2 layers80 × 40 mm
2 layers60 × 50 mm
OfficeClock
cmarrin/ClocksVarious clock hardware code
- Size
- 60 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 11
- Pads
- 53
- Tracks, vias
- 69, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 24 Mar 2018
- Updated
- 1 Oct 2026
Overview
OfficeClock is an open-source printed circuit board by cmarrin, from the cmarrin/Clocks repository on GitHub, published under the MIT licence. It is a 2-layer board of 60 × 50 mm with 10 parts on 11 nets, routed with 69 tracks and 0 vias.
It is built around the 74HCT367D and WEMOS D1 MINI. Its parts include 3 ICs, 1 resistor, 1 transistor and 1 switch. It belongs with the ESP8266 boards of this library.
Main components
2
74HCT367D
SO-16-40℃~+125℃ 1 14ns@4.5V,50pF 160uA 4.5V~5.5V 6 6mA 6mA 74HCT Tri-State Unidirectional SOP-16 Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffers, Drivers, Receivers, Transceivers
WEMOS D1 MINI
A mini wifi board with 4MB flash based on ESP-8266EX, hardware version 4.0.0.LolinUncategorised
README
README.mdClocks
Various clock hardware code
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1pin | Connectors:1pin | REF01, REF02, REF03, REF04 |
| 1 | 74HCT367 | Housings_DIP:DIP-16_W10.16mm_LongPads | U2 |
| 1 | BP103B | Opto-Devices:PhotoTransistor_Osram_LPT80A | Q1 |
| 1 | FC-16 | OfficeClock:FC-16-Short | U3 |
| 1 | R_US | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | SW_Push | Buttons_Switches_THT:Push_E-Switch_KS01Q01 | SW1 |
| 1 | WeMos_D1_mini | D1_Mini:D1-MINI | U1 |
Questions
How big is the OfficeClock PCB?
It measures 60 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OfficeClock use?
10 parts, built around the 74HCT367D and WEMOS D1 MINI. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the OfficeClock KiCad files?
From the cmarrin/Clocks repository on GitHub, at the commit this page was made from: the board is MatrixClock/Hardware/OfficeClock.kicad_pcb and its schematic MatrixClock/Hardware/Max7219Clock/Max7219Clock.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the OfficeClock design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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