4 layers22.9 × 50.8 mm
Lg hvac esp32
JanM321/esphome-lg-controller
Wired controller for LG HVAC units using ESPHome and ESP32
20 parts2920BSD
2 layers77.5 × 15 mm
Lin tester
Bartek0x00/USRTLIN-PCB1PCB files and documentation for USRTLIN converter project
- Size
- 77.5 × 15 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 37
- Nets
- 54
- Pads
- 155
- Tracks, vias
- 302, 43
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 6 Jul 2026
- Updated
- 10 Jul 2026
Overview
Lin tester is an open-source printed circuit board by Bartek0x00, from the Bartek0x00/USRTLIN-PCB repository on GitHub, published under the MIT licence. It is a 2-layer board of 77.5 × 15 mm with 37 parts on 54 nets, routed with 302 tracks and 43 vias.
It is built around the STM32F042K6T6, TJA1027T/20 and USBLC6-2SC6, with the 1N4148WS among its other parts. Its parts include 13 capacitors, 8 resistors, 6 ICs, 5 diodes and 4 connectors. It belongs with the STM32 boards of this library.
Main components
4
STM32F042K6T6
LQFP-32(7x7)-40℃~+85℃ 1.65V~3.6V 12bit 26 32 Bit 32KB 48MHz 6KB ARM Cortex-M0 Built-in FLASH LQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
TJA1027T/20
SOIC-8-40℃~+150℃ 1 1 1.6mA 10uA 175mV 5V~18V Transceiver ±8kV SOIC-8 LIN Transceivers ROHSNXP SemiconductorsLIN Transceivers
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
1N4148WS
SOD-3231.25V@150mA 100V 150mA 1uA@75V 200mW 2A 4ns Independent SOD-323 Switching Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Switching Diodes
README
README.mdUSRTLIN-PCB
PCB files and documentation for USRTLIN converter project
PCB 3D Perspective
PCB 3D Orthogonal
PCB Schematic
PCB Front Copper (F.CU)
PCB Back Copper (B.CU)
Parts
37| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C3, C6, C7, C8, C9, C13 |
| 4 | 1.2k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5, R6, R7, R8 |
| 4 | 4.7u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4, C5, C11, C12 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R3 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9 |
| 1 | 1N4148WS | Diode_SMD:D_SOD-323 | D1 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4 |
| 1 | 1n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10 |
| 1 | ADuM1311 | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U7 |
| 1 | AP2127N-3.3 | Package_TO_SOT_SMD:SOT-23 | U3 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | Conn_01x05_Pin | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J3 |
| 1 | FerriteBead | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB1 |
| 1 | LED_GREEN | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D4 |
| 1 | LED_ORANGE | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3 |
| 1 | LED_RED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2 |
| 1 | LED_YELLOW | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D5 |
| 1 | MCP1799T-330H/TT | Package_TO_SOT_SMD:SOT-23 | U5 |
| 1 | STM32F042K6T6 | Package_QFP:LQFP-32_7x7mm_P0.8mm | U1 |
| 1 | Screw_Terminal_01x03 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1-3-3.81_1x03_P3.81mm_Horizontal | J2 |
| 1 | TJA1027T | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U6 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
Questions
How big is the Lin tester PCB?
It measures 77.5 × 15 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Lin tester use?
37 parts, built around the STM32F042K6T6, TJA1027T/20, USBLC6-2SC6 and 1N4148WS. 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 Lin tester KiCad files?
From the Bartek0x00/USRTLIN-PCB repository on GitHub, at the commit this page was made from: the board is hardware/lin_tester.kicad_pcb and its schematic hardware/lin_tester.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Lin tester design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
Similar boards
- 2 layers60 × 90 mm
- 2 layers37 × 70.9 mm
Opendiag
maximus64/opendiag-hardware
OpenDIAG - Open Source OBD2 Interface (Hardware)
148 parts5CERN-OHL-S-2.0 - 2 layers66 × 26 mm
Altimetro
Daniel-Alencar/MiniEasy
Esquemático KiCad 10 de um altímetro barométrico de recuperação dupla (apogeu + principal), equivalente em função ao Altus Metrum EasyMini: sensor barométrico, registro de voo em flash, dois canais pirotécnicos com…
56 parts - 2 layers84.6 × 79.8 mm
- 4 layers96 × 70 mm
Groundlark field head
naturalhazardscience/groundlark
Open source hardware for community-powered citizen science
38 partsMIT - 2 layers282.6 × 92 mm
Chavdai40
dvorak55/chavdai40
Challenge to Handle Acoustic-noise, Verify Drastic Abductive Implementation.
109 parts6MIT - 4 layers113 × 93.7 mm
Characterizer
patrickyeon/battery-characterizer
battery tester/characterizer hardware, firmware.
217 parts4