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

https://www.youtube.com/watch?v=SyGPn_KNL0I


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 syspearl.com ( 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 :)

<p>I made it too ,thanks to this guide!! it helped me with my tests in university :)</p><p>it took me only 1 hour to make it.</p><p>Thank you for this awesome guide!</p>
<p>Pretty neat trick! Welcome to instructables by the way!</p>

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