

Trail
A copy of Promenade keyboard PCB
- Size
- 284.7 × 94.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 205
- Nets
- 132
- Pads
- 762
- Tracks, vias
- 1,001, 53
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 9 May 2024
- Updated
- 9 May 2024
Overview
Trail is an open-source printed circuit board by ThunderrGodd, from the ThunderrGodd/Trail repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 284.7 × 94.2 mm with 205 parts on 132 nets, routed with 1,001 tracks and 53 vias.
It is built around the WS2812B and BLM18KG121TN1D. Its parts include 70 diodes, 24 capacitors, 9 switches, 4 resistors and 1 IC. It belongs with the keyboards and input boards and the STM32 boards of this library.
Main components
2README
README.mdA copy of Promenade keyboard PCB, based on ChillKB's ice60v2.
It's still WIP, but I don't want to manage it anymore.
Working NEVER tested
Parts
205| Qty | Value | Footprint | References |
|---|---|---|---|
| 69 | D | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +53 |
| 19 | 100n | Capacitor_SMD:C_0402_1005Metric | C1, C5, C6, C7, C8, CRGB1, CRGB2, CRGB3, CRGB4, CRGB5, CRGB6, CRGB10, CRGB11, CRGB12, CRGB13, CRGB14 +3 |
| 14 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | RGB1, RGB2, RGB3, RGB4, RGB5, RGB6, RGB7, RGB8, RGB9, RGB10, RGB11, RGB12, RGB13, RGB14 |
| 8 | SPACE | marbastlib-mx:SW_MX_1u | MX60, MX61, MX62, MX63, MX64, MX65, MX74, MX75 |
| 3 | 1u | Capacitor_SMD:C_0402_1005Metric | C2, C3, C10 |
| 3 | 2U Stab | marbastlib-mx:STAB_MX_P_2u | S1, S2, S3 |
| 2 | 3U stab | marbastlib-mx:STAB_MX_P_3u | S4, S5 |
| 2 | 5.1K | Resistor_SMD:R_0603_1608Metric | R2, R3 |
| 1 | 0 | marbastlib-mx:SW_MX_1u | MX13 |
| 1 | 1 | marbastlib-mx:SW_MX_1u | MX2 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 10n | Capacitor_SMD:C_0402_1005Metric | C9 |
| 1 | 2 | marbastlib-mx:SW_MX_1u | MX3 |
| 1 | 3 | marbastlib-mx:SW_MX_1u | MX4 |
| 1 | 4 | marbastlib-mx:SW_MX_1u | MX5 |
| 1 | 4.7u | Capacitor_SMD:C_0402_1005Metric | C4 |
| 1 | 470R | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | 5 | marbastlib-mx:SW_MX_1u | MX6 |
| 1 | 5+ | marbastlib-mx:SW_MX_1u | MX7 |
| 1 | 6 | marbastlib-mx:SW_MX_1u | MX9 |
| 1 | 6+ | marbastlib-mx:SW_MX_1u | MX8 |
| 1 | 6U Stab | marbastlib-mx:STAB_MX_P_6u | S6 |
| 1 | 7 | marbastlib-mx:SW_MX_1u | MX10 |
| 1 | 7U Stab | marbastlib-mx:STAB_MX_P_7u | S7 |
| 1 | 8 | marbastlib-mx:SW_MX_1u | MX11 |
| 1 | 9 | marbastlib-mx:SW_MX_1u | MX12 |
| 1 | A | marbastlib-mx:SW_MX_1u | MX30 |
| 1 | APP | marbastlib-mx:SW_MX_1u | MX68 |
| 1 | B | marbastlib-mx:SW_MX_1u | MX48 |
| 1 | B+ | marbastlib-mx:SW_MX_1.5u | MX72 |
| 1 | B+ | marbastlib-mx:SW_MX_1u | MX49 |
| 1 | BACKSLASH | marbastlib-mx:SW_MX_1.5u | MX28 |
| 1 | BLM18KG121TN1D | PCM_Ferrite_SMD_AKL:Ferrite_0603_1608Metric | FB1 |
| 1 | BOOT | Button_Switch_SMD:SW_SPST_TL3342 | SW2 |
