# FCBoard
## Description
40×30 mm 4-Layer FCBoard with dual JST-GH 1.25 mm top-entry GH-6 connectors for PWR1/PWR2, SWD 1.27 mm debug-only connector, dual 5 V ideal-diode ORing, isolated USB_5V, dedicated nets (PWR1_5V, PWR2_5V, 5V_IO, 5V_SENS, 3V3_MCU, 3V3_IMU_A/B/C), per-IMU LDOs with inline ferrites and decoupling, and MCU VDDA ferrite isolation #JSTGH #CubeGrade #PowerArchitecture #FCBoard
## Project Details
- **Owner:** spaceboxinc
- **Created:** 2/4/2026
- **Last Updated:** 2/4/2026
- **Visibility:** Public
- **Part Type:** Microcontroller
- **ReservedEdgeClearance_mm:** 1.0-2.0mm
- **Board Stackup Target:** Signal / Ground / Power / Signal
- **BoardDimensions_mm:** 40x30mm
- **Board Layers:** 4-layer
- **Connector standard:** JST-GH 1.25 mm top-entry ONLY
- **Domain:** Consumer Electronics
- **Power Requirements:** USB
- **System Architecture:** ```mermaid
flowchart TD
PWR1[PWR1_5V Connector]
PWR2[PWR2_5V Connector]
OR[Dual 5V ORing]
PWR1 --> OR
PWR2 --> OR
LDO_MCU[LDO MCU\n3.3V Rail (3V3_MCU)]
LDO_A[LDO IMU_A\n3.3V Rail (3V3_IMU_A)]
LDO_B[LDO IMU_B\n3.3V Rail (3V3_IMU_B)]
LDO_C[LDO IMU_C\n3.3V Rail (3V3_IMU_C)]
OR --> LDO_MCU
OR --> LDO_A
OR --> LDO_B
OR --> LDO_C
```
- **Software:** Bare metal
- **EnclosureDimensions_mm:** 45x35x16mm
- **ConnectorPolicy:** JST-GH 1.25 mm top-entry ONLY
- **Core MCU:** STM32H743
- **BoardShape:** Rectangular
## Key Components
### CN1 — [SM06B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm06b-ghs-tblfsn.md)
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST_SM06B-GHS-TB-LF-SN_SM06B-GHS-TB-LF-SN_C133065.html
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf
- Connector Gender: Female
- Role: Connector
- Connector Rows: 1
- Package: Right-angle SMD, 1.25 mm pitch, 6-pin
- Part Type: Wire To Board / Wire To Wire Connector
- JLCPCB Part Class: Extended Part
- Connector Type: Wire-to-Board
- Manufacturer Name: JST
- Connector Pitch: 2mm
- Manufacturer Part Number: SM06B-GHS-TB(LF)(SN)
- Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN
- LCSC Part Number: C133065
- Role Details: Cube-style 6-pin JST-GH for power inputs (PWR1, PWR2), GPS, TELEM1, TELEM2
- Connector Positions: 6
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
### CN10 — [SM06B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm06b-ghs-tblfsn.md)
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST_SM06B-GHS-TB-LF-SN_SM06B-GHS-TB-LF-SN_C133065.html
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf
- Connector Gender: Female
- Connector Rows: 1
- Part Type: Wire To Board / Wire To Wire Connector
- JLCPCB Part Class: Extended Part
- Connector Type: Wire-to-Board
- Manufacturer Name: JST
- Connector Pitch: 2mm
- Manufacturer Part Number: SM06B-GHS-TB(LF)(SN)
- Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN
- LCSC Part Number: C133065
- Connector Positions: 6
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
### CN2 — [SM06B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm06b-ghs-tblfsn.md)
- Role Details: GPS interface connector
- Manufacturer Name: JST
- Connector Pitch: 2mm
- Package: Right-angle SMD, 1.25 mm pitch, 6-pin
- Connector Type: Wire-to-Board
- Role: Connector
- Connector Rows: 1
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf
- Connector Gender: Female
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST_SM06B-GHS-TB-LF-SN_SM06B-GHS-TB-LF-SN_C133065.html
- Connector Positions: 6
- LCSC Part Number: C133065
- Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN
- Manufacturer Part Number: SM06B-GHS-TB(LF)(SN)
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
### CN3 — [SM06B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm06b-ghs-tblfsn.md)
- Manufacturer Name: JST
- Connector Pitch: 2mm
- Role: Connector
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST_SM06B-GHS-TB-LF-SN_SM06B-GHS-TB-LF-SN_C133065.html
- Package: CONN-TH_SM06B-GHS-TB-LF-SN
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf
- Connector Gender: Female
- Connector Rows: 1
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector
- Connector Type: Wire-to-Board
- LCSC Part Number: C133065
- Connector Positions: 6
- Role Details: GPS interface connector
- Manufacturer Part Number: SM06B-GHS-TB(LF)(SN)
- Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
### CN4 — [SM06B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm06b-ghs-tblfsn.md)
- Connector Positions: 6
- Role: Connector
- LCSC Part Number: C133065
- Role Details: GPS interface connector
- Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN
- Manufacturer Part Number: SM06B-GHS-TB(LF)(SN)
- Manufacturer Name: JST
- Connector Pitch: 2mm
- Connector Type: Wire-to-Board
- Part Type: Wire To Board / Wire To Wire Connector
- JLCPCB Part Class: Extended Part
- Connector Rows: 1
- Connector Gender: Female
- Package: Right-angle SMD, 1.25 mm pitch, 6-pin
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST_SM06B-GHS-TB-LF-SN_SM06B-GHS-TB-LF-SN_C133065.html
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
### CN5 — [SM06B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm06b-ghs-tblfsn.md)
- Connector Rows: 1
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector
- Connector Type: Wire-to-Board
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST_SM06B-GHS-TB-LF-SN_SM06B-GHS-TB-LF-SN_C133065.html
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf
- Connector Gender: Female
- Connector Pitch: 2mm
- Manufacturer Name: JST
- Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN
- Manufacturer Part Number: SM06B-GHS-TB(LF)(SN)
- Connector Positions: 6
- LCSC Part Number: C133065
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
### CN6 — [SM06B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm06b-ghs-tblfsn.md)
- Manufacturer Part Number: SM06B-GHS-TB(LF)(SN)
- Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN
- LCSC Part Number: C133065
- Connector Positions: 6
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST_SM06B-GHS-TB-LF-SN_SM06B-GHS-TB-LF-SN_C133065.html
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf
- Connector Gender: Female
- Connector Rows: 1
- Part Type: Wire To Board / Wire To Wire Connector
- JLCPCB Part Class: Extended Part
- Connector Type: Wire-to-Board
- Manufacturer Name: JST
- Connector Pitch: 2mm
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
### CN7 — [SM06B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm06b-ghs-tblfsn.md)
- Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN
- Manufacturer Part Number: SM06B-GHS-TB(LF)(SN)
- Connector Positions: 6
- LCSC Part Number: C133065
- Connector Type: Wire-to-Board
- Connector Rows: 1
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf
- Connector Gender: Female
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST_SM06B-GHS-TB-LF-SN_SM06B-GHS-TB-LF-SN_C133065.html
- Manufacturer Name: JST
- Connector Pitch: 2mm
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
### CN8 — [SM06B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm06b-ghs-tblfsn.md)
- Manufacturer Part Number: SM06B-GHS-TB(LF)(SN)
- Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN
- LCSC Part Number: C133065
- Connector Positions: 6
- Connector Gender: Female
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST_SM06B-GHS-TB-LF-SN_SM06B-GHS-TB-LF-SN_C133065.html
- Connector Type: Wire-to-Board
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector
- Connector Rows: 1
- Connector Pitch: 2mm
- Manufacturer Name: JST
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
### CN9 — [SM06B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm06b-ghs-tblfsn.md)
- Connector Pitch: 2mm
- Manufacturer Name: JST
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector
- Connector Rows: 1
- Connector Type: Wire-to-Board
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST_SM06B-GHS-TB-LF-SN_SM06B-GHS-TB-LF-SN_C133065.html
- Connector Gender: Female
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf
- Connector Positions: 6
- LCSC Part Number: C133065
- Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN
- Manufacturer Part Number: SM06B-GHS-TB(LF)(SN)
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
### FB1 — [Generic Inductor](https://www.flux.ai/jharwinbarrozo/generic-inductor.md)
- Role Details: Ferrite bead for MCU 3.3V rail isolation
- Role: Choke (EMI Filter)
- Part Type: Inductor
- Inductance: 1uH
- Package: SMD_0805_2012Metric
**Pins:**
- P1 [pin 1]
- P2 [pin 2]
### FB2 — [Generic Inductor](https://www.flux.ai/jharwinbarrozo/generic-inductor.md)
- Inductance: 1uH
- Package: SMD_0805_2012Metric
- Part Type: Inductor
- Role: Choke (EMI Filter)
- Role Details: Ferrite bead for IMU A 3.3V rail isolation
**Pins:**
- P1 [pin 1]
- P2 [pin 2]
### FB3 — [Generic Inductor](https://www.flux.ai/jharwinbarrozo/generic-inductor.md)
- Part Type: Inductor
- Inductance: 1uH
- Package: SMD_0805_2012Metric
- Role Details: Ferrite bead for IMU B 3.3V rail isolation
- Role: Choke (EMI Filter)
**Pins:**
- P1 [pin 1]
- P2 [pin 2]
### J1 — [FTSH-105-01-L-D-K](https://www.flux.ai/adrian95/ftsh-105-01-l-d-k.md)
- Connector Pitch: 1.27mm
- Package or Case Code: SAMTEC_FTSH-105-01-L-D-K
- Exclude from PCB: false
- Connector Gender: Male
- Exclude from BOM: false
- Manufacturer Part Number: FTSH-105-01-L-D-K
- Part Type: Connector
- Connector Rows: 2
- Manufacturer Name: Samtec
- Datasheet URL: https://suddendocs.samtec.com/catalog_english/ftsh_th.pdf
- Section: Debug
- Role Details: FACTORY / DEBUG ONLY: SWD debug interface header
- Connector Positions: 10
- License: https://creativecommons.org/licenses/by/4.0/
- Connector Type: Headers and Wire Housings
- Role: Interface
**Pins:**
- 01 [pin 01]
- 02 [pin 02]
- 03 [pin 03]
- 04 [pin 04]
- 05 [pin 05]
- 06 [pin 06]
- 07 [pin 07]
- 08 [pin 08]
- 09 [pin 09]
- 10 [pin 10]
### J4 — [282836-3](https://www.flux.ai/jecstronic/282836-3.md)
- Part Type: Connector
- Manufacturer Part Number: 282836-3
- Role Details: CAN bus interface connector
- License: https://creativecommons.org/licenses/by/4.0/
- Role: Connector
- Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=1308389_EUROSTYLE_TERMINAL_BLOCKS&DocType=CS&DocLang=English
- Manufacturer Name: TE Connectivity AMP Connectors
**Pins:**
- PIN1 [pin 1]
- PIN2 [pin 2]
- PIN3 [pin 3]
### J5 — [282836-3](https://www.flux.ai/jecstronic/282836-3.md)
- Manufacturer Name: TE Connectivity AMP Connectors
- Role Details: CAN bus interface connector
- License: https://creativecommons.org/licenses/by/4.0/
- Manufacturer Part Number: 282836-3
- Part Type: Connector
- Role: Connector
- Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=1308389_EUROSTYLE_TERMINAL_BLOCKS&DocType=CS&DocLang=English
**Pins:**
- PIN1 [pin 1]
- PIN2 [pin 2]
- PIN3 [pin 3]
### JX1 — [SM06B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm06b-ghs-tblfsn.md)
- Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN
- Manufacturer Part Number: SM06B-GHS-TB(LF)(SN)
