HardLabs

Wedding keepsake

ericmcdaniel·wedding-keepsake·hardware/pcb/keepsake-keychain.kicad_pcb

Wedding keepsake PCB layout, top view — open source AVR/Arduino board by ericmcdaniel

About the Wedding keepsake PCB

Wedding keepsake is an open source AVR/Arduino PCB design by ericmcdaniel, published on GitHub under the MIT license. It is a 4-layer board measuring 80 × 30 mm, with 85 components from 15 distinct parts.

Its main chip is the ATTINY1614-SSF, from the AVR/Arduino family. Other key parts include the 74HC595PW,118, MCP6001T-I/OT and 3SM123C4T1QA. By type, the board carries 33 resistors, 32 LEDs, 9 capacitors, 6 ICs, 4 transistors and 1 diode.

It belongs with the displays & leds designs in this gallery.

From the project

The full design files and source code of the RGB LED matrix on a PCB keychain given as a keepsake party favor at my wedding.

Wedding keepsake, from the project README
From the project README

Main components on the Wedding keepsake

74HC595PW,118MCP6001T-I/OTATTINY1614-SSF3SM123C4T1QA

Wedding keepsake bill of materials (BOM)

85 components, 15 distinct parts.

QtyPartRefs
3
74HC595PW,118
74HC595
Nexperia USA Inc.
U1, U2, U3
1
MCP6001T-I/OT
Op Amp
Microchip Technology
U4
1
ATTINY1614-SSF
ATTINY1614
Microchip Technology
U5
1
3SM123C4T1QA
MEMS Microphone
3S (Solid State System)
U6
4
MMFTP4042K
Diotec Semiconductor
Q1, Q2, Q3, Q4
32
UHD111A-FKA-C3K23E1L3VG5ZB3Z3
UHD111A
Cree LED
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +24
1
BAT54
Diotec Semiconductor
D1
7
GMC10X7R104K25NT
0.1uF
Cal-Chip Electronics, Inc.
C1, C2, C3, C4, C5, C6, C7
2
0603B105K250CT
1uF
Walsin Technology Corporation
C8, C9
8
WR06X101 JTL
100
Walsin Technology Corporation
R1, R4, R7, R10, R13, R16, R19, R22
8
RMCF0603JT120R
120
Stackpole Electronics Inc
R2, R5, R8, R11, R14, R17, R20, R23
8
RMCF0603JT180R
180
Stackpole Electronics Inc
R3, R6, R9, R12, R15, R18, R21, R24
1
WR06X2203FTL
220K
Walsin Technology Corporation
R25
2
RC0603FR-0710KL
10K
YAGEO
R26, R28
6
CR0603-JW-104ELF
100K
Bourns Inc.
R27, R29, R30, R31, R32, R33

Wedding keepsake design files

The KiCad project lives in the ericmcdaniel/wedding-keepsake repository on GitHub; these links point at the commit this page was built from.

Wedding keepsake: common questions

What microcontroller does the Wedding keepsake use?

The Wedding keepsake is built around the ATTINY1614-SSF, from the AVR/Arduino family.

How big is the Wedding keepsake PCB?

The Wedding keepsake measures 80 × 30 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Wedding keepsake?

85 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the Wedding keepsake design files?

From the ericmcdaniel/wedding-keepsake repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Wedding keepsake design in my own project?

Yes, under the terms of its MIT license, which ericmcdaniel chose for the repository.

Can I test firmware for the Wedding keepsake without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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