
Duet switch tester
ai03-2725/duet-switch-tester
Switch tester designed for two of each switch for display and testability

A split ergonomic mechanical keyboard based on Lily58, crkbd and Sofle.
Qwail56 is an open-source printed circuit board by ixmachine, from the ixmachine/qwail56 repository on GitHub, published under the MIT licence. It is a 2-layer board of 145.7 × 109.3 mm with 79 parts on 64 nets, routed with 886 tracks and 129 vias.
It is built around the 1N4148W, CPG151101S11-16 and PJ-320A. Its parts include 31 switches, 29 diodes, 2 resistors, 1 IC and 1 connector. It belongs with the RP2040 boards of this library.
A split ergonomic mechanical keyboard based on Lily58, crkbd and Sofle.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 28 | 1N4148W | qwail56:D_SOD-123_switch_reversible | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +12 |
| 27 | CPG151101S11-16 | qwail56:CherryMX_Hotswap_1u_reversible | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +11 |
| 9 | MountingHole | qwail56:MountingHole_2.2mm_M2_Pad | H1, H2, H3, H4, H5, H6, H7, H8, H9 |
| 2 | 5k | qwail56:R_1206_3216Metric_reversible | R1, R2 |
| 2 | EVQWGD001 | qwail56:Encoder_Horizontal_EVQWGD001 | SW29, SW30 |
| 2 | SolderJumper | qwail56:SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm_NumberLabels_v2 | JP1, JP2 |
| 1 | 1N4148W | qwail56:D_SOD-123_reversible | D29 |
| 1 | CPG151101S11-16 | qwail56:CherryMX_Hotswap_1.5u_reversible | SW28 |
| 1 | EC11E | qwail56:Rotary_Encoder_EC11E_reversible | SW31 |
| 1 | PJ-320A | qwail56:Jack_3.5mm_PJ320A_reversible | J1 |
| 1 | Pico | qwail56:Pi_Pico_TH_reversible | U1 |
The 75 most common of 79 parts.
It measures 145.7 × 109.3 mm and has 2 copper layers, 1.6 mm thick.
79 parts, built around the 1N4148W, CPG151101S11-16 and PJ-320A. 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.
From the ixmachine/qwail56 repository on GitHub, at the commit this page was made from: the board is qwail56 v1/pcb/qwail56.kicad_pcb and its schematic qwail56 v1/pcb/qwail56.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
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).

ai03-2725/duet-switch-tester
Switch tester designed for two of each switch for display and testability




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