2 layers
2 layers44.4 × 69.9 mm
FlipFlop
okoz/electronicsRandom things related to electronics
- Size
- 44.4 × 69.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 8
- Pads
- 28
- Tracks, vias
- 38, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 28 Feb 2020
- Updated
- 2 Nov 2026
Overview
FlipFlop is an open-source printed circuit board by okoz, from the okoz/electronics repository on GitHub. It is a 2-layer board of 44.4 × 69.9 mm with 11 parts on 8 nets, routed with 38 tracks and 0 vias.
Its parts include 4 resistors, 2 diodes, 2 transistors, 2 switches and 1 connector.
README
flip-flop/README.mdFlip-Flop
Storage for 1-bit of information but only when it's sunny:
Here are some photos half way through assembly along with a screenshot from KiCad. Behold the red solder mask! This is the first board I've ever etched.
| Front | PCB | Back |
|---|---|---|
 |  |  |
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 2N7000 | Package_TO_SOT_THT:TO-92_Inline | Q1, Q2 |
| 2 | 470 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R4 |
| 2 | 7k5 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R3 |
| 2 | LED | LED_THT:LED_D5.0mm | D1, D2 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH-12mm | SW1, SW2 |
| 1 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J1 |
Questions
How big is the FlipFlop PCB?
It measures 44.4 × 69.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the FlipFlop use?
11 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 FlipFlop KiCad files?
From the okoz/electronics repository on GitHub, at the commit this page was made from: the board is flip-flop/FlipFlop.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the FlipFlop design in my own project?
Its repository states no licence, so its author keeps all rights: ask okoz before reusing the design.
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