2 layers327.9 × 139 mm
Coco2
baldengineer/bit-preserve
Project for capturing vintage, classic, aka old computer schematics in KiCad.
147 parts446
2 layers28.5 × 28 mm
StemToyTutorial
yahyazoom17/stemtoy-pcb- Size
- 28.5 × 28 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 8
- Pads
- 22
- Tracks, vias
- 30, 1
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 18 Jun 2026
- Updated
- 18 Jun 2026
Overview
StemToyTutorial is an open-source printed circuit board by yahyazoom17, from the yahyazoom17/stemtoy-pcb repository on GitHub. It is a 2-layer board of 28.5 × 28 mm with 10 parts on 8 nets, routed with 30 tracks and 1 via.
It is built around the NE555P.
Main components
1README
README.mdstemtoy-pcb
The final PCB for StemToy project
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | LOGO | LOGO | G***, G*** |
| 1 | 100uF | Capacitor_THT:C_Radial_D8.0mm_H11.5mm_P3.50mm | + 100uF - |
| 1 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P15.24mm_Horizontal | 10K |
| 1 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P15.24mm_Horizontal | 1K |
| 1 | 1nF | Capacitor_THT:C_Disc_D9.0mm_W5.0mm_P10.00mm | 1nF |
| 1 | Battery | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | + BAT - |
| 1 | Buzzer | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | + BUZZ - |
| 1 | Human | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | OUT |
| 1 | NE555P | Package_DIP:DIP-8_W7.62mm | IC 555 |
Questions
How big is the StemToyTutorial PCB?
It measures 28.5 × 28 mm and has 2 copper layers, 1.6 mm thick.
What parts does the StemToyTutorial use?
10 parts, built around the NE555P. 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 StemToyTutorial KiCad files?
From the yahyazoom17/stemtoy-pcb repository on GitHub, at the commit this page was made from: the board is StemToyTutorial.kicad_pcb and its schematic StemToyTutorial.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the StemToyTutorial design in my own project?
Its repository states no licence, so its author keeps all rights: ask yahyazoom17 before reusing the design.
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