2 layers92 × 82 mm
DriverBoard
Krypthick/Prototype-Bras-Continuum
Ce repo contient les schemas, les cartes imprimées, les codes sources, etc du projet.
39 parts
4 layers80.9 × 66.5 mm
Ce repo contient les schemas, les cartes imprimées, les codes sources, etc du projet.
- Size
- 80.9 × 66.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 81
- Nets
- 100
- Pads
- 300
- Tracks, vias
- 402, 42
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 23 May 2026
- Updated
- 29 May 2026
Overview
Schema is an open-source printed circuit board by Krypthick, from the Krypthick/Prototype-Bras-Continuum repository on GitHub. It is a 4-layer board of 80.9 × 66.5 mm with 81 parts on 100 nets, routed with 402 tracks and 42 vias.
It is built around the STM32F103C8T6, ESP32-WROOM-32E-N4 and TPS54331DR-JSM, with the TPS62162DSGR, CRCW08050000Z0EA and RC0603FR-0710KL among its other parts. Its parts include 26 capacitors, 19 resistors, 7 diodes, 6 connectors and 4 switches. It belongs with the ESP32 and STM32 boards of this library.
Main components
12
STM32F103C8T6
LQFP-48(7x7)-40℃~+85℃ 12bit 20KB 2V~3.6V 32 Bit 37 64KB 72MHz ARM Cortex-M3 Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
ESP32-WROOM-32E-N4
SMD,25.5x18mm-40℃~+85℃ -98dBm 112mA 2.4GHz 20dBm 239mA 3V~3.6V Bluetooth4.2 ESP32-D0WD-V3、ESP32-D0WDR2-V3 On-board PCB Antenna UART、SDIO、SPI、I2C、GPIO SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
TPS54331DR-JSM
SOP-8-40℃~+125℃ 1 2mA 3A 4.5V~40V 400kHz Adjustable Buck Built-in No Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting Step-down type SOP-8 DC-DC Converters ROHSJSMSEMIDC-DC Converters
TPS62162DSGR
WSON-8-EP(2x2)-40℃~+125℃@(TJ) 1 17uA 1A 2.25MHz 3.3V 3V~17V Buck Buck Built-in Fixed Yes WSON-8-EP(2x2) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
CRCW08050000Z0EA
0805-55℃~+155℃ 0Ω 125mW 200V Thick Film Resistor 0805 Chip Resistor - Surface Mount ROHSVishay IntertechnologyChip Resistor - Surface Mount
RC0603FR-0710KL
UncategorisedUnknown makerCRGCQ0805F220R
0805-55℃~+155℃ 125mW 150V 220Ω Thick Film Resistor ±1% ±100ppm/℃ 0805 Chip Resistor - Surface Mount ROHSTE ConnectivityChip Resistor - Surface Mount
CDBC560-G
SMC_L6.9-W5.9-LS7.9500uA@60V 5A 60V 750mV@5A DO-214AB Schottky Diodes ROHSComchipSchottky Diodes
RMCF0603FT100K
0603-55℃~+155℃ 100kΩ 100mW 75V Thick Film Resistor ±1% ±100ppm/℃ 0603 Chip Resistor - Surface Mount ROHSStackpole Electronics (SEI)Chip Resistor - Surface Mount
CL21B106KOQNNNE
080510uF 16V X7R ±10% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
35ZLH100MEFC6.3X11
插件,D6.3xL11mm-40℃~+105℃ 100uF 11mm 2.5mm 35V 540mA@100kHz 6.3mm 6000hrs@105℃ ±20% 插件,D6.3xL11mm Aluminum Electrolytic Capacitors - Leaded ROHSRubyconAluminum Electrolytic Capacitors - Leaded
IHLP4040DZER100M01
SMD,10.2x10.2mm10uH 12A 36.5mΩ 6.8A ±20% SMD,10.2x10.2mm Inductors (SMD) ROHSVishay IntertechnologyInductors (SMD)
Parts
81| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C3, C6, C8, C13, C15, C17, C19, C21, C22, C23 |
| 5 | TestPoint | TestPoint:TestPoint_Pad_1.5x1.5mm | TP1, TP2, TP3, TP4, TP5 |
| 4 | 22uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C16, C18, C27 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4 |
| 3 | 0 | Footprints:RESC2012X50N | R8, R11, R12 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R7, R10 |
| 3 | 220 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R14, R15, R16 |
| 3 | D_Schottky | Footprints:CDBC-G | D2, D3, D4 |
| 2 | 100k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13, Ren1 |
| 2 | 10pF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10, C12 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C14, C24 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C25, C26 |
| 2 | BOOT | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW2, SW3 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C28 |
| 1 | 100pF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C9 |
| 1 | 100uf | Footprints:CAP_YX_6P3X11_RUB | C20 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R21 |
| 1 | 10nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7 |
| 1 | 10uH | Footprints:IND_IHLP-4040DZ_VIS | L1 |
| 1 | 120 | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB1 |
| 1 | 16MHz | Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm | Y1 |
| 1 | 1k5 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6 |
| 1 | 2.2uH | Footprints:INDC3225X170N | L2 |
| 1 | 270k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R17 |
| 1 | 4.7nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C11 |
| 1 | 470 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R19 |
| 1 | 470k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R20 |
| 1 | 52.3k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9 |
| 1 | 60k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R18 |
| 1 | 8.2k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 1 | Conn_02x08_Counter_Clockwise | Footprints:CONN_7024616xx_MOL | J4 |
| 1 | EN | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW1 |
| 1 | ESP32-WROOM-32E | Footprints:XCVR_ESP32-WROOM-32E__16MB_ | U2 |
| 1 | FTDI | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | Fuse | Footprints:FUSC6125X279N | F1 |
| 1 | Gyro | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D8 |
| 1 | LEDR | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D5 |
| 1 | LEDV | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D7 |
| 1 | LEDY | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D6 |
| 1 | ON/OFF | Footprints:TE_640456-2 | SW4 |
| 1 | STM32F103C8T6 | Footprints:QFP50P900X900X160-48N | U4 |
| 1 | St-link | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | TPS54331DR | Footprints:SOIC127P599X175-8N | U3 |
| 1 | TPS62162DSGR | Footprints:SON50P200X200X80-9N | PS1 |
| 1 | USB_B_Micro | Footprints:AMPHENOL_10118192-0001LF | J2 |
| 1 | VCC_ESP | TestPoint:TestPoint_Pad_1.5x1.5mm | TP6 |
| 1 | XT30 | Connector_AMASS:AMASS_XT30U-M_1x02_P5.0mm_Vertical | J5 |
Questions
How big is the Schema PCB?
It measures 80.9 × 66.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Schema use?
81 parts, built around the STM32F103C8T6, ESP32-WROOM-32E-N4, TPS54331DR-JSM and TPS62162DSGR. 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 Schema KiCad files?
From the Krypthick/Prototype-Bras-Continuum repository on GitHub, at the commit this page was made from: the board is Schemas/MainBoard/schema.kicad_pcb and its schematic Schemas/DriverBoard/DriverBoard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Schema design in my own project?
Its repository states no licence, so its author keeps all rights: ask Krypthick before reusing the design.
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