2 layers
2 layers91 × 33 mm
Latch
djarky/PCBsVarious PCBs
- Size
- 91 × 33 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 12
- Pads
- 53
- Tracks, vias
- 117, 2
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Jun 2025
- Updated
- 16 Apr 2026
Overview
Latch is an open-source printed circuit board by djarky, from the djarky/PCBs repository on GitHub. It is a 2-layer board of 91 × 33 mm with 17 parts on 12 nets, routed with 117 tracks and 2 vias.
Its parts include 6 resistors, 4 switches, 3 connectors, 2 diodes and 1 IC.
README
README.mdPCBs
Various PCBs
- game controller based on digispark
- clap switch with relay
- amps?
- others
Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1K | Resistor_THT:R_Axial_DIN0414_L11.9mm_D4.5mm_P20.32mm_Horizontal | R2, R3, R4, R5 |
| 2 | 330 | Resistor_THT:R_Axial_DIN0414_L11.9mm_D4.5mm_P20.32mm_Horizontal | R1, R6 |
| 2 | LED | LED_THT:LED_D4.0mm | D1, D2 |
| 2 | RESET | Button_Switch_THT:SW_PUSH-12mm_Wuerth-430476085716 | SW2, SW4 |
| 2 | SET | Button_Switch_THT:SW_PUSH-12mm_Wuerth-430476085716 | SW1, SW3 |
| 1 | 7400 | Package_DIP:DIP-14_W10.16mm_LongPads | U1 |
| 1 | A | Connector_PinHeader_2.54mm:PinHeader_2x01_P2.54mm_Vertical | J2 |
| 1 | B | Connector_PinHeader_2.54mm:PinHeader_2x01_P2.54mm_Vertical | J3 |
| 1 | LOGO | LOGO | logo_arky |
| 1 | PWR | Connector_PinHeader_2.54mm:PinHeader_2x01_P2.54mm_Vertical | J1 |
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Questions
How big is the Latch PCB?
It measures 91 × 33 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Latch use?
17 parts. 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 Latch KiCad files?
From the djarky/PCBs repository on GitHub, at the commit this page was made from: the board is inputs/latch/latch.kicad_pcb and its schematic AMP_ANT/AMP_manny.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Latch design in my own project?
Its repository states no licence, so its author keeps all rights: ask djarky before reusing the design.