2 layers
2 layers
Motherboard
karagure/modulx-pcb- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 28
- Pads
- 143
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 14 Jan 2026
- Updated
- 24 Feb 2026
Overview
Motherboard is an open-source printed circuit board by karagure, from the karagure/modulx-pcb repository on GitHub. It is a 2-layer board with 20 parts on 28 nets.
It is built around the ESP32-C3-WROOM-02U-N4, AP2112K-3.3TRG1 and GSB1C41110SSHR. Its parts include 7 resistors, 5 connectors, 4 capacitors, 2 ICs and 2 switches. It belongs with the computers and single-board computers boards and the ESP32 and RISC-V boards of this library.
Main components
3
ESP32-C3-WROOM-02U-N4
SMD-19P-40℃~+85℃ -98dBm 2.4GHz 20.5dBm 345mA 3V~3.6V 82mA Bluetooth5.0 ESP32-C3 Chip UART、SPI、I2C、I2S、JTAG、USB SMD-19P WiFi Modules ROHSEspressif SystemsWiFi Modules
AP2112K-3.3TRG1
SOT-25-5-40℃~+85℃@(Ta) 1 250mV@(600mA) 3.3V 50uVrms 55uA 600mA 65dB@(1kHz) 6V Fixed Over Current Protection、Thermal Shutdown、Enable control Positive SOT-25-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
GSB1C41110SSHR
USB-SMDUSB-SMD New Arrivals ROHSAmphenolUSB Connectors
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 532610571 | footprint:CONN_532610001-SD_05_MOL | J1, J3, J5, J6 |
| 2 | 0.1µF | Capacitor_SMD:C_0201_0603Metric | C1, C5 |
| 2 | 27ohm | Resistor_SMD:R_0201_0603Metric | R1, R2 |
| 2 | 4.7 kΩ | Resistor_SMD:R_0201_0603Metric | R7, R8 |
| 2 | 5.1kΩ | Resistor_SMD:R_0201_0603Metric | R4, R5 |
| 2 | SW_Push | Button_Switch_SMD:SW_SPST_PTS810 | SW1, SW2 |
| 1 | 10 kΩ | Resistor_SMD:R_0201_0603Metric | R6 |
| 1 | 10µF | Capacitor_SMD:C_0201_0603Metric | C2 |
| 1 | 1µF | Capacitor_SMD:C_0201_0603Metric | C3 |
| 1 | AP2112K-3.3TRG1 | footprint:SOT95P285X140-5N | U4 |
| 1 | ESP32-C3-WROOM-02U | RF_Module:ESP32-C3-WROOM-02U | U2 |
| 1 | GSB1C41110SSHR | footprint:AMPHENOL_GSB1C41110SSHR | J2 |
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Questions
What parts does the Motherboard use?
20 parts, built around the ESP32-C3-WROOM-02U-N4, AP2112K-3.3TRG1 and GSB1C41110SSHR. 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 Motherboard KiCad files?
From the karagure/modulx-pcb repository on GitHub, at the commit this page was made from: the board is motherboard/motherboard.kicad_pcb and its schematic motherboard/IMU.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Motherboard design in my own project?
Its repository states no licence, so its author keeps all rights: ask karagure before reusing the design.