2 layers
4 layers
Motherboard
chiplet/kapineKircular Accelerator Prototype Innovative New Experience
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 132
- Nets
- 130
- Pads
- 482
- Tracks, vias
- 1,055, 188
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 1 Dec 2018
- Updated
- 5 Jul 2024
Overview
Motherboard is an open-source printed circuit board by chiplet, from the chiplet/kapine repository on GitHub. It is a 4-layer board with 132 parts on 130 nets, routed with 1,055 tracks and 188 vias.
It is built around the FT232RL-REEL, LP5907MFX-3.3/NOPB(MS) and TLV75533PDBV, with the USBLC6-2SC6, WS2812B and BSS138 among its other parts. Its parts include 51 capacitors, 39 diodes, 13 resistors, 13 connectors and 5 ICs. It belongs with the computers and single-board computers boards and the STM32 boards of this library.
Main components
6
FT232RL-REEL
SSOP-28-208mil-40℃~+85℃ 15mA 3.3V~5.25V 3Mbps 70uA USB 2.0 USB to UART SSOP-28-208mil USB Converters ROHSFTDIUSB Converters
LP5907MFX-3.3/NOPB(MS)
SOT-23-5-40℃~+125℃@(Tj) 1 180mV@(300mA) 2uA 3.3V 300mA 5.5V Fixed Over Current Protection、Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMSKSEMIVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsTLV75533PDBV
SOT-23-5-40℃~+125℃@(Tj) 1 238mV@(500mA) 25uA 3.3V 46dB@(100kHz) 5.5V 500mA 71.5uVrms Fixed Over Current Protection、Thermal Shutdown、Input undervoltage protection Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
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)
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
README
README.mdKAPINE
Kircular Accelerator Prototype Innovative New Experience
Setup
KiCAD Library Setup
Run the following command to install the third party KiCAD libraries used in the project
git submodule update --init --recursive
This project uses components from digikey-kicad-library which is configured as a git submodule of this project. Git doesn't clone submodules of a project by default when the project it is cloned so this has to be done manually.
Hardware
Pinout
Application Signal Descriptions
- m[0..15] -- Electromagnet control signals
- s[0..15] -- Photogate sensor input signals
- Debug 1 -- Debug led 1
- Debug 2 -- Debug led 2
- USART1 -- Command link UART
| Microcontroller Pin | Application Signal | Direction | Alternate Function |
|---|---|---|---|
| PB5 | m0 | Digital out | TBD |
| PD2 | m1 | Digital out | TBD |
| PC11 | m2 | Digital out | TBD |
| PA12 | m3 | Digital out | TBD |
| PA8 | m4 | Digital out | TBD |
| PC8 | m5 | Digital out | TBD |
| PC6 | m6 | Digital out | TBD |
| PB14 | m7 | Digital out | TBD |
| PB11 | m8 | Digital out | TBD |
| PB2 | m9 | Digital out | TBD |
| PC5 | m10 | Digital out | TBD |
| PA3 | m11 | Digital out | TBD |
| PC3 | m12 | Digital out | TBD |
| PC1 | m13 | Digital out | TBD |
| PB9 | m14 | Digital out | TBD |
| PB7 | m15 | Digital out | TBD |
| PB4 | s0 | Digital in | TBD |
| PC12 | s1 | Digital in | TBD |
| PC10 | s2 | Digital in | TBD |
| PA11 | s3 | Digital in | TBD |
| PC9 | s4 | Digital in | TBD |
| PC7 | s5 | Digital in | TBD |
| PB15 | s6 | Digital in | TBD |
| PB13 | s7 | Digital in | TBD |
| PB10 | s8 | Digital in | TBD |
| PB1 | s9 | Digital in | TBD |
| PC4 | s10 | Digital in | TBD |
| PA2 | s11 | Digital in | TBD |
| PC2 | s12 | Digital in | TBD |
| PC0 | s13 | Digital in | TBD |
| PB8 | s14 | Digital in | TBD |
| PB6 | s15 | Digital in | TBD |
| PA0 | Debug 1 | Digital out | TBD |
| PA1 | Debug 2 | Digital out | TBD |
