2 layers143.8 × 139.5 mm
Right board
ben5049/Keyboard
Features: - Wireless - 900mAh battery - Bluetooth (nRF52) - ZMK - 4 Port USB hub - BLDC Knob for haptic feedback - Kailh Choc V1 switches
104 parts1Apache-2.0
4 layers288 × 135.4 mm
Keyboard v2
ben5049/Keyboard1Features: - Wireless - 900mAh battery - Bluetooth (nRF52) - ZMK - 4 Port USB hub - BLDC Knob for haptic feedback - Kailh Choc V1 switches
- Size
- 288 × 135.4 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 344
- Nets
- 618
- Pads
- 1,904
- Tracks, vias
- 1,247, 599
- Pours
- 74
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 12 May 2024
- Updated
- 15 Mar 2026
Overview
Keyboard v2 is an open-source printed circuit board by ben5049, from the ben5049/Keyboard repository on GitHub, published under the Apache-2.0 licence. It is a 4-layer board of 288 × 135.4 mm with 344 parts on 618 nets, routed with 1,247 tracks and 599 vias.
It is built around the STM32U5G9ZJJ6Q, NRF52840-QFAA-F-R7 and MAX9938TEBS+TG45, with the RT4730WSC, USB2533-1080AEN and USBLC6-4SC6 among its other parts. Its parts include 136 capacitors, 58 switches, 54 diodes, 28 resistors and 24 ICs. It belongs with the keyboards and input boards and the STM32 and nRF52 and nRF5x boards of this library.
Main components
12
STM32U5G9ZJJ6Q
UFBGA-144(10x10)160MHz 32 Bit 4MB ARM Cortex-M33 FLASH UFBGA-144(10x10) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
NRF52840-QFAA-F-R7
QFN-48(6x6)-103dBm -40℃~+85℃ 1.7V~5.5V 2.4GHz 2Mbps 8dBm Bluetooth、802.15.4 SPI、USB、UART、ADC、I2S、PDM、PWM Supports RSSI function、CRC check function、DMA function transceiver QFN-48(6x6) RF Transceiver ICs ROHSNordic SemiconRF Transceiver ICsMAX9938TEBS+TG45
UCSP-4(1.1x1.1)-40℃~+85℃ 1 1.6V~28V 125kHz 130dB 200nA 25V/V 500uV 7mA 850nA High-side detection、Analog output interface、Input filter、External shunt ±30V UCSP-4(1.1x1.1) Current Sense Amplifiers ROHSMaxim Integrated (Analog Devices)Current Sense Amplifiers
RT4730WSC
WLCSP-16(2.3x2.3)WLCSP-16(2.3x2.3) OLED Drivers ROHSRichtek TechOLED Drivers
USB2533-1080AEN
QFN-36-EP(6x6)0℃~+70℃ 1.2V、3.3V 3 Hub I2C、SMBus USB 2.0 QFN-36-EP(6x6) USB HUB Controllers ROHSMicrochip TechnologyUSB Converters
USBLC6-4SC6
SOT-23-6-55℃~+125℃ 0.3pF 15V 300W@8/20us 4.7A@8/20us 5V 6V 80nA ESD Four channels IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Unidirectional SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)ADP5360ACBZ-2-R7
WLCSP-32(2.6x2.6)-40℃~+85℃ 1 2V 3.5uA 320mA 4.1V~6.8V 4.2V Charging IC、Protection IC I2C Lithium Battery Support WLCSP-32(2.6x2.6) Power Management - Specialized ROHSAnalog DevicesBattery Management
SK6812-EC20
SMD,2x2mm-40℃~+80℃ 0.65mA 0.65mm 100mcd~200mcd 160mcd~320mcd 160° 1kHz 2000V 2mm 2mm 3.7V~5.5V 460nm~475nm 50mcd~100mcd 520nm~535nm 620nm~630nm 800Kbit/s Built-in power-on reset circuit、Built-in one-way transmission function Semi-transparent lens SMD,2x2mm RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
