Create README.md

README.md

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+# This is a DIY automatic cat litter box.
+
+## Strong points:
+1. Battery powered.
+   It is using an NRF52832, standby on 6x18650 batteries is about a Year. Real life usage with 4 cats allowed for 3 months between charging, 400 clean cycles.
+2. Removable sand scoop part.
+   The part that scoops the sand is one hand removable, very siple cleaning/maintaining.
+3. Waterproof.
+   It s based on a servo, the battery holds in place using a magnet, can be taken off, and everything else can be places under running water.
+4. Silent mechanism.
+   It uses a servo and a stadard 10mm bit and screw, cut at the side for top loading, no squeaking sounds, nothing can get stuck in there.
+5. Failproof safety.
+   Besides the logic, is also uses the powerbank module to cut off power in a case of overload, the servo is then released, there is no way to harm a cat.
+
+The ball is a flower pot from italian maker Bama:
+https://www.bamagroup.com/en/sfera-pot-with-saucer-sfera.html
+
+Everything else is cardboard, soaked in thin construction grade resin, filling and sanding. 
+A detailed how with photos can be found on this Greek forum thread:
+https://www.phorum.com.gr/viewtopic.php?f=43&t=50568
+
+Demo video:
+
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+[![IMAGE ALT TEXT](http://img.youtube.com/vi/D4g8feknsxU/0.jpg)](http://www.youtube.com/watch?v=D4g8feknsxU "First poop")
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+[![IMAGE ALT TEXT](http://img.youtube.com/vi/NsHfjCTPNMw/0.jpg)](http://www.youtube.com/watch?v=NsHfjCTPNMw "First poop")
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+[![IMAGE ALT TEXT](http://img.youtube.com/vi/7z5zREmaqtM/0.jpg)](http://www.youtube.com/watch?v=7z5zREmaqtM "First poop")
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+[![IMAGE ALT TEXT](http://img.youtube.com/vi/u9RIlObnvNE/0.jpg)](http://www.youtube.com/watch?v=u9RIlObnvNE "First poop")
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