Introduction: How to Display Whatever You Want on Calculator

If you are using phone, you can watch it directly through youtube:

It all started when i found a module that can display big images on a
screen. I ordered it because I wanted to see how it works. After a while i didn't know what to do with that, until i got the idea to prank a friend that my calculator can do more then he thinks. I contacted with the guy that created this board, and asked him to create a keyboard with custom parameters. Happily, he agreed and here is the result. I tried to be as detailed as i could in the video to make it easier for anyone who wants that also.

All you need:

  • Free 40 minutes to build it.
  • Broken calculator
  • Full kit from ( Firecrest board + keyboard + cables) Screen size is about 7x5 cm, it will fit in most calculators
  • Screwdriver
  • Cutter
  • Foil
  • Tape
  • Micro sdcard
  • 2 button batteries
  • Glue
  • Zip tie

Have fun :)

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