USB4510-03-1-A
SMDUSB ConnectorsGlobal Connector Technology (GCT)
ANT3216A063R2400A
SMD-40℃~+105℃ 0.55mm 1.55mm 1.69dBi 1W 2 2.45GHz 230MHz 3.05mm 50Ω Patch Antenna SMD Antennas ROHSYAGEOAntennasCX2016SA24000D0HLLG3
-- Lack of specifications ROHSKyocera AVXUncategorisedDMN21D2UFB-7B
X1-DFN1006-3-55℃~+150℃ 1 N-channel 1V 2.8pF 20V 27.6pF 3Ω@1.5V 4pF 760mA 900mW 930pC@10V N-Channel X1-DFN1006-3 MOSFETs ROHSDiodes IncorporatedMOSFETs
README
README.mdKeyboard
V3
Features:
- Wireless
- 900mAh battery
- Bluetooth (nRF52)
- ZMK
- 4 Port USB hub
- BLDC Knob for haptic feedback
- Kailh Choc V1 switches
Parts
344| Qty | Value | Footprint | References |
|---|---|---|---|
| 58 | 100n | Capacitor_SMD:C_0402_1005Metric | C1007, C1008, C1009, C1010, C1011, C1201, C1202, C1203, C1204, C1205, C1206, C1207, C1208, C1209, C1301, C1302 +42 |
| 54 | SK6812-E | keyboard_footprints:LED_SK6812-E | D1201, D1202, D1203, D1204, D1205, D1206, D1207, D1208, D1209, D1210, D1211, D1212, D1213, D1214, D1215, D1216 +38 |
| 54 | SW_DIP_x01 | keyboard_footprints:choc-v1-hotswap | SW1201, SW1202, SW1203, SW1204, SW1205, SW1206, SW1207, SW1208, SW1209, SW1210, SW1211, SW1212, SW1213, SW1214, SW1215, SW1216 +38 |
| 22 | 10u | Capacitor_SMD:C_0402_1005Metric | C401, C404, C407, C503, C504, C1101, C1104, C1107, C1308, C1319, C1403, C1404, C1405, C1406, C1407, C1408 +6 |
| 16 | 1u | Capacitor_SMD:C_0402_1005Metric | C403, C502, C606, C607, C807, C812, C912, C915, C1012, C1015, C1103, C1307, C1312, C1402, C1506, C1507 |
| 12 | 10k | Resistor_SMD:R_0402_1005Metric | R501, R601, R602, R606, R801, R802, R1301, R1302, R1401, R1501, R1502, R1506 |
| 10 | 4u7 | Capacitor_SMD:C_0402_1005Metric | C402, C405, C406, C602, C815, C1102, C1105, C1106, C1315, C1502 |
| 8 | 100k | Resistor_SMD:R_0402_1005Metric | R502, R604, R708, R709, R1204, R1208, R1402, R1504 |
| 8 | 12p | Capacitor_SMD:C_0402_1005Metric | C823, C824, C903, C904, C1003, C1004, C1323, C1324 |
| 8 | USBLC6-4SC6 | Package_TO_SOT_SMD:SOT-23-6 | U601, U602, U603, U606, U1501, U1502, U1503, U1506 |
| 6 | 2u2 | Capacitor_SMD:C_0402_1005Metric | C501, C821, C822, C1321, C1322, C1401 |
| 4 | 10p | Capacitor_SMD:C_0402_1005Metric | C604, C605, C1504, C1505 |
| 4 | 22u | Capacitor_SMD:C_0402_1005Metric | C408, C409, C1108, C1109 |
| 4 | 2u2 | Inductor_SMD:L_Murata_DFE201610P | L401, L801, L1101, L1301 |
| 4 | 32MHz | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y802, Y902, Y1002, Y1302 |
| 4 | 3mm | TestPoint:TestPoint_Pad_D3.0mm | TP501, TP502, TP1401, TP1402 |
| 4 | 4u7 | Inductor_SMD:L_Murata_DFE201610P | L501, L502, L1401, L1402 |
| 4 | USB4510-03-1-A | keyboard_footprints:USB4510031A | J601, J602, J1501, J1502 |
| 2 | 100p | Capacitor_SMD:C_0402_1005Metric | C913, C1013 |
