Clock module
About the Clock module
Clock module is an open source PCB design by Ottoputer, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 61.4 × 53.3 mm, with 26 components from 15 distinct parts.
Other key parts include the NE555P and 74LS00. By type, the board carries 9 resistors, 8 capacitors, 4 ICs, 2 switches, 1 connector and 1 diode.
From the project
DIY Clock Module powered by 555 Timers
https://github.com/user-attachments/assets/6f4d9207-cf31-4d4b-aec3-0dd87077b01e
Main components on the Clock module
Clock module bill of materials (BOM)
26 components, 15 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | NE555P | DIP-8_W7.62mm | U1, U2, U4 |
| 1 | 74LS00 | DIP-14_W7.62mm | U3 |
| 1 | USB_C_Receptacle_PowerOnly_6P | USB_C_Receptacle_GCT_USB4135-GF-A_6P_TopMnt_Horizontal | J1 |
| 1 | 1M | Potentiometer_Bourns_PTV09A-1_Single_Vertical | RV1 |
| 1 | SW_Push | SW_PUSH_6mm_H5mm | SW1 |
| 1 | SW_SPDT | DPDT-pushbutton | SW2 |
| 1 | BLUE | LED_D5.0mm | D1 |
| 1 | 10µF | CP_Radial_D5.0mm_P2.00mm | C1 |
| 3 | 0.1µF | C_Disc_D4.3mm_W1.9mm_P5.00mm | C2, C3, C6 |
| 3 | 0.01µF | C_Disc_D4.3mm_W1.9mm_P5.00mm | C4, C5, C8 |
| 1 | 1µF | CP_Radial_D5.0mm_P2.00mm | C7 |
| 5 | 1K | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R4, R7, R9 |
| 1 | 1M | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 2 | 5.1K | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5, R6 |
| 1 | 220 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R8 |
Clock module design files
The KiCad project lives in the Ottoputer/clock-module repository on GitHub; these links point at the commit this page was built from.
- Layoutclock-module.kicad_pcb
- Schematicclock-module.kicad_sch
Clock module: common questions
How big is the Clock module?
The Clock module measures 61.4 × 53.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Clock module?
26 components, from 15 distinct parts. The full bill of materials is listed on this page.
Where can I download the Clock module design files?
From the Ottoputer/clock-module repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Clock module design in my own project?
Yes, under the terms of its GPL-3.0 license, which Ottoputer chose for the repository.