HardLabs

Word clock

fablab-imperia·word-clock·Circuit/wordclock.kicad_pcb

Word clock PCB layout, top view — open source AVR/Arduino board by fablab-imperia

About the Word clock PCB

Word clock is an open source AVR/Arduino PCB design by fablab-imperia, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 59.7 × 87.4 mm, with 10 components from 9 distinct parts.

Its main chip is the Arduino_Nano_v3.x, from the AVR/Arduino family. By type, the board carries 2 ICs, 2 connectors, 2 switches, 2 resistors, 1 module and 1 diode.

From the project

Progetto per ralizzazione Word Clock Modulare del Fablab Imperia

A word clock is a device that shows the current time on a LED matrix by using the word rapresentation of the actual time in a specific language and with a specific frequency.

For simplicity we chose to use a 12 x 12 matrix of letters, Italian as a language and 5 minutes as a frequency. So time is shown using Italian sentences every 5 minutes. Due to the simplicity and flexibility of the solution, it can be adapted to other languages and frequencies.

Main components on the Word clock

Arduino_Nano_v3.x

Word clock bill of materials (BOM)

10 components, 9 distinct parts.

QtyPartRefs
1
~
U1
1
~
U2
1
Arduino_Nano_v3.x
A1
1
Conn_Coaxial_Power
J1
1
Conn_01x03_Pin
J2
1
MIN
SW1
1
ORE
SW2
1
D_Schottky
D1
2
R
R1, R2

Word clock design files

The KiCad project lives in the fablab-imperia/word-clock repository on GitHub; these links point at the commit this page was built from.

Word clock: common questions

What microcontroller does the Word clock use?

The Word clock is built around the Arduino_Nano_v3.x, from the AVR/Arduino family.

How big is the Word clock PCB?

The Word clock measures 59.7 × 87.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Word clock?

10 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the Word clock design files?

From the fablab-imperia/word-clock repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Word clock design in my own project?

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

Can I test firmware for the Word clock 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.

Similar boards