Learning About And Hacking Digital Pregnancy Tests
What Resides Inside When You Strip It Down
Hardware / software necromancer, collector of Weird Stuff, and maker of Death Generators Foone has been tweeting about electronic pregnancy tests over the long weekend and the results have been quite interesting. A strip down of one reveals it is a standard paper pregnancy test with an 8-bit Holtek HT48C06 microcontroller, 64 bytes of RAM, 1024 words of ROM, and various lights, sensors and a display screen. That makes the device every bit as accurate as a paper strip, with a digital display to make reading the results far easier.
Once cracked open, Foone decided to fill the void inside with upgraded hardware to see what else a pregnancy test could do. First off was an animated loop of the original Doom, which was quickly replaced with a playable version. From there they created a number of retro animations up to and including sk_baby.max, which you should really check out on Twitter, @Foone.
There are a variety of projects you can check out, from amusing hacks such as this to far more technically challenging and useful software and hardware. Take a peek if you are the type of person intrigued by this type of work.
A hacker has peered into a fancy digital pregnancy stick and found it is just a glorified analogue paper test strip with a screen added, a novel form of activation, and a larger price tag.
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