HardLabs

Bitclock

dimka-rs·mykicad·bitclock/bitclock.kicad_pcb

Bitclock PCB layout, top view — open source AVR/Arduino board by dimka-rs

About the Bitclock PCB

Bitclock is an open source AVR/Arduino PCB design by dimka-rs, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 61 × 61 mm, with 11 components from 8 distinct parts.

Its main chip is the ATTINY13-S, from the AVR/Arduino family. Other key parts include the TA23-11EWA and TM1637. By type, the board carries 3 ICs, 3 resistors, 2 switches, 2 capacitors and 1 connector.

From the project

Pile of semi- or unfinished KiCAD projects

Main components on the Bitclock

ATTINY13-STA23-11EWATM1637

Bitclock bill of materials (BOM)

11 components, 8 distinct parts.

QtyPartRefs
1
ATTINY13-S
IC1
1
TA23-11EWA
U1
1
TM1637
U2
1
USB_OTG
P1
1
Hour
SW1
1
Minute
SW2
2
0.1u
C1, C2
3
10k
R1, R2, R3

Bitclock design files

The KiCad project lives in the dimka-rs/mykicad repository on GitHub; these links point at the commit this page was built from.

Bitclock: common questions

What microcontroller does the Bitclock use?

The Bitclock is built around the ATTINY13-S, from the AVR/Arduino family.

How big is the Bitclock PCB?

The Bitclock measures 61 × 61 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bitclock?

11 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the Bitclock design files?

From the dimka-rs/mykicad repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Bitclock design in my own project?

Yes, under the terms of its GPL-3.0 license, which dimka-rs chose for the repository.

Can I test firmware for the Bitclock 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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