jeffglancy / Snowflake Pendant v1

Project Information

Snowflake necklace pendant using an Attiny85 to blink LEDs.
Schematic Status
Layout Status

Schematic and PCB Layout


PCB was fab'd at OSH park and works great. Arduino code here:

Bill of Materials

Part Number
Actual Part
Unit Cost
Order Qty
Total Cost
D1, D2, D3, D4, D5, D6 LED Blue 470nm 0603 SMD OSRAM Opto Semiconductors Inc LB Q39G-L2N2-35-1 0603 No Digi-key Number 6 ?? 0 0
R1, R2, R3, R4, R5, R6 Resistor SMD 24.9 OHM 1% 1/10W 0603 Samsung Electro-Mechanics America, Inc RC1608F24R9CS 0603 1276-3499-6-ND 6 0.1 6 0.6
U1 ATtiny85V-10SU SOIC Atmel ATTINY85V-10SU SOIC No Digi-key Number 1 ?? 0 0
B1 Coin cell battery retainer (2016, 2020, 2025, 2032) Harwin S8211-46R 952-1735-2-ND 1 0.72 1 0.72
C1 Capacitor Tantalum 47uF 6.3V 20% 0805 Nichicon F950J476MPAAQ2 0805 No Digi-key Number 1 ?? 0 0
C2 0.1uF 50V Y5V SURFACE-MOUNT CERAMIC MULTILAYER CAPACITOR Yageo CC0805ZRY5V9BB104 0805 No Digi-key Number 1 ?? 0 0
SW1 Sub-miniature slide switch DPDT C&K Components JS202011SCQN SW_DPDT 401-2002-2-ND 1 0.48 1 0.48

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