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Std edition xmas2020star

Profile:Using two I²C controlled PCA9555PW I/O Expanders allows controlling up to 32 LEDs individually. Animating the shooting star on a dark PCB.

License: GPL 3.0

Published Time: 2020-12-21 14:53:15
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Decorate your house today with this Raspberry Pi (Zero) controlled shooting star.


Control each LED individually with the I²C 16 I/O expander.


By programming the Raspberry Pi (Zero) you can animate the shooting star as you wish.


The dark PCB makes it stand out even more.


You can order these PCBs at https://jlcpcb.com starting from just $2 for 5 PCBs.

Using the EasyEDA editor makes ordering PCBs and components from LCSC a breeze.


Merry Christmas everyone.

Design Drawing
schematic diagram
1 /
1 /
ID Name Designator Footprint Quantity BOM_Supplier BOM_Manufacturer BOM_Manufacturer Part BOM_Supplier Part
1 19-213/Y2C-CQ2R2L/3T(CY) LED20,LED19,LED18,LED17,LED21,LED15,LED14,LED13,LED12,LED16 LED0603-R-RD 10 LCSC EVERLIGHT 19-213/Y2C-CQ2R2L/3T(CY) C72038
2 Female header/2.54mm2x3 Female header H1 HDR-TH_6P-P2.54-V-R2-C3-S2.54 1 LCSC ReliaPro Female header/2.54mm2x3 Female header C47552
3 19-217/GHC-YR1S2/3T LED6,LED7,LED8,LED9,LED10,LED25,LED22,LED23,LED24,LED31 LED0603-R-RD 10 LCSC EVERLIGHT 19-217/GHC-YR1S2/3T C72043
4 LTST-C190GKT LED11,LED5,LED4,LED3,LED30,LED26,LED27,LED28,LED29,LED2 LED0603-RD 10 LCSC Lite-On LTST-C190GKT C125093
5 19-217/BHC-ZL1M2RY/3T LED1,LED32 LED0603-R-RD 2 LCSC EVERLIGHT 19-217/BHC-ZL1M2RY/3T C72041
6 PCA9555PW,118 U1,U2 TSSOP-24_L7.8-W4.4-P0.65-LS6.4-BL 2 LCSC NXP PCA9555PW,118 C128392
7 360 R31,R30,R29,R28,R27,R26,R25,R24,R23,R22,R21,R20,R19,R18,R1,R32,R3,R4,R5,R6,R7,R8,R9,R10,R11,R12,R13,R14,R15,R16,R17,R2 R0603 32 LCSC UniOhm 0603WAF3600T5E C25194


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