want a good display ... for your Arduino. [Doctor Volt] demonstrates the idea with a 2018 Samsung Galaxy A8, though a wide variety of Android phones can be put to use in this way.

Many cars these days come with a basic Heads Up Display, or HUD ... but it’s effective nonetheless. An ELM327 Bluetooth OBD-II reader is hooked up to the car, collecting data on speed and ...

Using an Arduino Mega microcontroller ... The 4.3-inch ITEAD touch screen serves as an interactive display, making Twinky more user-friendly. Twinky is designed to be a versatile personal assistant.