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B-Sides Badge

OklahomaOpenSourceHardware·OKC-OSH-2024-Badge·B-Sides Badge/B-Sides Badge.kicad_pcb

B-Sides Badge PCB layout, top view — open source AVR/Arduino board by OklahomaOpenSourceHardware
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About the B-Sides Badge PCB

B-Sides Badge is an open source AVR/Arduino PCB design by OklahomaOpenSourceHardware, published on GitHub. It is a 2-layer board measuring 75.5 × 78.8 mm, with 70 components from 26 distinct parts.

Its main chip is the ATtiny814-SS, from the AVR/Arduino family. Other key parts include the C2052778, TPS613221ADBV and LM4040DBZ-5. By type, the board carries 36 diodes, 17 resistors, 4 ICs, 4 connectors, 3 transistors and 3 capacitors.

It belongs with the wearables designs in this gallery.

From the project

2024 badge for Oklahoma PCB Tech Conferences

Main components on the B-Sides Badge

ATtiny814-SSC2052778TPS613221ADBVLM4040DBZ-5

B-Sides Badge bill of materials (BOM)

70 components, 26 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATtiny814-SS
U1
1
C2052778
TSOP382xx
U2
1
TPS613221ADBV
U3
1
LM4040DBZ-5
U5
1
C347476
PMOS
Q2
1
2N3904
Q3
1
MMBT3906
Q4
1
Conn_01x02_Male
J1
1
C92272
Conn_02x03_Counter_Clockwise
J2
1
Conn_01x02
J3
1
Conn_01x06
J4
2
SPL_PL90
LD1, LD2
1
C3647024
LED
D1
1
C3647024
BAT54C
D2
32
LED
D3, D4, D7, D8, D9, D10, D11, D12 +24
1
ESD5Zxx
D5
1
D_Schottky_Small
D6
1
2.2u
L1
1
C12530
C
C1
2
C12530
4.7u
C2, C3
Show 6 more
QtyPartRefs
2
1.8k
R1, R6
2
C138021
220
R2, R4
1
C105872
100
R3
1
C105872
220
R5
3
3.3
R7, R8, R9
8
220
R10, R11, R12, R13, R14, R15, R16, R17

B-Sides Badge design files

The KiCad project lives in the OklahomaOpenSourceHardware/OKC-OSH-2024-Badge repository on GitHub; these links point at the commit this page was built from.

B-Sides Badge: common questions

What microcontroller does the B-Sides Badge use?

The B-Sides Badge is built around the ATtiny814-SS, from the AVR/Arduino family.

How big is the B-Sides Badge PCB?

The B-Sides Badge measures 75.5 × 78.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the B-Sides Badge?

70 components, from 26 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the B-Sides Badge design files?

From the OklahomaOpenSourceHardware/OKC-OSH-2024-Badge repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the B-Sides Badge design in my own project?

The repository has no license, so all rights stay with OklahomaOpenSourceHardware. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the B-Sides Badge 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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