nekoewen/lexicon4The Lexicon 65% writing keyboard
Lexicon 69 is an open-source printed circuit board by nekoewen, from the nekoewen/lexicon repository on GitHub. It is a 2-layer board of 323.9 × 95.3 mm with 182 parts on 127 nets, routed with 774 tracks and 129 vias.
It is built around the RP2040, W25Q128JVSIQ and AMS1117-3.3, with the USBLC6-2SC6 among its other parts. Its parts include 71 switches, 69 diodes, 19 capacitors, 8 resistors and 4 ICs. It belongs with the keyboards and input boards and the RP2040 boards of this library.
The Lexicon (or if you prefer the Lexicon 69 or the Cluney №3) is a 65% keyboard designed for writing prose, available from WeirdLittleKeebs. With an extensive collection of shortcuts for words, formatting commands, and extended punctuation, this keyboard changes the experience of writing while maintaining a standard QWERTY layout. Check out the User's Guide to see how its unique features work.
If you purchased a set of Lexicon PCB and plates, this guide will walk you through the assembly process.
Once you have a Lexicon ready to use, this guide explains all of its features in detail.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 70 | key | Footprints:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW11, SW12, SW13, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23, SW24, SW25 +54 |
| 69 | D | Footprints:SOD-123 | D1, D2, D10, D11, D12, D14, D15, D16, D17, D18, D19, D20, D21, D132, D133, D134 +53 |
| 9 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C87, C88, C90, C91, C92, C93, C94, C95, C96 |
| 3 | 10uF | Footprints:C_0805_2012Metric | C83, C84, C97 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R12, R13 |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric | C85, C86 |
| 2 | 22R | Resistor_SMD:R_0402_1005Metric | R10, R11 |
| 2 | 22pF | Capacitor_SMD:C_0402_1005Metric | C80, C81 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 100nF | Capacitor_SMD:C_0402_1005Metric | C89 |
| 1 | 12MHz | Crystal:Crystal_SMD_SeikoEpson_FA238-4Pin_3.2x2.5mm | Y2 |
| 1 | 1A | Fuse:Fuse_0805_2012Metric | F1 |
| 1 | 47uF | Capacitor_Tantalum_SMD:CP_EIA-3216-10_Kemet-I | C82 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U4 |
| 1 | DNP | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | DNP | Capacitor_SMD:C_0402_1005Metric | C70 |
| 1 | LOGO | Footprints:LEXICON LOGO 60MM | G*** |
| 1 | RESET | Button_Switch_SMD:SW_SPST_SKQG_WithStem | SW65 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U5 |
| 1 | SWD | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | USB C | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J2 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U6 |
The 176 most common of 182 parts.
It measures 323.9 × 95.3 mm and has 2 copper layers, 1.6 mm thick.
182 parts, built around the RP2040, W25Q128JVSIQ, AMS1117-3.3 and USBLC6-2SC6. 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 nekoewen/lexicon repository on GitHub, at the commit this page was made from: the board is PCB/Lexicon69/Lexicon 69.kicad_pcb and its schematic PCB/Lexicon 69 - PLATE BOT/Lexicon 69.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask nekoewen before reusing the design.
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