- Connector Positions: 6
- LCSC Part Number: C133065
- Connector Type: Wire-to-Board
- Connector Rows: 1
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector
- Package: Right-angle SMD, 1.25 mm pitch, 6-pin
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf
- Connector Gender: Female
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST_SM06B-GHS-TB-LF-SN_SM06B-GHS-TB-LF-SN_C133065.html
- Role Details: Cube-compatible GPS/Telem/Power I/O
- Connector Pitch: 2mm
- Role: Connector
- Manufacturer Name: JST
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
### PWR1 — [SM06B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm06b-ghs-tblfsn.md)
- Manufacturer Part Number: SM06B-GHS-TB(LF)(SN)
- Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN
- LCSC Part Number: C133065
- Connector Positions: 6
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf
- Package: Right-angle SMD, 1.25 mm pitch, 6-pin
- Connector Gender: Female
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST_SM06B-GHS-TB-LF-SN_SM06B-GHS-TB-LF-SN_C133065.html
- Connector Type: Wire-to-Board
- Connector Rows: 1
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector
- Role Details: Power input connector PWR1
- Connector Pitch: 2mm
- Manufacturer Name: JST
- Role: Power Source
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
### PWR2 — [SM06B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm06b-ghs-tblfsn.md)
- Connector Positions: 6
- LCSC Part Number: C133065
- Role Details: Power input connector PWR2
- Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN
- Manufacturer Part Number: SM06B-GHS-TB(LF)(SN)
- Connector Pitch: 2mm
- Manufacturer Name: JST
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector
- Connector Rows: 1
- Connector Type: Wire-to-Board
- Role: Power Source
- Package: Right-angle SMD, 1.25 mm pitch, 6-pin
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST_SM06B-GHS-TB-LF-SN_SM06B-GHS-TB-LF-SN_C133065.html
- Connector Gender: Female
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
### U1 — [STM32H743VIT6](https://www.flux.ai/vasy_skral/stm32h743vit6.md)
- Role Details: Main microcontroller core STM32H743 in LQFP100 package
- Part Type: Microcontroller
- Role: Main MCU
- License: https://creativecommons.org/licenses/by/4.0/
- Datasheet URL: https://www.st.com/resource/en/datasheet/stm32h743bi.pdf
- Manufacturer Name: STMicroelectronics
- Package: 100-LQFP
- Manufacturer Part Number: STM32H743VIT6
**Pins:**
- BOOT0 [pin 94]
- NRST [pin 14]
- PA0 [pin 22]
- PA1 [pin 23]
- PA10 [pin 69]
- PA11 [pin 70]
- PA12 [pin 71]
- PA13 [pin 72]
- PA14 [pin 76]
- PA15 [pin 77]
- PA2 [pin 24]
- PA3 [pin 25]
- PA4 [pin 28]
- PA5 [pin 29]
- PA6 [pin 30]
- PA7 [pin 31]
- PA8 [pin 67]
- PA9 [pin 68]
- PB0 [pin 34]
- PB1 [pin 35]
- PB10 [pin 46]
- PB11 [pin 47]
- PB12 [pin 51]
- PB13 [pin 52]
- PB14 [pin 53]
- PB15 [pin 54]
- PB2 [pin 36]
- PB3 [pin 89]
- PB4 [pin 90]
- PB5 [pin 91]
- PB6 [pin 92]
- PB7 [pin 93]
- PB8 [pin 95]
- PB9 [pin 96]
- PC0 [pin 15]
- PC1 [pin 16]
- PC10 [pin 78]
- PC11 [pin 79]
- PC12 [pin 80]
- PC13 [pin 7]
- PC14 [pin 8]
- PC15 [pin 9]
- PC2_C [pin 17]
- PC3_C [pin 18]
- PC4 [pin 32]
- PC5 [pin 33]
- PC6 [pin 63]
- PC7 [pin 64]
- PC8 [pin 65]
- PC9 [pin 66]
- PD0 [pin 81]
- PD1 [pin 82]
- PD10 [pin 57]
- PD11 [pin 58]
- PD12 [pin 59]
- PD13 [pin 60]
- PD14 [pin 61]
- PD15 [pin 62]
- PD2 [pin 83]
- PD3 [pin 84]
- PD4 [pin 85]
- PD5 [pin 86]
- PD6 [pin 87]
- PD7 [pin 88]
- PD8 [pin 55]
- PD9 [pin 56]
- PE0 [pin 97]
- PE1 [pin 98]
- PE10 [pin 40]
- PE11 [pin 41]
- PE12 [pin 42]
- PE13 [pin 43]
- PE14 [pin 44]
- PE15 [pin 45]
- PE2 [pin 1]
- PE3 [pin 2]
- PE4 [pin 3]
- PE5 [pin 4]
- PE6 [pin 5]
- PE7 [pin 37]
- PE8 [pin 38]
- PE9 [pin 39]
- PH0 [pin 12]
- PH1 [pin 13]
- VBAT [pin 6]
- VCAP1 [pin 48]
- VCAP2 [pin 73]
- VDD [pin 11]
- VDD [pin 100]
- VDD [pin 27]
- VDD [pin 75]
- VDD [pin 50]
- VDDA [pin 21]
- VREF+ [pin 20]
- VSS [pin 74]
- VSS [pin 49]
- VSS [pin 99]
- VSS [pin 10]
- VSS [pin 26]
- VSSA [pin 19]
### U10 — [SM04B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm04b-ghs-tblfsn.md)
- Connector Rows: 1
- Manufacturer Name: JST
- Package or Case Code: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Connector Type: Headers and Wire Housings
- Current Rating: 1A
- Role Details: Telemetry1, Telemetry2, CAN1, CAN2, and I2C interface connectors
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM04B-GHS-TB-LF-SN_JST-Sales-America-SM04B-GHS-TB-LF-SN_C189895.html
- Manufacturer Part Number: SM04B-GHS-TB(LF)(SN)
- Voltage Rating: 50V
- Part Type: Wire To Board / Wire To Wire Connector
- Package: Right-angle SMD, 1.25 mm pitch, 4-pin
- Operating Temperature: -25°C ~ 85°C
- LCSC Part Number: C189895
- Role: Connector
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM04B-GHS-TB-LF-SN_C189895.pdf
- Connector Pitch: 1.25mm
- Connector Positions: 4
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
### U11 — [SM04B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm04b-ghs-tblfsn.md)
- Connector Rows: 1
- JLCPCB Part Class: Extended Part
- Connector Type: Headers and Wire Housings
- Current Rating: 1A
- Manufacturer Name: JST
- Package or Case Code: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Part Type: Wire To Board / Wire To Wire Connector
- Role Details: Telemetry1, Telemetry2, CAN1, CAN2, and I2C interface connectors
- Voltage Rating: 50V
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM04B-GHS-TB-LF-SN_JST-Sales-America-SM04B-GHS-TB-LF-SN_C189895.html
