4 layers95 × 60 mm
4 layers97 × 97.1 mm
ThermoBoard
npgo22/ALI2Proposal- Size
- 97 × 97.1 mm
- Copper layers
- 4
- Thickness
- 1.78 mm
- Parts
- 139
- Nets
- 108
- Pads
- 470
- Tracks, vias
- 538, 1,017
- Pours
- 81
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 29 May 2026
- Updated
- 9 Aug 2026
Overview
ThermoBoard is an open-source printed circuit board by npgo22, from the npgo22/ALI2Proposal repository on GitHub. It is a 4-layer board of 97 × 97.1 mm with 139 parts on 108 nets, routed with 538 tracks and 1,017 vias.
It is built around the LAN8742A-CZ, TJA1042T/3/1J and MAX31856, with the AP2112K-3.3, USBLC6-2SC6 and PCC-SMP-K-5-R among its other parts. Its parts include 51 capacitors, 28 resistors, 10 diodes, 9 ICs and 9 connectors. It belongs with the STM32 boards of this library.
Main components
9
LAN8742A-CZ
QFN-24-EP(4x4)0℃~+70℃ 1.8V~3.3V 10BASE-T、100BASE-TX 10Mbit/s、100Mbit/s Ethernet Transceiver RMII QFN-24-EP(4x4) Ethernet Transceivers ROHSMicrochip TechnologyEthernet Transceivers
TJA1042T/3/1J
SOIC-8-40℃~+150℃ 15uA 4.5V~5.5V 5Mbps 70mA SOIC-8 CAN Transceivers ROHSNXP SemiconductorsCAN Transceivers
MAX31856
UncategorisedMaxim Integrated (Analog Devices)
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
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)PCC-SMP-K-5-R
插件UncategorisedOMEGA Engineering, Inc
MM3Z10VT1GX
SOD-3231 Independent 100nA@7V 10V 300mW 60Ω 9.45V~10.55V ±5% SOD-323 Zener Diodes ROHSNexperiaZener Diodes
SKRPANE010
SMD-4P,4.2x3.2mm-40℃~+90℃ 1,000,000 cycles 1.57N 16V 2.5mm 3.2mm 4.2mm J-Lead Oval Button SPST Surface Mount,Vertical Without Bracket SMD-4P,4.2x3.2mm Tactile Switches ROHSALPSALPINETactile Switches
SI2371EDS
SOT-23-55℃~+150℃ 1 P-Channel 1.1W 1.5V 10.6nC@10V 30V 4.8A 45mΩ@10V SOT-23 MOSFETs ROHSVishay IntertechnologyMOSFETs
README
ground-station-thermocouples-1A/README.mdThermocouple Board 1A
These are the board files for the first revision of the thermocouple board for ALI. As can be seen in the schematic, the layout for the ethernet PHY is wrong. This was corrected with some jumper wires and hot glue. Because of the very similar architecture to the new layout, this board may be used in lieu of the completion of a second revision of the original thermocouple board.
Notion
Please see NOTION.md for a copy of the original notion page, sans comments
Parts
139| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 100n | Library:C_0402_1005Metric | C101, C102, C105, C110, C112, C113, C117, C202, C204, C205, C301, C304, C306, C307, C308, C309 +8 |
| 18 | 10k | Library:R_0402_1005Metric | R100, R101, R102, R103, R104, R107, R202, R203, R209, R210, R300, R301, R302, R303, R304, R305 +2 |
| 17 | TestPoint_Small | Library:TestPoint_Pad_D1.0mm | TP100, TP101, TP102, TP104, TP105, TP300, TP301, TP302, TP303, TP304, TP305, TP306, TP307, TP308, TP309, TP310 +1 |
| 9 | LED | LED_SMD:LED_0402_1005Metric | D100, D101, D102, D103, D105, D300, D301, D302, D303 |
| 8 | 10n | Library:C_0402_1005Metric | C300, C302, C303, C305, C310, C312, C313, C315 |
| 8 | 22u | Capacitor_SMD:C_0805_2012Metric | C100, C103, C106, C108, C114, C115, C116, C200 |
| 4 | 10p | Library:C_0402_1005Metric | C104, C107, C201, C203 |
| 4 | 47R | Library:R_0402_1005Metric | R204, R206, R207, R208 |
| 4 | MAX31856 | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U300, U301, U302, U303 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 4 | PCC-SMP-K-5 | Omega:PCCSMPK5 | J300, J301, J302, J303 |
| 3 | 1u | Library:C_0402_1005Metric | C118, C119, C206 |
| 3 | Jumper_2_Bridged | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP100, JP200, JP201 |
| 2 | 2u2 | Library:C_0402_1005Metric | C109, C111 |
| 2 | 5.1k | Library:R_0402_1005Metric | R105, R106 |
| 1 | 1.5k | Library:R_0402_1005Metric | R200 |
| 1 | 12.1k | Library:R_0402_1005Metric | R205 |
| 1 | 120R | Library:R_0402_1005Metric | R400 |
| 1 | 16MHz | Library:CRYSTAL-SMD_4P-L2.0-W1.6-BL | Y100 |
| 1 | 220n | Library:C_0402_1005Metric | C208 |
| 1 | 25MHz | Library:CRYSTAL-SMD_4P-L2.0-W1.6-BL | Y200 |
| 1 | 300mA | Library:Lute_16XR | F100 |
| 1 | 33R | Library:R_0402_1005Metric | R201 |
| 1 | 470p | Library:C_0402_1005Metric | C207 |
| 1 | 500mA | Library:Lute_16XR | F101 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U101 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J400 |
| 1 | Conn_01x05_Pin | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J100 |
| 1 | FerriteBead | Library:LSMGA160808T601RG | FB100 |
| 1 | LAN8742A | Library:VQFN-24-1EP_4x4mm_P0.5mm_EP2.5x2.5mm_ThermalVias | U200 |
| 1 | MM3Z10VT1G | Library:SOD-323 | D104 |
| 1 | RJ45_Hanrun_HR911105A_Horizontal | Library:RJ45_Hanrun_HR911105A_Horizontal | J200 |
| 1 | SKRPANE010 | lcsc_footprints:SW-SMD_4P-L4.2-W3.2-P2.15-LS4.6-2 | SW100 |
| 1 | STM32H563RITx | Package_QFP:LQFP-64_10x10mm_P0.5mm | U100 |
| 1 | Screw_Terminal_01x02 | Library:TerminalBlock_Phoenix_MPT-0,5-2-2.54_1x02_P2.54mm_Horizontal | J101 |
| 1 | Si2371EDS | Package_TO_SOT_SMD:SOT-23 | Q100 |
| 1 | TJA1042T-3 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U400 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U102 |
| 1 | USB_C_Receptacle_USB2.0_16P | Library:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J102 |
The 138 most common of 139 parts.
Questions
How big is the ThermoBoard PCB?
It measures 97 × 97.1 mm and has 4 copper layers, 1.78 mm thick.
What parts does the ThermoBoard use?
139 parts, built around the LAN8742A-CZ, TJA1042T/3/1J, MAX31856 and AP2112K-3.3. 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 ThermoBoard KiCad files?
From the npgo22/ALI2Proposal repository on GitHub, at the commit this page was made from: the board is ground-station-thermocouples-1A/ThermoBoard.kicad_pcb and its schematic chickenstick-locator-1A/Power.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ThermoBoard design in my own project?
Its repository states no licence, so its author keeps all rights: ask npgo22 before reusing the design.
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