2 layers254.1 × 87.2 mm
2 layers210.2 × 94.3 mm
Humla
jimmerricks/humla85The Humla is a 36-key low profile keyboard based on the Reviung by gtips and the Rev-lp by cyril279. It is for choc switches (with 18x17mm spacing) and has basic support for bluetooth pro micro alternatives such as the…
- Size
- 210.2 × 94.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 85
- Nets
- 60
- Pads
- 298
- Tracks, vias
- 357, 6
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 10 Nov 2021
- Updated
- 25 Jan 2024
Overview
Humla is an open-source printed circuit board by jimmerricks, from the jimmerricks/humla repository on GitHub, published under the MIT licence. It is a 2-layer board of 210.2 × 94.3 mm with 85 parts on 60 nets, routed with 357 tracks and 6 vias.
Its parts include 38 switches, 36 diodes and 1 IC. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdHumla
The Humla is a 36-key low profile keyboard based on the Reviung by gtips and the Rev-lp by cyril279. It is for choc switches (with 18x17mm spacing) and has basic support for bluetooth pro micro alternatives such as the nRFMicro. Humla means blumblebee in Swedish.
3D printed cases
Parts
85| Qty | Value | Footprint | References |
|---|---|---|---|
| 36 | D_Small | humla:D3_SMD | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +20 |
| 36 | SW_Push | humla:Choc | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +20 |
| 9 | h2 | humla:M2_hole_3.5mm | h2, h2, h2, h2, h2, h2, h2, h2, h2 |
| 1 | Battery_Cell | humla:Battery_pads | BT1 |
| 1 | ProMicro | humla:ArduinoProMicro | U1 |
| 1 | Reset | humla:Reset | SW37 |
| 1 | SW_SPDT | humla:power_switch | SW38 |
Questions
How big is the Humla PCB?
It measures 210.2 × 94.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Humla use?
85 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 Humla KiCad files?
From the jimmerricks/humla repository on GitHub, at the commit this page was made from: the board is pcb/humla.kicad_pcb and its schematic pcb/humla.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Humla 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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