2 layers20.5 × 24.8 mm
2 layers84.5 × 28.5 mm
- Size
- 84.5 × 28.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 37
- Pads
- 64
- Tracks, vias
- 85, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 1 Dec 2025
- Updated
- 1 Dec 2025
Overview
Chr-1 is an open-source printed circuit board by HisarCS, from the HisarCS/VariablePitchPropeller repository on GitHub, published under the MIT licence. It is a 2-layer board of 84.5 × 28.5 mm with 8 parts on 37 nets, routed with 85 tracks and 0 vias.
Its parts include 6 connectors and 1 capacitor. It belongs with the ESP32 and RISC-V boards of this library.
README
README.mdVariablePitchPropeller
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | PinHeader_01x02_P2.54mm_Horizontal_SMD | fab:PinHeader_01x02_P2.54mm_Horizontal_SMD | J6, J7 |
| 2 | PinHeader_01x08_P2.54mm_Vertical_THT_D1.4mm | Connector_PinSocket_1.00mm:PinSocket_1x08_P1.00mm_Vertical_SMD_Pin1Left | J1, J2 |
| 1 | 12V bat | fab:PinSocket_01x02_P2.54mm_Vertical_SMD | J4 |
| 1 | C_1206 | fab:C_1206 | C1 |
| 1 | Module_XIAO-ESP32C3 | fab:SeeedStudio_XIAO_ESP32C3 | M2 |
| 1 | PinHeader_01x03_P2.54mm_Horizontal_SMD | fab:PinHeader_01x03_P2.54mm_Horizontal_SMD | J5 |
Questions
How big is the Chr-1 PCB?
It measures 84.5 × 28.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Chr-1 use?
8 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 Chr-1 KiCad files?
From the HisarCS/VariablePitchPropeller repository on GitHub, at the commit this page was made from: the board is Chr-1.kicad_pcb and its schematic Chr-1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Chr-1 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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