4 layers70 × 54 mm
2 layers89 × 62 mm
ObsidianHub
LostInCompilation/ObsidianHubSmart Home Dashboard with Environmental Sensors
- Size
- 89 × 62 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 37
- Nets
- 27
- Pads
- 134
- Tracks, vias
- 480, 49
- Pours
- 91
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 12 Dec 2025
- Updated
- 18 Jan 2026
Overview
ObsidianHub is an open-source printed circuit board by LostInCompilation, from the LostInCompilation/ObsidianHub repository on GitHub. It is a 2-layer board of 89 × 62 mm with 37 parts on 27 nets, routed with 480 tracks and 49 vias.
It is built around the SN74LVC1T45DBV. Its parts include 11 capacitors, 10 ICs, 6 resistors, 3 diodes and 3 switches. It belongs with the ESP32 and RISC-V boards of this library.
Main components
1README
README.mdObsidianHub
ToDo
Parts
37| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100nF 25V | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2, C3, C4, C5, C6, C7, C10 |
| 5 | 10k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R2, R3, R4, R5, R6 |
| 5 | SN74LVC1T45DBV | Package_TO_SOT_SMD:SOT-23-6 | U5, U7, U8, U9, U10 |
| 4 | LOGO | LOGO | G***, G***, G***, G*** |
| 3 | SK6812 MINI-E | CustomLib:LED SK6812-MINI-E Cutout | LED1, LED2, LED3 |
| 2 | 10uF 25V | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C9, C11 |
| 2 | SW_Push | PCM_Switch_Keyboard_Cherry_MX:SW_Cherry_MX_PCB_1.00u | SW1, SW3 |
| 1 | 220uF 10V | Capacitor_THT:C_Radial_D6.3mm_H7.0mm_P2.50mm | C8 |
| 1 | 47R | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1 |
| 1 | AHT20 + BMP280 | CustomLib:MODULE_AHT20_BMP280 | U1 |
| 1 | BH1750 | CustomLib:BH1750 | U3 |
| 1 | ENS160/AHT21 | CustomLib:ENS160_AHT21_Module | U6 |
| 1 | ESP32-C3_SUPERMINI_SMD | ESP32_mini:MODULE_ESP32-C3_SUPERMINI | U2 |
| 1 | OLED 0.96" 128X64 | CustomLib:OLED 0.96 128x64 | U4 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW2 |
Questions
How big is the ObsidianHub PCB?
It measures 89 × 62 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ObsidianHub use?
37 parts, built around the SN74LVC1T45DBV. 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 ObsidianHub KiCad files?
From the LostInCompilation/ObsidianHub repository on GitHub, at the commit this page was made from: the board is PCB/ObsidianHub.kicad_pcb and its schematic PCB/ObsidianHub.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ObsidianHub design in my own project?
Its repository states no licence, so its author keeps all rights: ask LostInCompilation before reusing the design.
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