4 layers21.6 × 401 mm
2 layers42 × 24 mm
ST-Link V2.1 clone
- Size
- 42 × 24 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 56
- Nets
- 39
- Pads
- 181
- Tracks, vias
- 853, 102
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 27 Apr 2017
- Updated
- 29 Sep 2026
Overview
Teco is an open-source printed circuit board by Kreyl, from the Kreyl/TecoStLink repository on GitHub. It is a 2-layer board of 42 × 24 mm with 56 parts on 39 nets, routed with 853 tracks and 102 vias.
It is built around the STM32F103CBT6, BC848 and IRLML9303, with the LD1117 and PMEG2020EH among its other parts. Its parts include 21 resistors, 13 capacitors, 8 diodes, 3 transistors and 1 switch. It belongs with the STM32 boards of this library.
Main components
5
STM32F103CBT6
LQFP-48(7x7)-40℃~+85℃ 128KB 12bit 20KB 2V~3.6V 32 Bit 37 72MHz ARM Cortex-M3 Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
BC848
SOT-23SOT-23 Bipolar (BJT) ROHSTDDBipolar (BJT)IRLML9303
SOT-23MOSFETsLeiditechLD1117
UncategorisedSTMicroelectronics
PMEG2020EH
SOD-123F1 Independent 200uA@20V 20V 2A 525mV@2A 9A SOD-123F Schottky Diodes ROHSNexperiaSchottky Diodes
Parts
56| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 0.1u | Capacitors:CAP_0603 | C3, C4, C5, C6, C7, C12 |
| 6 | 10k | Resistors:RES_0603 | R1, R3, R12, R13, R17, R22 |
| 6 | 22R | Resistors:RES_0603 | R5, R6, R18, R19, R20, R21 |
| 4 | 1k | Resistors:RES_0603 | R10, R11, R15, R16 |
| 4 | PESD3V3 | Diodes:SOD323 | D5, D6, D7, D8 |
| 3 | LED | LEDs:LED_0603 | D1, D2, D3 |
| 2 | 100k | Resistors:RES_0603 | R7, R14 |
| 2 | 18pF | Capacitors:CAP_0603 | C10, C11 |
| 2 | 1u | Capacitors:CAP_0603 | C8, C9 |
| 2 | BC848 | SOT:SOT23-3 | Q1, Q2 |
| 1 | 10n | Capacitors:CAP_0603 | C13 |
| 1 | 10u | Capacitors:CAP_0603 | C1 |
| 1 | 1M | Resistors:RES_0603 | R23 |
| 1 | 1k5 | Resistors:RES_0603 | R4 |
| 1 | 2R0 | Resistors:RES_0603 | R2 |
| 1 | 2u2 | Capacitors:CAP_0603 | C2 |
| 1 | 8MHz | Quartz:0503x4-4 | XTAL1 |
| 1 | 90R | Inductors:DLW21SN | L1 |
| 1 | BUTTON | BtnsSwitches:BTN_4x4_SMD | SW1 |
| 1 | CONN_2 | Connectors:PBS-2R-MIRR | XL4 |
| 1 | CONN_4 | Connectors:PLS-4 | XL2 |
| 1 | CONN_6 | Connectors:PBS-6R-MIRR | XL3 |
| 1 | HOLE_METALLED | PCB:Hole3_5_out6mm | HOLE5 |
| 1 | IRLML9303 | SOT:SOT23-3 | Q3 |
| 1 | LD1117 | SOT:SOT223 | DA1 |
| 1 | Logo | Pictures:Ostranna_12d7_10d1 | Logo1 |
| 1 | PMEG2020 | Diodes:SOD323 | D4 |
| 1 | STM32F103CB | LQFP_TQFP:LQFP48 | DD1 |
| 1 | USB_MICRO_2H | Connectors:USBmicro_MOLEX_1050170001 | XL1 |
Questions
How big is the Teco PCB?
It measures 42 × 24 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Teco use?
56 parts, built around the STM32F103CBT6, BC848, IRLML9303 and LD1117. 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 Teco KiCad files?
From the Kreyl/TecoStLink repository on GitHub, at the commit this page was made from: the board is Teco.kicad_pcb and its schematic Teco.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Teco design in my own project?
Its repository states no licence, so its author keeps all rights: ask Kreyl before reusing the design.
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