- Manufacturer Part Number: SM04B-GHS-TB(LF)(SN)
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM04B-GHS-TB-LF-SN_C189895.pdf
- Connector Positions: 4
- Connector Pitch: 1.25mm
- Role: Connector
- Operating Temperature: -25°C ~ 85°C
- LCSC Part Number: C189895
- Package: Right-angle SMD, 1.25 mm pitch, 4-pin
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
### U12 — [SM04B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm04b-ghs-tblfsn.md)
- Manufacturer Part Number: SM04B-GHS-TB(LF)(SN)
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM04B-GHS-TB-LF-SN_JST-Sales-America-SM04B-GHS-TB-LF-SN_C189895.html
- Voltage Rating: 50V
- Part Type: Wire To Board / Wire To Wire Connector
- LCSC Part Number: C189895
- Role Details: Telemetry1, Telemetry2, CAN1, CAN2, and I2C interface connectors
- Operating Temperature: -25°C ~ 85°C
- Connector Pitch: 1.25mm
- Connector Positions: 4
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM04B-GHS-TB-LF-SN_C189895.pdf
- Connector Rows: 1
- Package: Right-angle SMD, 1.25 mm pitch, 4-pin
- Role: Connector
- Package or Case Code: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Manufacturer Name: JST
- Current Rating: 1A
- Connector Type: Headers and Wire Housings
- JLCPCB Part Class: Extended Part
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
### U13 — [SM04B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm04b-ghs-tblfsn.md)
- Voltage Rating: 50V
- Part Type: Wire To Board / Wire To Wire Connector
- Manufacturer Part Number: SM04B-GHS-TB(LF)(SN)
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM04B-GHS-TB-LF-SN_JST-Sales-America-SM04B-GHS-TB-LF-SN_C189895.html
- Package: Right-angle SMD, 1.25 mm pitch, 4-pin
- Role Details: Telemetry1, Telemetry2, CAN1, CAN2, and I2C interface connectors
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM04B-GHS-TB-LF-SN_C189895.pdf
- Connector Pitch: 1.25mm
- Connector Positions: 4
- Operating Temperature: -25°C ~ 85°C
- LCSC Part Number: C189895
- Role: Connector
- Connector Rows: 1
- Connector Type: Headers and Wire Housings
- Current Rating: 1A
- JLCPCB Part Class: Extended Part
- Manufacturer Name: JST
- Package or Case Code: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
### U14 — [SM04B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm04b-ghs-tblfsn.md)
- Role Details: Telemetry1, Telemetry2, CAN1, CAN2, and I2C interface connectors
- Role: Connector
- Connector Rows: 1
- JLCPCB Part Class: Extended Part
- Connector Type: Headers and Wire Housings
- Current Rating: 1A
- Manufacturer Name: JST
- Package or Case Code: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Part Type: Wire To Board / Wire To Wire Connector
- Voltage Rating: 50V
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM04B-GHS-TB-LF-SN_JST-Sales-America-SM04B-GHS-TB-LF-SN_C189895.html
- Manufacturer Part Number: SM04B-GHS-TB(LF)(SN)
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM04B-GHS-TB-LF-SN_C189895.pdf
- Connector Positions: 4
- Connector Pitch: 1.25mm
- Package: Right-angle SMD, 1.25 mm pitch, 4-pin
- Operating Temperature: -25°C ~ 85°C
- LCSC Part Number: C189895
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
### U15 — [SM02B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm02b-ghs-tblfsn.md)
- Voltage Rating: 50V
- LCSC Part Number: C189893
- Connector Pitch: 1.25mm
- Current Rating: 1A
- Package: Right-angle SMD, 1.25 mm pitch, 2-pin
- Connector Rows: 1
- Manufacturer Name: JST
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM02B-GHS-TB-LF-SN_C189893.pdf
- Role: Connector
- Package or Case Code: CONN-SMD_SM02B-GHS-TB-LF-SN
- Part Type: Wire To Board / Wire To Wire Connector
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM02B-GHS-TB-LF-SN_JST-Sales-America-SM02B-GHS-TB-LF-SN_C189893.html
- Operating Temperature: -25℃~+85℃
- Connector Positions: 2
- Manufacturer Part Number: SM02B-GHS-TB(LF)(SN)
- JLCPCB Part Class: Extended Part
- Connector Type: Headers and Wire Housings
- Role Details: Safety switch and Buzzer interface connectors
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
### U16 — [SM02B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm02b-ghs-tblfsn.md)
- Connector Type: Headers and Wire Housings
- JLCPCB Part Class: Extended Part
- Manufacturer Part Number: SM02B-GHS-TB(LF)(SN)
- Connector Positions: 2
- Operating Temperature: -25℃~+85℃
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM02B-GHS-TB-LF-SN_JST-Sales-America-SM02B-GHS-TB-LF-SN_C189893.html
- Package: Right-angle SMD, 1.25 mm pitch, 2-pin
- Part Type: Wire To Board / Wire To Wire Connector
- Package or Case Code: CONN-SMD_SM02B-GHS-TB-LF-SN
- Role Details: Safety switch and Buzzer interface connectors
- Manufacturer Name: JST
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM02B-GHS-TB-LF-SN_C189893.pdf
- Connector Rows: 1
- Role: Connector
- Current Rating: 1A
- Connector Pitch: 1.25mm
- LCSC Part Number: C189893
- Voltage Rating: 50V
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
### U17 — [LTC4359HDCB#TRPBF](https://www.flux.ai/jecstronic/ltc4359hdcbtrpbf.md)
- License: https://creativecommons.org/licenses/by/4.0/
- Package: DFN-6_DCB
- Manufacturer Part Number: LTC4359HDCB#TRPBF
- Role Details: Ideal-diode ORing controller for second 5V input
- Datasheet URL: http://www.analog.com/media/en/technical-documentation/data-sheets/ltc4359.pdf
- Part Type: Integrated Circuit
- Manufacturer Name: Analog Devices Inc.
