Added Led hoops project

pages/003-led_hoop.cfg

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+filename = 003_genesis.html
+title = PCB LED hoop earring project
+description = KiCad project for a PCB earring with LED's
+keywords = KiCad PCB jewelry
+created = 2024-01-02
+updated = 2024-01-02

pages/003-led_hoop.md

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+## LED Hoops
+
+### What?
+
+First, a blog post by [mitxela](https://mitxela.com) came upon my eyes, and piqued my interest.
+
+Inspired by the [industrial piercing](https://mitxela.com/projects/scaffold) and the electronics that went into it, I though if other pieces of jewelry can be made with electronics (they can, it was specifically a question if my measly hands could craft them).
+
+Since for the first time, I didn't want to experiment with absolute microscopic sizes, I decided that a 4 cm hoop was an adequate project to attempt.
+
+![schematic_kicad_image](img/led_hoop/schematic.png =800x)
+
+An Attiny 24/44/84A can be used, I went with a -M variant, since it is slightly larger then the -MM variant, by a whole mm, which I assume will be easier to solder.
+
+Placing them all in a nice hoop looking pcb, we obtain this:
+
+![pcb_kicad_image](img/led_hoop/pcb.svg)
+
+The test version comes with ISP pins for debugging and programming the chip when it's already installed.
+
+0603 LED's were chosen for the same reason, they are small enough to be not that noticeable, but large enough to be not an incredible pain to work with.
+
+### Why??
+
+It looked and sounded fun, my only previous projects related to PCB production before this was edition a split [Sweep](https://github.com/davidphilipbarr/Sweep) keyboard.
+
+And so I did.
+
+### Cool. What now?
+
+You can take your chance and go to [the git repository](https://git.technoduck.me/technoduck/led_hoop) for the project, `git pull`, and try your own luck.
+
+
+
+
+Batteries not included.
+