2 layers116.8 × 30 mm
Type d
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
14 parts3kApache-2.0
2 layers83.5 × 96 mm
This PCB is a Bistable Multivibrator in the shape of Sasuke from the anime Naruto. The LEDs change sides once a push switch gets pressed.
- Size
- 83.5 × 96 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 14
- Nets
- 8
- Pads
- 32
- Tracks, vias
- 58, 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 26 Mar 2026
- Updated
- 26 Mar 2026
Overview
Falstad is an open-source printed circuit board by angle-mad, from the angle-mad/Resolutions-Hardware-2 repository on GitHub. It is a 2-layer board of 83.5 × 96 mm with 14 parts on 8 nets, routed with 58 tracks and 1 via.
Its parts include 6 resistors, 2 diodes, 2 transistors, 2 switches and 1 connector.
README
README.mdSasuke Bistable Multivibrator
This PCB is a Bistable Multivibrator in the shape of Sasuke from the anime Naruto. The LEDs change sides once a push switch gets pressed. There are two push swithes and the LED changes to go to the side opposite to the pussh switch. The LEDs are supposed to represent Sasuke's sharingan eyes. I made this projet because I want to better my hardware skills and because Naruto is one of my favorite shows and it is interesting way to show a Multivibrator that works with the show.
Lapse
Simulation
The Bistable Multivibrator has two stable states. The circuit can stay in one of the two positions. This changes when a push switch is pressed. The push switch that is under the LED that is on will switch the state and cause the opposite LED to turn on.
Schematic
PCB
Parts
14| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 1k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R9, R10, R11, R12, R13, R14 |
| 2 | LED | LED_THT:LED_D5.0mm | D1, D3 |
| 2 | NPN | Package_TO_SOT_THT:TO-92L_Inline_Wide | Q1, Q3 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW2, SW3 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | LOGO | LOGO | G*** |
Questions
How big is the Falstad PCB?
It measures 83.5 × 96 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Falstad use?
14 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 Falstad KiCad files?
From the angle-mad/Resolutions-Hardware-2 repository on GitHub, at the commit this page was made from: the board is src/kicad/falstad.kicad_pcb and its schematic src/kicad/falstad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Falstad design in my own project?
Its repository states no licence, so its author keeps all rights: ask angle-mad before reusing the design.
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