HardLabs

Dachboden badge

jadeaffenjaeger·dachboden_badge·pcb/badge.kicad_pcb

Dachboden badge PCB layout, top view — open source AVR/Arduino board by jadeaffenjaeger

About the Dachboden badge PCB

Dachboden badge is an open source AVR/Arduino PCB design by jadeaffenjaeger, published on GitHub. It is a 2-layer board measuring 90 × 90 mm, with 29 components from 6 distinct parts.

Its main chip is the ATtiny45-20XU, from the AVR/Arduino family. By type, the board carries 16 diodes, 9 capacitors, 2 connectors, 1 IC and 1 resistor.

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

From the project

PCB Art Badge with WS2812B LEDs and attiny45 MCU

PCB Art badge using 2020 WS2812B SMD LEDs, attiny45 MCU and light_ws2812 library.

To build the firmware, you need the avr-gcc toolchain and a USBtinyISP (which you can buy for a few euros on AliExpress etc.)

Then, with the programmer connected to the test points on the back of the badge, run:

Dachboden badge, from the project README
From the project README

Main components on the Dachboden badge

ATtiny45-20XU

Dachboden badge bill of materials (BOM)

29 components, 6 distinct parts.

QtyPartRefs
1
ATtiny45-20XU
U1
1
AVR-ISP-6
J1
1
USB_B_Micro
J2
16
2812B_2020
D1, D2, D3, D4, D5, D6, D7, D8 +8
9
100n
C1, C2, C3, C4, C5, C6, C7, C8 +1
1
470
R1

Dachboden badge design files

The KiCad project lives in the jadeaffenjaeger/dachboden_badge repository on GitHub; these links point at the commit this page was built from.

Dachboden badge: common questions

What microcontroller does the Dachboden badge use?

The Dachboden badge is built around the ATtiny45-20XU, from the AVR/Arduino family.

How big is the Dachboden badge PCB?

The Dachboden badge measures 90 × 90 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Dachboden badge?

29 components, from 6 distinct parts. The full bill of materials is listed on this page.

Where can I download the Dachboden badge design files?

From the jadeaffenjaeger/dachboden_badge repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Dachboden badge design in my own project?

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

Can I test firmware for the Dachboden 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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