4 layers227.1 × 84.3 mm
Koeg board pcb
hackclub/OnBoard
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290 parts915
4 layers228 × 84.3 mm
Mito pcb
KOEGlike/mito-pcb4the pcb of a wireless, split, low-profile, hot-swap, mechanical keyboard with RGB, based on the nrf52833 SOC
- Size
- 228 × 84.3 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 288
- Nets
- 203
- Pads
- 1,155
- Tracks, vias
- 2,513, 418
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 26 Oct 2024
- Updated
- 22 Mar 2025
Overview
Mito pcb is an open-source printed circuit board by KOEGlike, from the KOEGlike/mito-pcb repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 228 × 84.3 mm with 288 parts on 203 nets, routed with 2,513 tracks and 418 vias.
It is built around the BQ24075RGT, TXB0101DCKR and USBLC6-2SC6, with the SK6812MINI-E and AO3401A among its other parts. Its parts include 82 diodes, 80 capacitors, 46 switches, 26 resistors and 8 ICs. It belongs with the keyboards and input boards and the nRF52 and nRF5x boards of this library.
Main components
5
BQ24075RGT
QFN-16-EP(3x3)-40℃~+125℃ 1.5A 4.2V 4.35V~6.4V 6.5uA Charging IC Lithium Battery Not supported Support QFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery Management
TXB0101DCKR
SC-70-6-40℃~+85℃ 1 1 1.2V~3.6V 1.65V~5.5V 100Mbps Auto Direction Detection Bidirectional Tri-State SC-70-6 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
SK6812MINI-E
SMD-40℃~+85℃ 0.6mA 1.78mm 120mcd~240mcd 120° 160mcd~320mcd 1kHz 2.8mm 2000V 3.2mm 3.7V~5.5V 460nm~470nm 515nm~525nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Semi-transparent lens SMD RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
AO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
README
README.mdMito PCB
The pcb for my custom keyboard
Sponsor
Much thanks to pcbway for sponsoring this project, the video is in the making, stay tuned! The PCBs and stencil are very high quality!!
Gallery
Name
Inspired by the mitosis of cells
Parts
288| Qty | Value | Footprint | References |
|---|---|---|---|
| 48 | 100nF | Capacitor_SMD:C_0402_1005Metric | C2, C4, C18, C20, C41, C42, C43, C44, C47, C48, C49, C50, C51, C52, C53, C54 +32 |
| 42 | 1N5819 | Diode_SMD:D_SOD-123 | D2, D3, D4, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22 +26 |
| 42 | SW_Push | PCM_marbastlib-choc:SW_choc_v1_HS_CPG135001S30_1u | SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23, SW26, SW27 +26 |
| 40 | SK6812MINI-E | PCM_marbastlib-various:LED_6028R | D23, D24, D25, D26, D27, D28, D29, D30, D31, D32, D33, D34, D35, D36, D37, D38 +24 |
| 10 | MountingHole | MountingHole:MountingHole_2mm | H1, H2, H3, H4, H5, H6, H7, H8, H9, H10 |
| 8 | 10k | Resistor_SMD:R_0402_1005Metric | R13, R14, R16, R18, R20, R22, R33, R34 |
| 8 | 12pF | Capacitor_SMD:C_0402_1005Metric | C11, C12, C15, C16, C27, C28, C31, C32 |
| 8 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C9, C25, C87, C88, C89, C90, C91, C92 |
| 4 | 1uF | Capacitor_SMD:C_0402_1005Metric | C7, C23, C39, C40 |
| 4 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C10, C19, C24, C26 |
| 4 | 5.1k | Resistor_SMD:R_0402_1005Metric | R4, R5, R11, R12 |
| 3 | Fiducial | Fiducial:Fiducial_1.5mm_Mask3mm | FID1, FID2, FID3 |
| 3 | break off | panelization:mouse-bite-2mm-slot | BO1, BO2, BO3 |
| 2 | 1.2pF | Capacitor_SMD:C_0402_1005Metric | C14, C30 |
| 2 | 1.5k | Resistor_SMD:R_0402_1005Metric | R29, R30 |
| 2 | 100K | Resistor_SMD:R_0402_1005Metric | R1, R8 |
| 2 | 100R | Resistor_SMD:R_0402_1005Metric | R6, R7 |
| 2 | 100pF | Capacitor_SMD:C_0402_1005Metric | C5, C21 |
| 2 | 1pF | Capacitor_SMD:C_0402_1005Metric | C13, C29 |
| 2 | 2.2nH | Inductor_SMD:L_0402_1005Metric | L5, L10 |
| 2 | 2M | Resistor_SMD:R_0402_1005Metric | R3, R10 |
| 2 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q7, Q8 |
| 2 | 3.9k | Resistor_SMD:R_0402_1005Metric | R27, R28 |
| 2 | 32.768 kHz | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y3, Y4 |
| 2 | 32MHz | Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm | Y1, Y2 |
| 2 | 4.7k | Resistor_SMD:R_0402_1005Metric | R31, R32 |
| 2 | 4.7nH | Inductor_SMD:L_0402_1005Metric | L4, L9 |
| 2 | 500mA | Fuse:Fuse_0603_1608Metric | F1, F2 |
| 2 | 806k | Resistor_SMD:R_0402_1005Metric | R2, R9 |
| 2 | 820pF | Capacitor_SMD:C_0402_1005Metric | C6, C22 |
| 2 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q5, Q6 |
| 2 | Antenna_Chip | 2450AT42A100E:ANTC5020X110N | AE65, AE66 |
| 2 | BQ24075RGT | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U11, U12 |
| 2 | Conn_01x02 | Connector_PinHeader_1.00mm:PinHeader_1x02_P1.00mm_Vertical | J1, J4 |
| 2 | GND | TestPoint:TestPoint_Pad_D2.0mm | TP4, TP8 |
| 2 | Reset Button | Button_Switch_SMD:SW_SPST_TL3342 | SW1, SW24 |
| 2 | SWD_Connector | Connector_PinHeader_1.00mm:PinHeader_1x04_P1.00mm_Vertical | J2, J5 |
| 2 | SW_On_Off | Button_Switch_THT:SW_CK_JS202011AQN_DPDT_Angled | SW2, SW25 |
| 2 | TXB0101DCK | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U9, U10 |
| 2 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U2, U5 |
| 2 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_G-Switch_GT-USB-7010ASV | J3, J6 |
| 2 | VBAT | TestPoint:TestPoint_Pad_D2.0mm | TP3, TP7 |
| 2 | VSW | TestPoint:TestPoint_Pad_D2.0mm | TP1, TP5 |
| 2 | V_SYS | TestPoint:TestPoint_Pad_D2.0mm | TP2, TP6 |
| 2 | nRF52833_QDxx | Package_DFN_QFN:QFN-40-1EP_5x5mm_P0.4mm_EP3.6x3.6mm | U7, U8 |
Questions
How big is the Mito pcb PCB?
It measures 228 × 84.3 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Mito pcb use?
288 parts, built around the BQ24075RGT, TXB0101DCKR, USBLC6-2SC6 and SK6812MINI-E. 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 Mito pcb KiCad files?
From the KOEGlike/mito-pcb repository on GitHub, at the commit this page was made from: the board is mito-pcb.kicad_pcb and its schematic leds.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mito pcb design in my own project?
Its repository publishes it under the GPL-3.0 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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