- Role: Protection
**Pins:**
- *SHDN [pin 5]
- EPAD [pin 7]
- GATE [pin 2]
- IN [pin 4]
- OUT [pin 1]
- SOURCE [pin 3]
- VSS [pin 6]
### U18 — [XC6220B331MR](https://www.flux.ai/kicad-part-library/xc6220b331mr.md)
- Role: Power Conversion
- Package or Case Code: SOT-23-5
- Manufacturer Part Number: XC6220B331MR
- Datasheet URL: https://www.torexsemi.com/file/xc6220/XC6220.pdf
- Role Details: IMU A 3.3V LDO
**Pins:**
- CE [pin 3]
- GND [pin 2]
- NC [pin 4]
- VIN [pin 1]
- VOUT [pin 5]
### U19 — [XC6220B331MR](https://www.flux.ai/kicad-part-library/xc6220b331mr.md)
- Role: Power Conversion
- Role Details: IMU B 3.3V LDO
- Package or Case Code: SOT-23-5
- Datasheet URL: https://www.torexsemi.com/file/xc6220/XC6220.pdf
- Manufacturer Part Number: XC6220B331MR
**Pins:**
- CE [pin 3]
- GND [pin 2]
- NC [pin 4]
- VIN [pin 1]
- VOUT [pin 5]
### U2 — [ICM-42688-P](https://www.flux.ai/jecstronic/icm-42688-p.md)
- License: https://creativecommons.org/licenses/by/4.0/
- Part Type: Sensor
- Role Details: 6-axis IMU on SPI1
- Role: Sensor
- Manufacturer Part Number: ICM-42688-P
- Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/495/ICM-42688-P_DS_Rev1.2.pdf
- Manufacturer Name: TDK InvenSense
**Pins:**
- AP_CS [pin 12]
- AP_SCL/AP_SCLK [pin 13]
- AP_SDA/AP_SDIO/AP_SDI [pin 14]
- AP_SDO/AP_AD0 [pin 1]
- GND [pin 6]
- INT1/INT [pin 4]
- INT2/FSYNC/CLKIN [pin 9]
- RESV_10 [pin 10]
- RESV_11 [pin 11]
- RESV_2 [pin 2]
- RESV_3 [pin 3]
- RESV_7 [pin 7]
- VDD [pin 8]
- VDDIO [pin 5]
### U20 — [XC6220B331MR](https://www.flux.ai/kicad-part-library/xc6220b331mr.md)
- Datasheet URL: https://www.torexsemi.com/file/xc6220/XC6220.pdf
- Manufacturer Part Number: XC6220B331MR
- Package or Case Code: SOT-23-5
- Role: Power Conversion
- Role Details: IMU C 3.3V LDO
**Pins:**
- CE [pin 3]
- GND [pin 2]
- NC [pin 4]
- VIN [pin 1]
- VOUT [pin 5]
### U21 — [MAX40200AUK](https://www.flux.ai/kicad-part-library/max40200auk.md)
- Manufacturer Name: Maxim Integrated Products, Inc.
- Datasheet URL: https://datasheets.maximintegrated.com/en/ds/MAX40200.pdf
- Package or Case Code: SOT-23-5
- Manufacturer Part Number: MAX40200AUK
- Role Details: USB VBUS high-side power switch for the USB_5V branch
- Package: SOT-23-5
- Role: Isolation
**Pins:**
- EN [pin 3]
- GND [pin 2]
- NC [pin 4]
- OUT [pin 5]
- VDD [pin 1]
### U22 — [SN65HVD233HD](https://www.flux.ai/jecstronic/sn65hvd233hd.md)
- Manufacturer Part Number: SN65HVD233HD
- Part Type: Integrated Circuit
- License: https://creativecommons.org/licenses/by/4.0/
- Manufacturer Name: Texas Instruments
- Package: SOIC-8
- Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn65hvd233-ht
- Role Details: 3.3V CAN bus physical-layer transceiver for MCU CAN interface
- Role: Modulation / Demodulation
**Pins:**
- CANH [pin 7]
- CANL [pin 6]
- D [pin 1]
- GND [pin 2]
- LBK [pin 5]
- R [pin 4]
- Rs [pin 8]
- VCC [pin 3]
### U22 — [SM04B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm04b-ghs-tblfsn.md)
- Part Type: Wire To Board / Wire To Wire Connector
- Package: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Voltage Rating: 50V
- Manufacturer Part Number: SM04B-GHS-TB(LF)(SN)
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM04B-GHS-TB-LF-SN_JST-Sales-America-SM04B-GHS-TB-LF-SN_C189895.html
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM04B-GHS-TB-LF-SN_C189895.pdf
- Connector Pitch: 1.25mm
- Connector Positions: 4
- Operating Temperature: -25°C ~ 85°C
- LCSC Part Number: C189895
- Connector Rows: 1
- JLCPCB Part Class: Extended Part
- Role: Connector
- Connector Type: Headers and Wire Housings
- Current Rating: 1A
- Manufacturer Name: JST
- Package or Case Code: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Role Details: Telemetry1 interface connector
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
### U23 — [SM04B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm04b-ghs-tblfsn.md)
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM04B-GHS-TB-LF-SN_JST-Sales-America-SM04B-GHS-TB-LF-SN_C189895.html
- Manufacturer Part Number: SM04B-GHS-TB(LF)(SN)
- Role Details: Telemetry2 interface connector
- Voltage Rating: 50V
- Part Type: Wire To Board / Wire To Wire Connector
- LCSC Part Number: C189895
- Operating Temperature: -25°C ~ 85°C
- Connector Positions: 4
- Connector Pitch: 1.25mm
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM04B-GHS-TB-LF-SN_C189895.pdf
- Connector Rows: 1
- Package or Case Code: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Role: Connector
- Manufacturer Name: JST
- Current Rating: 1A
- Connector Type: Headers and Wire Housings
- Package: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- JLCPCB Part Class: Extended Part
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
