4 layers120 × 120 mm
2 layers105.4 × 91.4 mm
Wordclock pcb
fblang/wordclock-pcbSchematic and PCB driving the LED's for a wordclock.
- Size
- 105.4 × 91.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 39
- Nets
- 97
- Pads
- 242
- Tracks, vias
- 412, 26
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 8 Nov 2019
- Updated
- 2 Dec 2019
Overview
Wordclock pcb is an open-source printed circuit board by fblang, from the fblang/wordclock-pcb repository on GitHub. It is a 2-layer board of 105.4 × 91.4 mm with 39 parts on 97 nets, routed with 412 tracks and 26 vias.
It is built around the ATMEGA328-PU and ULN2803A. Its parts include 9 capacitors, 9 ICs, 4 connectors, 4 switches and 3 resistors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2
ATMEGA328-PU
PDIP-28-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH PDIP-28 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
ULN2803A
SOP-18-300mil-40℃~+85℃ 0.93mA 100uA 15pF 20uA 30V 500mA 50V 8 SOP-18-300mil Darlington Transistor Arrays ROHSUMWDarlington Transistor Arrays
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100nF | Capacitors_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C2, C3, C4, C5, C8, C9 |
| 4 | 1pin | Connectors:1pin | , , , |
| 3 | MY74HC595 | Housings_DIP:DIP-16_W7.62mm_LongPads | U1, U2, U3 |
| 3 | MYSWITCH_reduced | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | SW2, SW3, SW4 |
| 3 | ULN2803A | Housings_DIP:DIP-18_W7.62mm_Socket_LongPads | U4, U5, U6 |
| 2 | 1k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R3 |
| 2 | 22pF | Capacitors_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C6, C7 |
| 2 | 2N3904 | TO_SOT_Packages_THT:TO-92_Inline_Wide | Q1, Q2 |
| 1 | 10-20k | Potentiometers:Potentiometer_Trimmer_ACP_CA9v_Horizontal_Px10.0mm_Py5.0mm | RV1 |
| 1 | 10k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 10uF | Capacitors_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C1 |
| 1 | 16MHz | Crystals:Crystal_HC49-4H_Vertical | Y1 |
| 1 | ATmega328P | Housings_DIP:DIP-28_W7.62mm_Socket_LongPads | IC1 |
| 1 | LCDHD44780 | Pin_Headers:Pin_Header_Straight_1x16_Pitch2.54mm | U8 |
| 1 | MYDS3231 | Pin_Headers:Pin_Header_Straight_1x06_Pitch2.54mm | U7 |
| 1 | MYSWITCH2 | Button_Switch_THT:SW_TH_Tactile_Omron_B3F-10xx | SW1 |
| 1 | MYUSBCONN5 | Pin_Headers:Pin_Header_Straight_1x05_Pitch2.54mm | J1 |
| 1 | Stecker 1 | Pin_Headers:Pin_Header_Straight_2x05_Pitch2.54mm | J2 |
| 1 | Stecker 2 | Pin_Headers:Pin_Header_Straight_2x05_Pitch2.54mm | J3 |
| 1 | Stecker 3 | Pin_Headers:Pin_Header_Straight_2x05_Pitch2.54mm | J4 |
The 37 most common of 39 parts.
Questions
How big is the Wordclock pcb PCB?
It measures 105.4 × 91.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Wordclock pcb use?
39 parts, built around the ATMEGA328-PU and ULN2803A. 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 Wordclock pcb KiCad files?
From the fblang/wordclock-pcb repository on GitHub, at the commit this page was made from: the board is wordclock_pcb.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Wordclock pcb design in my own project?
Its repository states no licence, so its author keeps all rights: ask fblang before reusing the design.
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