2 layers58 × 48 mm
2 layers155 × 155 mm
CybdoClock
Cybdo/CybdoClockword clock / calendar / whatever. I'm too broke to afford a good looking word clock so i'm making my own !!
- Size
- 155 × 155 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 237
- Nets
- 101
- Pads
- 609
- Tracks, vias
- 402, 215
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 13 Jun 2026
- Updated
- 24 Jun 2026
Overview
CybdoClock is an open-source printed circuit board by Cybdo, from the Cybdo/CybdoClock repository on GitHub, published under the MIT licence. It is a 2-layer board of 155 × 155 mm with 237 parts on 101 nets, routed with 402 tracks and 215 vias.
It is built around the ALS-PDIC144-6C/L378, 74HCT595D and CJL2301, with the HSW6822 and 3296W-1-103LF among its other parts. Its parts include 197 diodes, 15 resistors, 14 transistors, 5 ICs and 1 capacitor. It belongs with the lEDs and displays boards and the ESP32 and RISC-V boards of this library.
Main components
5
ALS-PDIC144-6C/L378
插件,D=3mm-40℃~+85℃ 1.8V~5.5V Light Intensity 插件,D=3mm Ambient Light Sensors ROHSEverlight ElectronicsAmbient Light Sensors
74HCT595D
SOIC-16-40℃~+125℃ 1 25ns@4.5V,50pF 30MHz 4.5V~5.5V 500mW 6mA 74HCT 8 Serial-to-Serial or Parallel Tri-State SOIC-16 Shift Registers ROHSNexperiaShift Registers
CJL2301
SOT-23-6L-55℃~+150℃ 2 P-Channel 2.3A 20V 350mW 400mV 405pF 5.5nC@4.5V 55pF 90mΩ@4.5V SOT-23-6L MOSFETs ROHSJiangsu Changjing Electronics Technology (CJ)MOSFETsHSW6822
SOT-23-6L-55℃~+150℃ 1.2V 1.7W 2 N-Channel 20V 22mΩ@4.5V 480pF 5A 6.5nC@4.5V 63pF 69pF N-Channel SOT-23-6L MOSFETs ROHSHUASHUOMOSFETs
3296W-1-103LF
插件-3P,9.5x4.9mm10kΩ 28 500mW ±10% ±150ppm/℃ Plugin-3P,9.5x4.9mm Potentiometers, Variable Resistors ROHSjieerruiPotentiometers & Variable Resistors
README
README.mdCybdoClock!!
14 by 14 letter word clock / calendar / whatever, powered by esp32-c6!
Word clocks are arguably better and cooler than normal analog or digital clocks, but they are way too expensive comercially for a decent product, and even then there's not much customisation to it (the only one i could find was over 1000 dollars and could only show the time in 5 minute increments). CybdoClock was made to be able to show time down to the minute, in multiple formats, all while being customisable and allowing for different uses. The face plate can be swapped to show different languages or formats, and a calendar faceplate is coming soon!
zine page
pdf at ./zine.pdf
Features
- native wifi, bluetooth and matter over thread capabilities
- support for custom faceplates with an easy to update firmware dict
- NTP time sync via wifi
- wall-mountable via command strips
- stand included for desktop use
Assembly
The housing requires 4x M3 screws, as well as 4x M3 heat-set inserts, and 4x 5mm diameter, 2.5mm thick magnets. Each faceplate also requires 4x 4x 5mm diameter, 2.5mm thick magnets, in the opposite polarity to the housing. Magnets should be able to friction fit and stay in place, however a drop of superglue can aid in its placement.
Usage
- flash circuitpython 10 onto the ESP-32 via USB-C.
- Copy the firmware folder onto the CIRCUITPY drive, and create settings.toml using settings.toml.example.
- install all requirements in requirements.txt using
circup install -r requirements.txt
CybdoClock will now turn on and sync to NTP once connected to a USB power source!
Firmware
CybdoClock runs off CircuitPython 10.x, and code can be found under ./firmware/
Technical Documentation
CybdoClock is powered by a 14x14 LED matrix. NOTE: CybdoClock refreshes vertically, and defaults to left -> right. This is a hardware limitation, and overrides in firmware could cause permanent damage to components.
Shift Registers
While the provided firmware uses the adafruit library and pins, a custom firmware can interface with the pins by sending the following serial data:
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Row 14 | Row 13 | Row 12 | Row 11 | Row 10 | Row 9 | Row 8 | NC | Row 7 | Row 6 | Row 5 | Row 4 | Row 3 | Row 2 | Row 1 | NC | Col 14 | Col 13 | Col 12 | Col 11 | Col 10 | Col 9 | Col 8 | NC | Col 7 | Col 6 | Col 5 | Col 4 | Col 3 | Col 2 | Col 1 | NC |
Schematics
Please note - the net labels for columns and rows do not reflect their physical layouts, nor does the layout of the matrix in the schematic
a pdf can be found at ./schematics.pdf
PCB
Acknowledgements
Parts
237| Qty | Value | Footprint | References |
|---|---|---|---|
| 196 | LED | LED_THT:LED_D5.0mm | D1, D10, D11, D100, D101, D102, D103, D104, D105, D106, D107, D108, D109, D110, D111, D112 +180 |
| 14 | 220R | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15 |
| 7 | CJL2301 | easyeda2kicad:SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL | Q1, Q2, Q3, Q4, Q5, Q6, Q7 |
| 7 | HSW6822 | easyeda2kicad:SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL | Q8, Q9, Q10, Q11, Q12, Q13, Q14 |
| 4 | 74HCT595 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U2, U3, U4, U5 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 1 | 100nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C1 |
| 1 | 28kR | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1 |
| 1 | 3296W-1-103LF | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV1 |
| 1 | ALS-PDIC144-6C/L378 | LED_THT:LED_D3.0mm | D197 |
| 1 | XIAO-ESP32-C6-DIP | imports:XIAO-ESP32-C6-DIP | U1 |
Questions
How big is the CybdoClock PCB?
It measures 155 × 155 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CybdoClock use?
237 parts, built around the ALS-PDIC144-6C/L378, 74HCT595D, CJL2301 and HSW6822. 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 CybdoClock KiCad files?
From the Cybdo/CybdoClock repository on GitHub, at the commit this page was made from: the board is PCB/CybdoClock.kicad_pcb and its schematic PCB/CybdoClock.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the CybdoClock 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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