HardLabs

7seg clock

hggh·7seg-clock·pcb/clock-base-7seg/clock-base-7seg.kicad_pcb

7seg clock PCB layout, top view — open source board by hggh

About the 7seg clock PCB

7seg clock is an open source PCB design by hggh, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 248 × 105 mm, with 118 components from 19 distinct parts.

By type, the board carries 58 diodes, 58 capacitors and 2 connectors.

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

From the project

7 seg clock with WS2812b leds

To control the WS2812b LEDs the clock controller from wood clock light is used: https://github.com/hggh/wood-clock-light/tree/master/pcb/esp32-clock-base

7seg clock, from the project README
From the project README

7seg clock bill of materials (BOM)

118 components, 19 distinct parts.

QtyPartRefs
1
LEDs
J1
1
power
J2
4
H1.1
D1, D2, D31, D32
4
H1.2
D3, D4, D33, D34
4
H1.3
D5, D6, D35, D36
4
H1.4
D7, D8, D37, D38
4
H1.5
D9, D10, D39, D40
4
H1.6
D11, D12, D41, D42
4
H1.7
D13, D14, D43, D44
4
H2.1
D15, D16, D45, D46
4
H2.2
D17, D18, D47, D48
4
H2.3
D19, D20, D49, D50
4
H2.4
D21, D22, D51, D52
4
H2.5
D23, D24, D53, D54
4
H2.6
D25, D26, D55, D56
4
H2.7
D27, D28, D57, D58
1
Trenner1
D29
1
Trenner2
D30
58
100nF
C1, C2, C3, C4, C5, C6, C7, C8 +50

7seg clock design files

The KiCad project lives in the hggh/7seg-clock repository on GitHub; these links point at the commit this page was built from.

7seg clock: common questions

How big is the 7seg clock PCB?

The 7seg clock measures 248 × 105 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 7seg clock?

118 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the 7seg clock design files?

From the hggh/7seg-clock repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the 7seg clock design in my own project?

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

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