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Led wordclock

Virtex7·led-wordclock·Layout_Platine/wordclock.kicad_pcb

Led wordclock PCB layout, top view — open source AVR/Arduino board by Virtex7

About the Led wordclock PCB

Led wordclock is an open source AVR/Arduino PCB design by Virtex7, published on GitHub. It is a board measuring 80 × 50.8 mm, with 74 components from 39 distinct parts.

Its main chip is the ATMEGA8-AI, from the AVR/Arduino family. Other key parts include the LM317 and 74HC04. By type, the board carries 31 resistors, 15 capacitors, 13 connectors, 5 diodes, 3 ICs and 3 transistors.

From the project

Atmel based Controller for a DCF sychronised "Wordclock"

Repo für die sog. umgangssprachliche Uhr mit LED-Darstellung, kurz "Wordclock"

Update: das Repo ist up: https://github.com/Virtex7/AtmelLib

das Repo mit der Lib muss jetzt einfach im selben Verzeichnis sein, wie das Repo mit der Wordclock, damit die Abhänigkeiten aufgelöst sind und das kompilieren klappt.

Also einfach ausführen (in einem freien Verzeichnis):

git clone https://github.com/Virtex7/led-wordclock.git git clone https://github.com/Virtex7/AtmelLib

Main components on the Led wordclock

ATMEGA8-AILM31774HC04

Led wordclock bill of materials (BOM)

74 components, 39 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA8-AI
IC1
1
LM317
U1
1
74HC04
U3
1
BC817
Q1
1
BC807
Q2
1
BC817
Q101
1
10MHz
X1
1
DCF_CONN_4
P1
1
5V_CONN_2
P2
1
ISP
P3
1
Led_Zeilen_CONN_11
P5
1
Led_Spalten_CONN_11
P6
4
CONN_1
P7, P8, P9, P10
1
P_led
P13
1
CONN_2
P14
1
CONN_01X03
P101
1
CONN_01X01
P102
1
CR2032
BT1
1
DS3231M
DS1
1
HT1632C
HT1
Show 19 more
QtyPartRefs
1
grün
D1
1
min3
D2
1
min4
D3
1
min1
D4
1
min2
D5
7
100n
C1, C4, C7, C9, C10, C11, C15
2
22p
C2, C3
5
10u
C5, C6, C8, C12, C13
1
10u
C16
1
150
R1
1
10k
R2
7
220
R3, R19, R20, R23, R24, R25, R26
1
150
R4
6
1k
R5, R17, R18, R21, R22, R28
11
33
R6, R7, R8, R9, R10, R11, R12, R13 +3
1
100k
R27
1
150
R29
1
pullup
R101
1
1k
R102

Led wordclock design files

The KiCad project lives in the Virtex7/led-wordclock repository on GitHub; these links point at the commit this page was built from.

Led wordclock: common questions

What microcontroller does the Led wordclock use?

The Led wordclock is built around the ATMEGA8-AI, from the AVR/Arduino family.

How big is the Led wordclock PCB?

The Led wordclock measures 80 × 50.8 mm and is 1.6002 mm thick.

How many components are on the Led wordclock?

74 components, from 39 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 Led wordclock design files?

From the Virtex7/led-wordclock repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Led wordclock design in my own project?

The repository has no license, so all rights stay with Virtex7. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Led wordclock 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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