HardLabs

LED DISPLAY BOARD

sparkletron·mil_time_clock·schematic/LED_DISPLAY_BOARD.kicad_pcb

LED DISPLAY BOARD layout, top view — open source board by sparkletron

About the LED DISPLAY BOARD

LED DISPLAY BOARD is an open source PCB design by sparkletron, published on GitHub under the MIT license. It is a 2-layer board measuring 95 × 41.9 mm, with 21 components from 9 distinct parts.

Other key parts include the 157142V12703. By type, the board carries 9 diodes, 5 switches, 4 ICs, 2 resistors and 1 connector.

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

From the project

Military Time Alarm Clock

Military Time Clock using the 89S51 microcontroller.

IMPORTANT: No build instructions are included. All parts needed are here, you're on your own.

- docs - Datasheets: Data documents for various ICs. - Manual: User manual for the clock. - schematic: KiCad schematic of Military Time Clock, including PCB design and bill of materials. - model - FreeCAD: Any FreeCAD models used in the project. - Inventor: Any Autodesk Inventor 2023 models used in the project (STL included). - src: Any source code for the project. - clock_sdcc: contains make file and code for the clock project.

Main components on the LED DISPLAY BOARD

157142V12703

LED DISPLAY BOARD bill of materials (BOM)

21 components, 9 distinct parts — part numbers from the project's BOM.

QtyPartRefs
4
157142V12703
SM420561N
Würth Elektronik
U1, U2, U3, U4
1
929500-01-36-RK
Conn_01x27
3M
J1
1
B3F-1020
SET TIME
E-Switch
S1
1
B3F-1020
HOUR
E-Switch
S2
1
B3F-1020
MINUTE
E-Switch
S3
1
B3F-1020
ALARM ON
E-Switch
S4
1
B3F-1020
SET_ALARM
E-Switch
S5
9
151031VS06000
LED
Würth Elektronik
D1, D2, D3, D4, D5, D6, D7, D8 +1
2
CFR16J1K0
220R
TE Connectivity Passive Product
R1, R2

LED DISPLAY BOARD design files

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

LED DISPLAY BOARD: common questions

How big is the LED DISPLAY BOARD?

The LED DISPLAY BOARD measures 95 × 41.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the LED DISPLAY BOARD?

21 components, from 9 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 DISPLAY BOARD design files?

From the sparkletron/mil_time_clock 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 LED DISPLAY BOARD design in my own project?

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

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