2 layers290.1 × 130 mm
2 layers
Hot finger
dBarmpxkos/hot-dotAn open-source smartphone pairing system for thermal Braille translation with automatic content detection and tagging
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 34
- Nets
- 88
- Pads
- 155
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 20 Apr 2026
- Updated
- 9 Oct 2026
Overview
Hot finger is an open-source printed circuit board by dBarmpxkos, from the dBarmpxkos/hot-dot repository on GitHub. It is a 2-layer board with 34 parts on 88 nets.
It is built around the RP2040. Its parts include 24 resistors, 8 transistors, 1 IC and 1 connector. It belongs with the RP2040 boards of this library.
Main components
1README
README.mdParts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 0402 ±1% 10K | easyeda2kicad:R0402 | R1, R2, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23 +8 |
| 8 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1 |
| 1 | USB_C_Receptacle_USB2.0 | akuto_component_library:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
Questions
What parts does the Hot finger use?
34 parts, built around the RP2040. 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 Hot finger KiCad files?
From the dBarmpxkos/hot-dot repository on GitHub, at the commit this page was made from: the board is hardware/hot_finger/hot_finger.kicad_pcb and its schematic hardware/hot_finger/hot_finger.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hot finger design in my own project?
Its repository states no licence, so its author keeps all rights: ask dBarmpxkos before reusing the design.
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