So it’s no surprise that [krallja] was able to use an old-style video output chip to drive a TV with an Arduino.

The 486 that [someyob] is restoring had the Turbo button, but sadly there was just a simple LED to show whether or not it was engaged.

Using an Arduino Nano board together with a 2.2 inch UART HMI display the batteries can provide up to 60w of power output.