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Snowflake: David's "Yuletronics" project.

A christmas decoration shaped like a snowflake, with beautiful white LEDs. Also the most ridiculously shaped PCB I've ever had made.

snowflake animation

Uses the TI TLV61220 boost SMPS controller to generate 5V from a single alkaline cell. Alternatively powered via MicroUSB-B. Controlled by STM32F042, programmed using TagConnect SWD or USB DFU.

PCB front

PCB back

Based on Adam Greig's Christmas Tree

Made in KiCAD 4.0.4.

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Snowflake christmas decoration

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