2 layers100 × 53.8 mm
10 layers91.4 × 40.6 mm
Diy digital clock
sandorex/diy-digital-clockDIY LED segment clock using DS1302 and ATTiny13a, with shift registers
- Size
- 91.4 × 40.6 mm
- Copper layers
- 10
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 46
- Pads
- 108
- Tracks, vias
- 156, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 14 Mar 2025
- Updated
- 15 Mar 2025
Overview
Diy digital clock is an open-source printed circuit board by sandorex, from the sandorex/diy-digital-clock repository on GitHub, published under the GPL-3.0 licence. It is a 10-layer board of 91.4 × 40.6 mm with 20 parts on 46 nets, routed with 156 tracks and 0 vias.
It is built around the ATTINY13A-PU, 74AHC595D and 74HC165D, with the DS1302 among its other parts. Its parts include 6 capacitors, 6 ICs, 4 resistors and 2 connectors. It belongs with the lEDs and displays boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATTINY13A-PU
DIP-8-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 6 64Byte 64Byte 8 Bit AVR Built-in FLASH DIP-8 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
74AHC595D
SOIC-16-40℃~+125℃ 1 170MHz 2V~5.5V 74AHC 8 8mA Serial-to-Serial or Parallel Tri-State SOIC-16 Shift Registers ROHSNexperiaShift Registers
74HC165D
SO-16-40℃~+125℃ 1 28ns@6V,50pF 2V~6V 35MHz 500mW 74HC 8 Parallel or Serial to Serial SOIC-16 Shift Registers ROHSNexperiaShift Registers
DS1302
SOP-8SOP-8 Real Time Clocks ROHSTDDReal Time Clocks
README
README.mddiy-digital-clock
DIY LED segment clock using DS1302 and ATTiny13a, with shift registers
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100nf | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C2, C3, C6 |
| 4 | 1K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2, R3, R4 |
| 2 | 100uf | Capacitor_THT:C_Radial_D6.3mm_H5.0mm_P2.50mm | C4, C7 |
| 2 | 74AHC595 | Package_DIP:DIP-16_W7.62mm | U1, U2 |
| 1 | 74HC165 | Package_DIP:DIP-16_W7.62mm | U3 |
| 1 | ATtiny13A-P | Package_DIP:DIP-8_W7.62mm | U4 |
| 1 | Buzzer | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BZ1 |
| 1 | DC IN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | DS1302 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | U5 |
| 1 | INPUT | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J1 |
| 1 | LM7805_TO220 | Package_TO_SOT_THT:TO-220-3_Vertical | U6 |
| 1 | ~ | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | Display1 |
Questions
How big is the Diy digital clock PCB?
It measures 91.4 × 40.6 mm and has 10 copper layers, 1.6 mm thick.
What parts does the Diy digital clock use?
20 parts, built around the ATTINY13A-PU, 74AHC595D, 74HC165D and DS1302. 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 Diy digital clock KiCad files?
From the sandorex/diy-digital-clock repository on GitHub, at the commit this page was made from: the board is diy-digital-clock.kicad_pcb and its schematic diy-digital-clock.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Diy digital clock design in my own project?
Its repository publishes it under the GPL-3.0 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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