2 layers50 × 33.5 mm
Bridge rectifier
Mo-Kara/kicad-learning-projects
KiCad practice boards recreated from public tutorials while learning PCB design
10 parts
2 layers36.9 × 16.9 mm
Tiny solar supply
Mo-Kara/kicad-learning-projectsKiCad practice boards recreated from public tutorials while learning PCB design
- Size
- 36.9 × 16.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 8
- Pads
- 36
- Tracks, vias
- 114, 11
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 23 Oct 2026
- Updated
- 23 Oct 2026
Overview
Tiny solar supply is an open-source printed circuit board by Mo-Kara, from the Mo-Kara/kicad-learning-projects repository on GitHub. It is a 2-layer board of 36.9 × 16.9 mm with 17 parts on 8 nets, routed with 114 tracks and 11 vias.
It is built around the AP3015AKTR-G1, SS14 and ASPI-0630LR-100M-T15. Its parts include 4 resistors, 4 connectors, 3 capacitors, 2 diodes and 1 IC. It belongs with the power boards of this library.
Main components
3
AP3015AKTR-G1
SOT-23-5-40℃~+85℃ 1 100mA 17uA 1V~12V 3.3V Boost Boost Built-in Fixed No SOT-23-5 DC-DC Converters ROHSDiodes IncorporatedDC-DC Converters
SS14
SMA(DO-214AC)-55℃~+150℃ 1A 25A 300uA@40V 40V 550mV@1A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
ASPI-0630LR-100M-T15
SMD,7.2x6.7mm10uH 4A 5.5A 68mΩ ±20% SMD,7.2x6.7mm Power Inductors ROHSAbraconPower Inductors
README
README.mdKiCad Learning Projects
Practice boards I recreated in KiCad while learning schematic capture, footprints, PCB layout and fabrication output. These are learning projects: the designs were reproduced from public tutorials and open designs, not original work. The goal was to practise the workflow and to understand each circuit, not to claim the designs.
Projects
Tiny solar supply (tiny-solar-supply)
Solar-powered 3.3 V boost converter built around the AP3015 (output set by the 1 MΩ / 604 kΩ feedback divider), with a 2N7002 switch, SS14 Schottky diodes and SMD parts. I reviewed the layout and noted improvements for a Rev B (switching loop, feedback routing, ground plane, output switch-off).
Breadboard power supply (breadboard-power-supply)
LM317 adjustable supply with 3.3 V / 5 V header outputs, power LED, slide switch and screw terminals. Includes Gerber files.
Bridge rectifier (bridge-rectifier)
Four 1N4007 diodes, a 1000 µF smoothing capacitor and a 10 kΩ bleeder resistor and an LED indicator (2.2 kΩ) on a through-hole board with screw terminals.
LED torch (led-torch)
CR2032 coin-cell LED light with push button and series resistor. Includes Gerber files.
Work in progress
arduino-nano-board: custom Arduino Nano footprint practice (no complete board yet).mcu-datalogger: early project files for an MCU data logger (not finished).
Notes
- Made with KiCad 9. Open the
.kicad_profile in each folder. - Custom symbol and footprint libraries were downloaded separately and are not included, so KiCad may report missing libraries on first open.
- Source links for the original designs: to be added per project.
Author
Mohanad Al-Karajeh, Systems Engineering student, Graz.
Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | J1, J2, J4 |
| 2 | 1 MOhm | Resistor_SMD:R_0805_2012Metric | R1, R4 |
| 2 | SS14 | Diode_SMD:D_SMA | D1, D2 |
| 1 | 10 KOhm | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | 10 pF, 50 V, X7R (0805) | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 22 uF, 10 V, X7R (1206) | Capacitor_SMD:C_1206_3216Metric | C2 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | 4.7 uF, 50 V, X7R (0805) | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 604 KOhm 1% | Resistor_SMD:R_0805_2012Metric | R2 |
| 1 | AP3015AKTR-G1 | tinysolarfootprint:AP3015AKTR_G1 | U1 |
| 1 | ASPI-0630LR-100M-T15 | tinysolarfootprint:IND_ASPI-0630LR_ABR-L | L1 |
| 1 | Conn_01x02_Pin | Button_Switch_THT:SW_DIP_SPSTx01_Slide_9.78x4.72mm_W7.62mm_P2.54mm | J3 |
The 16 most common of 17 parts.
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Questions
How big is the Tiny solar supply PCB?
It measures 36.9 × 16.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Tiny solar supply use?
17 parts, built around the AP3015AKTR-G1, SS14 and ASPI-0630LR-100M-T15. 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 Tiny solar supply KiCad files?
From the Mo-Kara/kicad-learning-projects repository on GitHub, at the commit this page was made from: the board is tiny-solar-supply/Tiny solar supply.kicad_pcb and its schematic arduino-nano-board/arduino_nano.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Tiny solar supply design in my own project?
Its repository states no licence, so its author keeps all rights: ask Mo-Kara before reusing the design.