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ArcDice

VorosEgyes·ArcDice·hardware/ArcDice.kicad_pcb

ArcDice PCB layout, top view — open source AVR/Arduino board by VorosEgyes
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About the ArcDice PCB

ArcDice is an open source AVR/Arduino PCB design by VorosEgyes, published on GitHub under the MIT license. It is a 2-layer board measuring 70 × 70 mm, with 22 components from 10 distinct parts.

Its main chip is the ATtiny13A-P, from the AVR/Arduino family. Other key parts include the TP4056_Module. By type, the board carries 8 resistors, 7 diodes, 2 ICs, 2 switches, 2 capacitors and 1 battery holder.

It belongs with the power & battery designs in this gallery.

From the project

A compact digital dice roller with a 7-LED face powered by ATtiny13. Includes PlatformIO firmware, KiCad schematics, and PCB design for a DIY electronic dice game.

ArcDice is a compact ATtiny13-based digital dice project with a 7-LED face, low-power sleep behavior, and a matching KiCad hardware design.

Keywords: digital dice, ATtiny13 dice, LED dice, DIY electronic dice.

- Rolls a random value from 1 to 6 with a short LED animation. - Drives a 7-point dice face from only 4 MCU output lines. - Uses button wake-up and sleep mode to reduce power draw.

ArcDice, from the project README
From the project README

Main components on the ArcDice

ATtiny13A-PTP4056_Module

ArcDice bill of materials (BOM)

22 components, 10 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATtiny13A-P
U1
1
TP4056_Module
U2
1
Battery_Cell
BT1
1
SW_SPDT
SW1
1
SW_Push
SW2
7
LED
D1, D2, D3, D4, D5, D6, D7
1
100nF
C1
1
10uF
C2
7
220R
R1, R2, R3, R4, R5, R6, R7
1
10k
R8

ArcDice design files

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

ArcDice: common questions

What microcontroller does the ArcDice use?

The ArcDice is built around the ATtiny13A-P, from the AVR/Arduino family.

How big is the ArcDice PCB?

The ArcDice measures 70 × 70 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ArcDice?

22 components, from 10 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 ArcDice design files?

From the VorosEgyes/ArcDice 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 ArcDice design in my own project?

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

Can I test firmware for the ArcDice 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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