2 layers
Nrf bga
github-linguist/linguist
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12 parts14kMIT
2 layers48 × 49 mm
my submission to the solder YSWS!
- Size
- 48 × 49 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 12
- Nets
- 6
- Pads
- 25
- Tracks, vias
- 44, 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 28 Jun 2025
- Updated
- 29 Jun 2025
Overview
Solder is an open-source printed circuit board by randomhumandownhere, from the randomhumandownhere/solder repository on GitHub. It is a 2-layer board of 48 × 49 mm with 12 parts on 6 nets, routed with 44 tracks and 3 vias.
Its parts include 4 resistors, 2 capacitors, 2 diodes and 2 transistors.
README
README.mdsolder
a battery powered cat keychain with blinking LEDs by @randomhumandownhere
bill of materials:
| Component | Quantity |
|---|---|
| CR2032 Battery Cell | 1x |
| 5mm LED | 2x |
| 220Ω Resistor | 2x |
| 4.7kΩ Resistor | 2x |
| 10µF Capacitor | 2x |
| 2N3904 Transistor | 2x |
pictures!
the pcb :3
some schematics
my simulation in the falstad circuit simulation applet
final pcb renders!
Parts
12| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4 |
| 2 | C | Capacitor_THT:CP_Radial_D8.0mm_P5.00mm | C1, C2 |
| 2 | LED | LED_THT:LED_D5.0mm | D1, D2 |
| 2 | NPN | Package_TO_SOT_THT:TO-92L_HandSolder | Q1, Q2 |
| 1 | Battery_Cell | Battery:BatteryHolder_Keystone_3034_1x20mm | BT1 |
| 1 | LOGO | LOGO | G*** |
Questions
How big is the Solder PCB?
It measures 48 × 49 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Solder use?
12 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 Solder KiCad files?
From the randomhumandownhere/solder repository on GitHub, at the commit this page was made from: the board is solder.kicad_pcb and its schematic solder.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Solder design in my own project?
Its repository states no licence, so its author keeps all rights: ask randomhumandownhere before reusing the design.
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