| PA9 | USART1_TX | Digital out | AF7 |
| PA10 | USART1_RX | Digital in | AF7 |
| PC13 | RGB LEDs | Digital out | TBD |
Parts
132| Qty | Value | Footprint | References |
|---|---|---|---|
| 39 | 100n | Capacitor_SMD:C_0603_1608Metric | C11, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25, C26, C27 +23 |
| 32 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +16 |
| 7 | 1k | Resistor_SMD:R_0805_2012Metric | R6, R7, R9, R10, R11, R12, R13 |
| 5 | 1u | Capacitor_SMD:C_0603_1608Metric | C2, C47, C48, C49, C50 |
| 4 | MountingHole | MountingHole:MountingHole_4.3mm_M4 | H1, H2, H3, H4 |
| 4 | stack[0..3] | Connector_PinSocket_2.54mm:PinSocket_2x04_P2.54mm_Vertical | J9, J10, J11, J12 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R4 |
| 2 | 10n | Capacitor_SMD:C_0603_1608Metric | C4, C51 |
| 2 | 27p | Capacitor_SMD:C_0603_1608Metric | C9, C10 |
| 2 | 4.7u | Capacitor_SMD:C_0805_2012Metric | C1, C12 |
| 1 | 0 | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 1000u | Capacitor_SMD:CP_Elec_10x10 | C46 |
| 1 | 390 | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 470 | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 690-005-299-043 | digikey-footprints:USB_Mini_B_Female_690-005-299-043 | J3 |
| 1 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | CBUS[2..4] | Connector_PinHeader_1.27mm:PinHeader_1x03_P1.27mm_Vertical | J8 |
| 1 | Conn_ARM_JTAG_SWD_10 | digikey-footprints:PinHeader_2x5_P1.27mm_Drill.7mm | J2 |
| 1 | DEBUG_1 | LED_SMD:LED_0805_2012Metric | D37 |
| 1 | DEBUG_2 | LED_SMD:LED_0805_2012Metric | D38 |
| 1 | FT232RL-REEL | digikey-footprints:SSOP-28_W5.30mm | U5 |
| 1 | Ferrite_Bead | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | GPIO | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J13 |
| 1 | HSE | Crystal:Crystal_SMD_Abracon_ABM3C-4Pin_5.0x3.2mm | Y1 |
| 1 | LED_3V3 | LED_SMD:LED_0805_2012Metric | D34 |
| 1 | LED_5V | LED_SMD:LED_0805_2012Metric | D33 |
| 1 | LED_RX | LED_SMD:LED_0805_2012Metric | D36 |
| 1 | LED_TX | LED_SMD:LED_0805_2012Metric | D35 |
| 1 | LED_USB | LED_SMD:LED_0805_2012Metric | D39 |
| 1 | LP5907MFX-3_3_NOPB | digikey-footprints:SOT-753 | U3 |
| 1 | Q_PMOS_GSD | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | RGB ENABLE | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP2 |
| 1 | RGB stack | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J5 |
| 1 | STACK_5V | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J6 |
| 1 | STACK_GND | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J4 |
| 1 | STM32F303RETx | Package_QFP:LQFP-64_10x10mm_P0.5mm | U1 |
| 1 | SWD holes | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J1 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_TL3342 | SW1 |
| 1 | TLV75533PDBV | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | UART pins | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J7 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | boot select | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP1 |
Questions
What parts does the Motherboard use?
132 parts, built around the FT232RL-REEL, LP5907MFX-3.3/NOPB(MS), TLV75533PDBV and USBLC6-2SC6. 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 chiplet/kapine repository on GitHub, at the commit this page was made from: the board is hw/motherboard/main/main.kicad_pcb and its schematic hw/motherboard/main/main.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 chiplet before reusing the design.
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