### U24 — [SM04B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm04b-ghs-tblfsn.md)
- Connector Type: Headers and Wire Housings
- Current Rating: 1A
- JLCPCB Part Class: Extended Part
- Package: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Manufacturer Name: JST
- Package or Case Code: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Connector Rows: 1
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM04B-GHS-TB-LF-SN_C189895.pdf
- Connector Positions: 4
- Connector Pitch: 1.25mm
- Role: Connector
- Role Details: CAN1 interface connector
- Operating Temperature: -25°C ~ 85°C
- LCSC Part Number: C189895
- Voltage Rating: 50V
- Part Type: Wire To Board / Wire To Wire Connector
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM04B-GHS-TB-LF-SN_JST-Sales-America-SM04B-GHS-TB-LF-SN_C189895.html
- Manufacturer Part Number: SM04B-GHS-TB(LF)(SN)
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
### U25 — [SM04B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm04b-ghs-tblfsn.md)
- Connector Rows: 1
- Role Details: CAN2 interface connector
- Manufacturer Name: JST
- Package or Case Code: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Connector Type: Headers and Wire Housings
- Current Rating: 1A
- JLCPCB Part Class: Extended Part
- Manufacturer Part Number: SM04B-GHS-TB(LF)(SN)
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM04B-GHS-TB-LF-SN_JST-Sales-America-SM04B-GHS-TB-LF-SN_C189895.html
- Voltage Rating: 50V
- Package: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Part Type: Wire To Board / Wire To Wire Connector
- Role: Connector
- Operating Temperature: -25°C ~ 85°C
- LCSC Part Number: C189895
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM04B-GHS-TB-LF-SN_C189895.pdf
- Connector Positions: 4
- Connector Pitch: 1.25mm
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
### U26 — [SM04B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm04b-ghs-tblfsn.md)
- Current Rating: 1A
- Connector Type: Headers and Wire Housings
- JLCPCB Part Class: Extended Part
- Package: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Package or Case Code: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Manufacturer Name: JST
- Role: Connector
- Connector Rows: 1
- Connector Positions: 4
- Connector Pitch: 1.25mm
- Role Details: I2C interface connector
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM04B-GHS-TB-LF-SN_C189895.pdf
- LCSC Part Number: C189895
- Operating Temperature: -25°C ~ 85°C
- Voltage Rating: 50V
- Part Type: Wire To Board / Wire To Wire Connector
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM04B-GHS-TB-LF-SN_JST-Sales-America-SM04B-GHS-TB-LF-SN_C189895.html
- Manufacturer Part Number: SM04B-GHS-TB(LF)(SN)
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
### U27 — [SM04B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm04b-ghs-tblfsn.md)
- Operating Temperature: -25°C ~ 85°C
- LCSC Part Number: C189895
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM04B-GHS-TB-LF-SN_C189895.pdf
- Connector Pitch: 1.25mm
- Connector Positions: 4
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM04B-GHS-TB-LF-SN_JST-Sales-America-SM04B-GHS-TB-LF-SN_C189895.html
- Manufacturer Part Number: SM04B-GHS-TB(LF)(SN)
- Part Type: Wire To Board / Wire To Wire Connector
- Voltage Rating: 50V
- Role: Connector
- Manufacturer Name: JST
- Package: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Package or Case Code: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- JLCPCB Part Class: Extended Part
- Role Details: RC IN interface connector
- Connector Type: Headers and Wire Housings
- Current Rating: 1A
- Connector Rows: 1
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
### U28 — [SM02B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm02b-ghs-tblfsn.md)
- JLCPCB Part Class: Extended Part
- Manufacturer Part Number: SM02B-GHS-TB(LF)(SN)
- Connector Positions: 2
- Role: Connector
- Connector Type: Headers and Wire Housings
- Part Type: Wire To Board / Wire To Wire Connector
- Package or Case Code: CONN-SMD_SM02B-GHS-TB-LF-SN
- Operating Temperature: -25℃~+85℃
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM02B-GHS-TB-LF-SN_JST-Sales-America-SM02B-GHS-TB-LF-SN_C189893.html
- Package: CONN-SMD_SM02B-GHS-TB-LF-SN
- Connector Rows: 1
- Manufacturer Name: JST
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM02B-GHS-TB-LF-SN_C189893.pdf
- LCSC Part Number: C189893
- Voltage Rating: 50V
- Current Rating: 1A
- Role Details: Safety switch interface connector
- Connector Pitch: 1.25mm
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
### U29 — [SM02B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm02b-ghs-tblfsn.md)
- Current Rating: 1A
- Role Details: Buzzer interface connector
