2 layers85 × 50 mm
DataAcquisitionUnit
RobertGawron/HardwareDataLogger
Data logger shield based on STM32+ESP32. Has: LCD, keyboard, WIFi, UART and SD card for data storage. Input is as pulse counter and UART communication.
70 parts6MIT
2 layers85 × 50 mm
HumanMachineInterface
RobertGawron/HardwareDataLogger6Data logger shield based on STM32+ESP32. Has: LCD, keyboard, WIFi, UART and SD card for data storage. Input is as pulse counter and UART communication.
- Size
- 85 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 58
- Pads
- 116
- Tracks, vias
- 126, 18
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 15 Oct 2020
- Updated
- 11 Aug 2026
Overview
HumanMachineInterface is an open-source printed circuit board by RobertGawron, from the RobertGawron/HardwareDataLogger repository on GitHub, published under the MIT licence. It is a 2-layer board of 85 × 50 mm with 28 parts on 58 nets, routed with 126 tracks and 18 vias.
Its parts include 4 capacitors, 4 resistors, 4 switches, 1 IC and 1 transistor. It belongs with the radio and wireless and home automation and IoT boards and the ESP32 and STM32 boards of this library.
README
Hardware/ProcessingAndStorage/README.md
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | TestPoint | TestPoint:TestPoint_Pad_D1.5mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8 |
| 4 | 1M | Resistor_SMD:R_0805_2012Metric | R1, R5, R6, R7 |
| 4 | SW_Push | Button_Switch_SMD:SW_SPST_PTS645Sx43SMTR92 | SW1, SW2, SW3, SW4 |
| 2 | 330n | Capacitor_SMD:C_0805_2012Metric | C2, C3 |
| 2 | 4u7 | Capacitor_SMD:C_0805_2012Metric | C1, C4 |
| 1 | LOGO | HumanMachineInterface:arrow-left-circle-line | G*** |
| 1 | LOGO | HumanMachineInterface:arrow-up-circle-line | G*** |
| 1 | LOGO | HumanMachineInterface:arrow-down-circle-line | G*** |
| 1 | LOGO | HumanMachineInterface:arrow-right-circle-line | G*** |
| 1 | Q_Photo_NPN | Package_TO_SOT_THT:TO-5-2 | Q1 |
| 1 | ST7735S | HumanMachineInterface:ST7735S | U2 |
| 1 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP2 |
| 1 | ~ | HardwareDataLogger:ExtensionConnector | J5 |
Questions
How big is the HumanMachineInterface PCB?
It measures 85 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the HumanMachineInterface use?
28 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 HumanMachineInterface KiCad files?
From the RobertGawron/HardwareDataLogger repository on GitHub, at the commit this page was made from: the board is Hardware/HumanMachineInterface/HumanMachineInterface.kicad_pcb and its schematic Hardware/DataAcquisitionUnit/DataAcquisitionUnit.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the HumanMachineInterface 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).
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