This small House Invaders sport runs on an Arduino Nano with a salvaged CRT show

Rob Cai over on Instructables has created his personal model of the basic online game House Invaders utilizing an Arduino Nano. Nonetheless, not like most different tasks that will sometimes incorporate some type of LCD or OLED display, he selected to make use of a small black and white cathode ray tube (CRT) show recovered from an previous video intercom system.

As his first step, Cai wanted to find the analog-only video enter on the salvaged display in addition to discover its rated provide voltage. From right here, he constructed a really minimalistic tiny arcade cupboard out of cardboard and used sizzling glue to hitch the panels collectively. However earlier than he might assemble something, Cai wrote his port of House Invaders by designing a number of sorts of 2D sprites and loading them into a number of arrays. Outputting a video sign was achieved by way of using the TVout library, which takes an array of pixels and writes them sequentially to the designated RCA video output pin, in addition to syncing every body with a secondary pin.

The controls for the sport are comprised of 5 buttons, with 4 on the left for shifting in a sure path, and the final one on the fitting for firing the participant’s laser upwards. For extra details about how Cai constructed this mini House Invaders arcade cupboard, you’ll be able to learn his information right here or watch the demo video under!