HardLabs

B-Sides 2026

OklahomaOpenSourceHardware·OKC-OSH-2024-Badge·B-Sides 2026/B-Sides 2026/B-Sides 2026.kicad_pcb

B-Sides 2026 PCB layout, top view — open source AVR/Arduino board by OklahomaOpenSourceHardware
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About the B-Sides 2026 PCB

B-Sides 2026 is an open source AVR/Arduino PCB design by OklahomaOpenSourceHardware, published on GitHub. It is a 2-layer board measuring 64.6 × 50.8 mm, with 23 components from 13 distinct parts.

Its main chip is the C2052778, from the AVR/Arduino family. By type, the board carries 6 capacitors, 5 resistors, 4 diodes, 3 transistors, 2 connectors and 1 IC.

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 2026

C2052778

B-Sides 2026 bill of materials (BOM)

23 components, 13 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C2052778
ATtiny816-M
U2
1
C81445
2N7002H
Q1
2
C347476
Si2323DS
Q2, Q6
1
Conn_01x01_Pin
J1
1
C92272
Conn_02x03_Counter_Clockwise
J2
1
C964845
Battery
BT1
1
C49246959
Speaker_Ultrasound
LS1
4
C3647024
WS2812B
D1, D2, D37, D38
5
C12530
2u
C1, C2, C3, C4, C5
1
C1525
0.1u
C6
1
R
R1
2
RK73B1JTTDD270J
27
R2, R4
2
CR0603-FX-5101ELF
5.1k
R3, R5

B-Sides 2026 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 2026: common questions

What microcontroller does the B-Sides 2026 use?

The B-Sides 2026 is built around the C2052778, from the AVR/Arduino family.

How big is the B-Sides 2026 PCB?

The B-Sides 2026 measures 64.6 × 50.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the B-Sides 2026?

23 components, from 13 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 2026 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 2026 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 2026 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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