
Katia
ikajdan/katia
A split keyboard with 6 by 3 column staggered keys and 3 thumb keys, based on the Crkbrd design
Keymodule & pcb design
Keymodule revides is an open-source printed circuit board by Mosselman, from the Mosselman/PixelPanel repository on GitHub, published under the MIT licence. It is a 4-layer board of 91 × 91 mm with 123 parts on 103 nets, routed with 850 tracks and 93 vias.
It is built around the RP2040, SN74LV1T34DBV and W25Q128JVSIQ, with the AMS1117-3.3, WS2812B and ABM8-272-T3 among its other parts. Its parts include 25 diodes, 25 inductors, 12 capacitors, 4 resistors and 4 ICs. It belongs with the RP2040 boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 25 | D | Diode_SMD:D_0603_1608Metric | D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24, D25 +9 |
| 25 | WS2812B | 1_Custom_library:Sk6812 mini-E Upsidedown | L1, L2, L10, L11, L12, L13, L14, L15, L16, L17, L18, L19, L20, L21, L22, L23 +9 |
| 25 | ~ | 1_Custom_library:Kailh low profile Choc switch V1 | M_SW1, M_SW2, M_SW10, M_SW11, M_SW12, M_SW13, M_SW14, M_SW15, M_SW16, M_SW17, M_SW18, M_SW19, M_SW20, M_SW21, M_SW22, M_SW23 +9 |
| 7 | 100nf | Capacitor_SMD:C_0402_1005Metric | C4, C4, C4, C5, C8, C10, C15 |
| 4 | Conn_01x01 | Connector_PinHeader_1.27mm:PinHeader_1x01_P1.27mm_Horizontal | 5V, 5V, GND, GND |
| 3 | TestPoint_Pad_D2.0mm | TestPoint:TestPoint_Pad_D2.0mm | 3.3V, 5V, GND |
| 2 | 10K | Resistor_SMD:R_0402_1005Metric | R2, R4 |
| 2 | 10uf | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | 15p | Capacitor_SMD:C_0402_1005Metric | C13, C14 |
| 2 | 1K | Resistor_SMD:R_0402_1005Metric | NO, R5 |
| 2 | 27 | Resistor_SMD:R_0402_1005Metric | R6, R7 |
| 2 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal | J3, J6 |
| 1 | 10K DNF | Resistor_SMD:R_0402_1005Metric | NO |
| 1 | 1uf | Capacitor_SMD:C_0402_1005Metric | C11 |
| 1 | ABM8-272-T3 | Oscillator:Oscillator_SMD_SiT_PQFN-4Pin_2.0x1.6mm | Y1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | BOOT | TestPoint:TestPoint_Pad_D2.0mm | BOOT |
| 1 | RESET | TestPoint:TestPoint_Pad_D2.0mm | RUN |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1 |
| 1 | SN74LV1T34DBV | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | SW_PUSH_6mm | Button_Switch_THT:SW_PUSH_6mm | RESET |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U4 |
The 111 most common of 123 parts.
It measures 91 × 91 mm and has 4 copper layers, 1.6 mm thick.
123 parts, built around the RP2040, SN74LV1T34DBV, W25Q128JVSIQ and AMS1117-3.3. 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 Mosselman/PixelPanel repository on GitHub, at the commit this page was made from: the board is Keymodule/Pcb/Keymodule revides.kicad_pcb and its schematic Interface module/Pcb/Interface module/Interface module.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).

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