- Connector Pitch: 1.25mm
- LCSC Part Number: C189893
- Voltage Rating: 50V
- Manufacturer Name: JST
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM02B-GHS-TB-LF-SN_C189893.pdf
- Connector Rows: 1
- Package: CONN-SMD_SM02B-GHS-TB-LF-SN
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM02B-GHS-TB-LF-SN_JST-Sales-America-SM02B-GHS-TB-LF-SN_C189893.html
- Operating Temperature: -25℃~+85℃
- Role: Connector
- Part Type: Wire To Board / Wire To Wire Connector
- Package or Case Code: CONN-SMD_SM02B-GHS-TB-LF-SN
- Connector Type: Headers and Wire Housings
- JLCPCB Part Class: Extended Part
- Manufacturer Part Number: SM02B-GHS-TB(LF)(SN)
- Connector Positions: 2
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
### U3 — [BMI088](https://www.flux.ai/lcsc/bmi088.md)
- Operating Temperature: -40℃~+85℃
- Output Type: I2C, SPI
- JLCPCB Part Class: Extended Part
- Sensor Type: Accelerometer gyroscope
- Manufacturer Part Number: BMI088
- Role Details: 6-axis IMU on SPI2
- LCSC Part Number: C194919
- Manufacturer Name: Bosch(博世)
- Package or Case Code: LGA-16_L4.5-W3.0-P0.50-BL
- Role: Sensor
- Product Info Url: https://lcsc.com/product-detail/Others_Bosch-Sensortec_BMI088_Bosch-Sensortec-BMI088_C194919.html
- Part Type: Motion Sensors - Accelerometers
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1811031202_Bosch-Sensortec-BMI088_C194919.pdf
**Pins:**
- CSB1 [pin 14]
- CSB2 [pin 5]
- GNDA [pin 4]
- GNDIO [pin 6]
- INT1 [pin 16]
- INT2 [pin 1]
- INT3 [pin 12]
- INT4 [pin 13]
- NC [pin 2]
- PS [pin 7]
- SCL/SCK [pin 8]
- SDA/SDI [pin 9]
- SDO1 [pin 15]
- SDO2 [pin 10]
- VDD [pin 3]
- VDDIO [pin 11]
### U30 — [SM04B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm04b-ghs-tblfsn.md)
- Part Type: Wire To Board / Wire To Wire Connector
- Voltage Rating: 50V
- Manufacturer Part Number: SM04B-GHS-TB(LF)(SN)
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM04B-GHS-TB-LF-SN_JST-Sales-America-SM04B-GHS-TB-LF-SN_C189895.html
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM04B-GHS-TB-LF-SN_C189895.pdf
- Connector Pitch: 1.25mm
- Connector Positions: 4
- Operating Temperature: -25°C ~ 85°C
- LCSC Part Number: C189895
- Package: Right-angle SMD, 1.25 mm pitch, 4-pin
- Connector Rows: 1
- JLCPCB Part Class: Extended Part
- Role: Connector
- Connector Type: Headers and Wire Housings
- Current Rating: 1A
- Role Details: Telemetry1, Telemetry2, CAN1, CAN2, and I2C interface connector
- Manufacturer Name: JST
- Package or Case Code: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
### U31 — [SM04B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm04b-ghs-tblfsn.md)
- Connector Rows: 1
- Connector Type: Headers and Wire Housings
- Current Rating: 1A
- JLCPCB Part Class: Extended Part
- Role Details: Telemetry1, Telemetry2, CAN1, CAN2, and I2C interface connector
- Manufacturer Name: JST
- Package or Case Code: CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN
- Voltage Rating: 50V
- Role: Connector
- Part Type: Wire To Board / Wire To Wire Connector
- Manufacturer Part Number: SM04B-GHS-TB(LF)(SN)
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM04B-GHS-TB-LF-SN_JST-Sales-America-SM04B-GHS-TB-LF-SN_C189895.html
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM04B-GHS-TB-LF-SN_C189895.pdf
- Connector Pitch: 1.25mm
- Package: Right-angle SMD, 1.25 mm pitch, 4-pin
- Connector Positions: 4
- Operating Temperature: -25°C ~ 85°C
- LCSC Part Number: C189895
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
### U32 — [SM02B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm02b-ghs-tblfsn.md)
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM02B-GHS-TB-LF-SN_JST-Sales-America-SM02B-GHS-TB-LF-SN_C189893.html
- Operating Temperature: -25℃~+85℃
- Package or Case Code: CONN-SMD_SM02B-GHS-TB-LF-SN
- Part Type: Wire To Board / Wire To Wire Connector
- Connector Type: Headers and Wire Housings
- Connector Positions: 2
- Role: Connector
- Manufacturer Part Number: SM02B-GHS-TB(LF)(SN)
- Package: Right-angle SMD, 1.25 mm pitch, 2-pin
- JLCPCB Part Class: Extended Part
- Connector Pitch: 1.25mm
- Current Rating: 1A
- Voltage Rating: 50V
- LCSC Part Number: C189893
- Manufacturer Name: JST
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM02B-GHS-TB-LF-SN_C189893.pdf
- Role Details: Safety switch and Buzzer interface connector
- Connector Rows: 1
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
### U33 — [SM02B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm02b-ghs-tblfsn.md)
- Part Type: Wire To Board / Wire To Wire Connector
- Package or Case Code: CONN-SMD_SM02B-GHS-TB-LF-SN
- Operating Temperature: -25℃~+85℃
- Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_SM02B-GHS-TB-LF-SN_JST-Sales-America-SM02B-GHS-TB-LF-SN_C189893.html
