

Stlink extend
- Size
- 70 × 25 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 21
- Pads
- 90
- Tracks, vias
- 111, 29
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 5 Jun 2026
- Updated
- 11 Jun 2026
Overview
Stlink extend is an open-source printed circuit board by edometro, from the edometro/stlink-extend repository on GitHub. It is a 2-layer board of 70 × 25 mm with 26 parts on 21 nets, routed with 111 tracks and 29 vias.
Its parts include 6 capacitors, 6 connectors, 5 resistors, 3 ICs and 2 diodes.
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3, C4, C5, C6 |
| 5 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4, R5 |
| 4 | PinSocket_1x02_P2.54mm_Vertical | PinSocket_1x02_P2.54mm_Vertical | CN3, CN11, CN12, JP1 |
| 2 | D_SOD-323_HandSoldering | D_SOD-323_HandSoldering | D1, D2 |
| 1 | Converter_DCDC_XP_POWER-IAxxxxS_THT | Converter_DCDC_XP_POWER-IAxxxxS_THT | U1 |
| 1 | Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | JST_XA_B04B-XASK-1_1x04_P2.50mm_Vertical | JST_XA_B04B-XASK-1_1x04_P2.50mm_Vertical | CN_OUT2 |
| 1 | JST_XH_B6B-XH-A_1x06_P2.50mm_Vertical | JST_XH_B6B-XH-A_1x06_P2.50mm_Vertical | CN_OUT1 |
| 1 | PinSocket_1x04_P2.54mm_Vertical | PinSocket_1x04_P2.54mm_Vertical | CN2 |
| 1 | PinSocket_1x06_P2.54mm_Vertical | PinSocket_1x06_P2.54mm_Vertical | CN4 |
| 1 | SOIC-16W_7.5x10.3mm_P1.27mm | SOIC-16W_7.5x10.3mm_P1.27mm | U3 |
| 1 | SOIC-8_3.9x4.9mm_P1.27mm | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | SW_Slide_SPDT_Straight_CK_OS102011MS2Q | SW_Slide_SPDT_Straight_CK_OS102011MS2Q | SW1 |
Questions
How big is the Stlink extend PCB?
It measures 70 × 25 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Stlink extend use?
26 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 Stlink extend KiCad files?
From the edometro/stlink-extend repository on GitHub, at the commit this page was made from: the board is stlink-extend.kicad_pcb and its schematic stlink-extend.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Stlink extend design in my own project?
Its repository states no licence, so its author keeps all rights: ask edometro before reusing the design.
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