| 1 | C | marbastlib-mx:SW_MX_1u | MX46 |
| 1 | CAPS | marbastlib-mx:SW_MX_1.5u | MX29 |
| 1 | COMMA | marbastlib-mx:SW_MX_1u | MX52 |
| 1 | D | marbastlib-mx:SW_MX_1u | MX32 |
| 1 | E | marbastlib-mx:SW_MX_1u | MX18 |
| 1 | ENTER | marbastlib-mx:SW_MX_1u | MX41 |
| 1 | ESC | marbastlib-mx:SW_MX_1.5u | MX1 |
| 1 | F | marbastlib-mx:SW_MX_1u | MX33 |
| 1 | FWDSLASH | marbastlib-mx:SW_MX_1u | MX54 |
| 1 | G | marbastlib-mx:SW_MX_1u | MX34 |
| 1 | G+ | marbastlib-mx:SW_MX_1u | MX35 |
| 1 | I | marbastlib-mx:SW_MX_1u | MX23 |
| 1 | J | marbastlib-mx:SW_MX_1u | MX36 |
| 1 | JST_SH_SM04B-SRSS-TB_1x04 | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J1 |
| 1 | K | marbastlib-mx:SW_MX_1u | MX37 |
| 1 | L | marbastlib-mx:SW_MX_1u | MX38 |
| 1 | LED | marbastlib-mx:LED_MX_3mm-ROT | LED2 |
| 1 | L_ALT | marbastlib-mx:SW_MX_1u | MX59 |
| 1 | L_ALT_7u | marbastlib-mx:SW_MX_1.5u | MX76 |
| 1 | L_BRACKET | marbastlib-mx:SW_MX_1u | MX26 |
| 1 | L_CTRL | marbastlib-mx:SW_MX_1.5u | MX57 |
| 1 | L_GUI | marbastlib-mx:SW_MX_1u | MX58 |
| 1 | L_SHIFT | marbastlib-mx:SW_MX_1.5u | MX43 |
| 1 | M | marbastlib-mx:SW_MX_1u | MX51 |
| 1 | MINUS | marbastlib-mx:SW_MX_1.5u | MX14 |
| 1 | N | marbastlib-mx:SW_MX_1u | MX50 |
| 1 | N+ | marbastlib-mx:SW_MX_1.5u | MX73 |
| 1 | O | marbastlib-mx:SW_MX_1u | MX24 |
| 1 | P | marbastlib-mx:SW_MX_1u | MX25 |
| 1 | PERIOD | marbastlib-mx:SW_MX_1u | MX53 |
| 1 | Q | marbastlib-mx:SW_MX_1u | MX16 |
| 1 | QUOTE | marbastlib-mx:SW_MX_1u | MX40 |
| 1 | R | marbastlib-mx:SW_MX_1u | MX19 |
| 1 | RST | Button_Switch_SMD:SW_SPST_TL3342 | SW1 |
| 1 | R_ALT | marbastlib-mx:SW_MX_1u | MX66 |
| 1 | R_ALT_7u | marbastlib-mx:SW_MX_1.5u | MX77 |
| 1 | R_BRACKET | marbastlib-mx:SW_MX_1u | MX27 |
| 1 | R_CTRL | marbastlib-mx:SW_MX_1.5u | MX69 |
| 1 | R_GUI | marbastlib-mx:SW_MX_1u | MX67 |
| 1 | R_SHIFT | marbastlib-mx:SW_MX_1u | MX55 |
| 1 | R_SPLIT_BACKSPACE | marbastlib-mx:SW_MX_1.5u | MX42 |
| 1 | R_SPLIT_R_SHIFT | marbastlib-mx:SW_MX_1.5u | MX56 |
| 1 | S | marbastlib-mx:SW_MX_1u | MX31 |
| 1 | SEMICOLON | marbastlib-mx:SW_MX_1u | MX39 |
| 1 | STM32F072CBTx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | T | marbastlib-mx:SW_MX_1u | MX20 |
The 192 most common of 205 parts.
Questions
How big is the Trail PCB?
It measures 284.7 × 94.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Trail use?
205 parts, built around the WS2812B and BLM18KG121TN1D. 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 Trail KiCad files?
From the ThunderrGodd/Trail repository on GitHub, at the commit this page was made from: the board is Trail.kicad_pcb and its schematic LED_Matrix.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Trail design in my own project?
Its repository publishes it under the CERN-OHL-P-2.0 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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