- Role Details: Safety switch and Buzzer interface connector
- Manufacturer Part Number: SM02B-GHS-TB(LF)(SN)
- JLCPCB Part Class: Extended Part
- Connector Positions: 2
- Connector Type: Headers and Wire Housings
- LCSC Part Number: C189893
- Voltage Rating: 50V
- Current Rating: 1A
- Connector Pitch: 1.25mm
- Connector Rows: 1
- Role: Connector
- Package: Right-angle SMD, 1.25 mm pitch, 2-pin
- Manufacturer Name: JST
- Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM02B-GHS-TB-LF-SN_C189893.pdf
**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
### U4 — [ICM-20649](https://www.flux.ai/vasyl/icm-20649.md)
- Manufacturer Name: TDK InvenSense
- Datasheet URL: https://invensense.tdk.com/wp-content/uploads/2021/07/DS-000192-ICM-20649-v1.1.pdf
- Role Details: 6-axis IMU on SPI3
- Role: Sensor
- Manufacturer Part Number: ICM-20649
- Part Type: IMU
- License: https://creativecommons.org/licenses/by/4.0/
**Pins:**
- AD0/SDO [pin 9]
- AUX_CL [pin 7]
- AUX_DA [pin 21]
- FSYNC [pin 11]
- GND [pin 18]
- INT1 [pin 12]
- INT2 [pin 19]
- NCS [pin 22]
- REGOUT [pin 10]
- RESV [pin 20]
- SCL/SCLK [pin 23]
- SDA/SDI [pin 24]
- VDD [pin 13]
- VDDIO [pin 8]
### U5 — [BMP388](https://www.flux.ai/adrian95/bmp388.md)
- Role Details: Barometric pressure sensor on I2C
- Manufacturer Name: BOSCH
- Role: Sensor
- License: https://creativecommons.org/licenses/by/4.0/
- Manufacturer Part Number: BMP388
- Package or Case Code: PQFN50P200X200X80-10N
- Part Type: Sensor
- Datasheet URL: https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmp388-ds001.pdf
**Pins:**
- CSB [pin 6]
- INT [pin 7]
- SCK [pin 2]
- SDI [pin 4]
- SDO [pin 5]
- VDD [pin 10]
- VDDIO [pin 1]
- VSS [pin 8]
- VSS [pin 9]
- VSS [pin 3]
### U6 — [LTC4359HDCB#TRPBF](https://www.flux.ai/jecstronic/ltc4359hdcbtrpbf.md)
- Part Type: Integrated Circuit
- Manufacturer Name: Analog Devices Inc.
- Role Details: Ideal-diode ORing controller for dual 5V inputs
- Manufacturer Part Number: LTC4359HDCB#TRPBF
- ExpectedCurrent: 3.2A
- Datasheet URL: http://www.analog.com/media/en/technical-documentation/data-sheets/ltc4359.pdf
- Role: Power Management
- License: https://creativecommons.org/licenses/by/4.0/
**Pins:**
- *SHDN [pin 5]
- EPAD [pin 7]
- GATE [pin 2]
- IN [pin 4]
- OUT [pin 1]
- SOURCE [pin 3]
- VSS [pin 6]
### U7 — [XC6220B331MR](https://www.flux.ai/kicad-part-library/xc6220b331mr.md)
- Datasheet URL: https://www.torexsemi.com/file/xc6220/XC6220.pdf
- Package: SOT-23-5
- Role Details: MCU 3.3V regulator
- Manufacturer Part Number: XC6220B331MR
- Role: Power Conversion
- Package or Case Code: SOT-23-5
**Pins:**
- CE [pin 3]
- GND [pin 2]
- NC [pin 4]
- VIN [pin 1]
- VOUT [pin 5]
### U8 — [XC6220B331MR](https://www.flux.ai/kicad-part-library/xc6220b331mr.md)
- Role: Power Conversion
- Manufacturer Part Number: XC6220B331MR
- Datasheet URL: https://www.torexsemi.com/file/xc6220/XC6220.pdf
- Role Details: Sensor 3.3V regulator
- Package or Case Code: SOT-23-5
- Package: SOT-23-5
**Pins:**
- CE [pin 3]
- GND [pin 2]
- NC [pin 4]
- VIN [pin 1]
- VOUT [pin 5]
### U9 — [MAX803TEXR+T](https://www.flux.ai/jpseel4nd/max803texrplust.md)
- Role: Protection
- License: https://creativecommons.org/licenses/by/4.0/
- Manufacturer Part Number: MAX803TEXR+T
- Part Type: Integrated Circuit
- Datasheet URL: https://www.mouser.de/datasheet/2/609/MAX803_MAX810Z-3130472.pdf
- Manufacturer Name: MAX803T
- Package: SOT-23
- Role Details: Brown-out reset supervisor for MCU
**Pins:**
- GND [pin 1]
- RST [pin 2]
- VCC [pin 3]
### Y1 — [FOXSDLF/080-20](https://www.flux.ai/adrian95/foxsdlf080-20.md)
- Role Details: HSE 8MHz crystal for MCU OSC_IN/OSC_OUT
- License: https://creativecommons.org/licenses/by/4.0/
- Package: HC-49/SDLF
- Datasheet URL: https://abracon.com/datasheets/Fox/FC4SD.pdf?utm_source=foxonline.com&utm_medium=301
- Role: Oscillator Crystal
- Manufacturer Part Number: Fox Electronics
- Part Type: Oscillator
- Manufacturer Name: FOXSDLF/080-20
**Pins:**
- P1 [pin 1]
- P2 [pin 2]
### Y2 — [Q13FC13500005](https://www.flux.ai/lcsc/q13fc13500005.md)
- Package: SMD3215-2P
- Role: Oscillator Crystal
- Role Details: LSE 32.768kHz crystal for MCU PC14/PC15
- Frequency: 32.768kHz
- Manufacturer Name: EPSON(爱普生)
- Manufacturer Part Number: Q13FC13500005
- Package or Case Code: CRYSTAL-SMD_L3.2-W1.5
- Load Capacitor: 12.5pF
- Part Type: Crystals
- JLCPCB Part Class: Extended Part
- Operating Temperature: -40℃~+85℃
- LCSC Part Number: C841881
**Pins:**
- 1 [pin 1]
- GND [pin 2]
*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/spaceboxinc/fcboard](https://www.flux.ai/spaceboxinc/fcboard).*
---
*Generated from [https://www.flux.ai/spaceboxinc/fcboard](https://www.flux.ai/spaceboxinc/fcboard)*