
Corne V4 Pro Micro Edition
klouderone/CorneV4ProMicroEdition
The Corne V4 with Pro Micro Micocontrollers, made specifically for beginners and support for wireless microcontrollers

Ergonomic split keyboard with a 3x6 matrix layout and a 4 key thumb cluster.
Split is an open-source printed circuit board by tedraykov, from the tedraykov/spliteo repository on GitHub. It is a 2-layer board of 334.7 × 118.8 mm with 102 parts on 92 nets, routed with 557 tracks and 40 vias.
It is built around the PCM12SMTR. Its parts include 44 diodes, 44 switches, 2 connectors and 1 IC. It belongs with the keyboards and input and lEDs and displays boards and the AVR (ATmega, ATtiny) boards of this library.
Ergonomic split keyboard with a 3x6 matrix layout and a 4 key thumb cluster.

| Part | Quantity | Estimated Price | Source |
|---|---|---|---|
| Custom PCB | 1 | 9.06$ | https://jlcpcb.com |
| Low-profile Keycaps | 1 set | 19.44$ | https://item.taobao.com/item.htm?id=873448851434 |
| Hot-swappable switch connector (Choc v2 - 1350/1353) | 44 | 8.08$ | https://detail.tmall.com/item.htm?id=640063427738 |
| Kailh Full POM Black cloud | 44 | 24.22$ | https://detail.tmall.com/item.htm?id=813618264203 |
| Promicro Nrf52840 (Compatible with Nice!Nano V2.0) | 2 | 4.22$ | https://item.taobao.com/item.htm?id=799443140168 |
| Switch | 2 | https://vikiwat.com/prevklyuchvatel-2poz-03a-4vdc-spdt?_gl=1*1ycxpf8*_up*MQ..*_gs*MQ..&gclid=Cj0KCQjwtJ6_BhDWARIsAGanmKfTHJL2aIPRrds-LOpXbn-6GezxabXCETT-lDOsea4CDu5uTdaZ-T0aAu2pEALw_wcB | |
| Shipping Costs | - | 30,98$ | https://www.acbuy.com |
| Total | 96.00$ |
| Qty | Value | Footprint | References |
|---|---|---|---|
| 44 | D | Diode_SMD:Nexperia_CFP3_SOD-123W | D1, D2, D3, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22 +28 |
| 44 | SW_PUSH | kbd:keyswitch_choc12_hotswap_1u | SW1, SW2, SW3, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22 +28 |
| 8 | Breakaway Tabs | kbd:Breakaway_Tabs | BT1, BT2, BT3, BT4, BT5, BT6, BT7, BT8 |
| 2 | Conn_01x02_Socket | Connector_JST:JST_EH_S2B-EH_1x02_P2.50mm_Horizontal | J1, rJ1 |
| 2 | PCM12SMTR | Button_Switch_SMD:SW_SPDT_PCM12 | rSW23, SW23 |
| 1 | ProMicro | kbd:ProMicro | U1 |
| 1 | rProMicro | kbd:ProMicro | rU1 |
It measures 334.7 × 118.8 mm and has 2 copper layers, 1.6 mm thick.
102 parts, built around the PCM12SMTR. 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 tedraykov/spliteo repository on GitHub, at the commit this page was made from: the board is pcb/split.kicad_pcb and its schematic pcb/left.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 tedraykov before reusing the design.

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