| 2 | 10u | Inductor_SMD:L_0402_1005Metric | L901, L1001 |
| 2 | 12k | Resistor_SMD:R_0402_1005Metric | R605, R1505 |
| 2 | 15n | Inductor_SMD:L_0402_1005Metric | L906, L1006 |
| 2 | 1p | Capacitor_SMD:C_0402_1005Metric | C905, C1005 |
| 2 | 1p2 | Capacitor_SMD:C_0402_1005Metric | C906, C1006 |
| 2 | 2n2 | Inductor_SMD:L_0402_1005Metric | L905, L1005 |
| 2 | 47k | Resistor_SMD:R_0402_1005Metric | R603, R1503 |
| 2 | 47n | Capacitor_SMD:C_0402_1005Metric | C914, C1014 |
| 2 | 4k7 | Resistor_SMD:R_0402_1005Metric | R701, R1201 |
| 2 | 4n7 | Inductor_SMD:L_0402_1005Metric | L902, L1002 |
| 2 | 50m | Resistor_SMD:R_0402_1005Metric | R503, R1403 |
| 2 | ADP5360ACBZ-2-R7 | keyboard_footprints:ADP5360ACBZ1R7 | IC501, IC1401 |
| 2 | ANT3216A063R2400A | keyboard_footprints:ANTC3016X65N | ANT201, ANT301 |
| 2 | CX2016SA24000D0HLLG3 | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y601, Y1501 |
| 2 | DMN21D2UFB-7B | keyboard_footprints:DMN21D2UFB7B | Q701, Q1201 |
| 2 | DMP2104LP-7 | keyboard_footprints:DMP2104LP7 | Q501, Q1401 |
| 2 | FH26W-27S-0.3SHW_60_ | keyboard_footprints:FH26W27S03SHW60 | J401, J1101 |
| 2 | GSB12J21C1EU | keyboard_footprints:AMPHENOL_GSB12J21C1EU | J603, J1503 |
| 2 | M24256X-FCU6T_VF | keyboard_footprints:BGA4C50P2X2_70X98X33 | U802, U1302 |
| 2 | MAX9938TEBS+TG45 | keyboard_footprints:BGA4C50P2X2_100X100X67 | U501, U1401 |
| 2 | PCM12SMTBR | keyboard_footprints:PCM12SMTBR | SW502, SW1402 |
| 2 | RIC11-31S15.5D7-TH | keyboard_footprints:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW701, SW1227 |
| 2 | RT4730WSC | keyboard_footprints:RT4730WSC | U401, U1101 |
| 2 | STM32G0B1KBUx | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm | U604, U1504 |
| 2 | STM32U5G9ZJJ6Q | keyboard_footprints:UFBGA144_STM | U801, U1301 |
| 2 | TMS-115-01-G-S | keyboard_footprints:debug_header | J201, J301 |
| 2 | USB2533-1080AEN | keyboard_footprints:QFN50P600X600X100-37N-D | U605, U1505 |
| 2 | nRF52840-QFAA-F-R7 | keyboard_footprints:QFN40P600X600X95-49N-D | U901, U1001 |
The 342 most common of 344 parts.
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Questions
How big is the Keyboard v2 PCB?
It measures 288 × 135.4 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Keyboard v2 use?
344 parts, built around the STM32U5G9ZJJ6Q, NRF52840-QFAA-F-R7, MAX9938TEBS+TG45 and RT4730WSC. 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 Keyboard v2 KiCad files?
From the ben5049/Keyboard repository on GitHub, at the commit this page was made from: the board is PCBs/keyboard-v2/keyboard_v2.kicad_pcb and its schematic PCBs/keyboard-v1/left_board/left_board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Keyboard v2 design in my own project?
Its repository publishes it under the Apache-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).