# Cognitive Lavender Lightcycle ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** ahmetefe - **Created:** 2/14/2026 - **Last Updated:** 2/14/2026 - **Visibility:** Public - **System Architecture:** flowchart TD subgraph PowerEntry[Power Entry and Protection] J1[VIN JST-GH 2P] F1[PTC Fuse] D2[Schottky Series] D1[TVS to GND] U1[AP1117-3.3] end subgraph Rails[Power Rails] V5[+5V] V33[+3V3] GND1[GND] end subgraph Debug[Debug] J5[ARM SWD 2x5 1.27] end subgraph SensorsStorage[Sensors and Storage] U3[ICM-42688 SPI] U4[BMP388 I2C] U5[2nd IMU optional] J2[microSD SPI] end subgraph Comms[External UART] J3[UART1 JST-GH 6P] J4[UART2 JST-GH 6P] ESD1[ESD Array UART1] ESD2[ESD Array UART2] end J1 --> F1 --> D2 --> V5 V5 --> D1 --> GND1 V5 --> U1 --> V33 V33 --> Debug V33 --> SensorsStorage V33 --> Comms ## Key Components ### CN1 — [BM02B-GHS-TBT(LF)(SN)](https://www.flux.ai/lcsc/bm02b-ghs-tbtlfsn.md) - Role: Connector - Package: BM02B-GHS-TBT(LF)(SN) - LCSC Part Number: C161690 - Manufacturer Part Number: BM02B-GHS-TBT(LF)(SN) - Part Type: Wire To Board / Wire To Wire Connector - Role Details: VIN power input JST-GH 2-pin (1.25 mm pitch) - Product Info Url: https://lcsc.com/product-detail/Connectors_JST_BM02B-GHS-TBT-LF-SN_GHseries-socket-1-2P-pitch1-25mm-SMD_C161690.html - Manufacturer Name: JST - Package or Case Code: CONN-SMD_2P-P1.25_BM02B-GHS-TBT-LF-SN - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010302_JST-BM02B-GHS-TBT-LF-SN_C161690.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### CN2 — [SM06B-GHS-TB(LF)(SN)](https://www.flux.ai/lcsc/sm06b-ghs-tblfsn.md) - Connector Rows: 1 - Part Type: Wire To Board / Wire To Wire Connector - Role: Connector - LCSC Part Number: C133065 - JLCPCB Part Class: Extended Part - Manufacturer Name: JST - Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN - Package: SM06B-GHS-TB(LF)(SN) - 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 - Connector Gender: Female - Connector Pitch: 2mm - Role Details: JST-GH 6-pin (1.25 mm) UART connector - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf - Connector Type: Wire-to-Board - 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) - Package: SM06B-GHS-TB(LF)(SN) - Role Details: JST-GH 6-pin (1.25 mm) UART connector - Connector Rows: 1 - Part Type: Wire To Board / Wire To Wire Connector - LCSC Part Number: C133065 - JLCPCB Part Class: Extended Part - Manufacturer Name: JST - Role: Connector - Package or Case Code: CONN-TH_SM06B-GHS-TB-LF-SN - Connector Positions: 6 - 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 Pitch: 2mm - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-SM06B-GHS-TB-LF-SN_C133065.pdf - Connector Type: Wire-to-Board - 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] ### D1 — [SMBJ5.0A](https://www.flux.ai/adrian95/smbj5p0a.md) - Part Type: Diode - Manufacturer Part Number: SMBJ5.0A - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.littelfuse.com/~/media/electronics/datasheets/tvs_diodes/littelfuse_tvs_diode_smbj_datasheet.pdf.pdf - Role: Protection - Role Details: TVS diode from +5V to GND at power entry - Manufacturer Name: Littelfuse Inc. **Pins:** - A [pin 2] - K [pin 1] ### D2 — [SS14](https://www.flux.ai/jecstronic/ss14.md) - Manufacturer Part Number: SS14 - Package: SMA - Role: Protection - Manufacturer Name: Slkor(SLKORMICRO Elec.) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Diode - Role Details: Series Schottky diode from +5V_RAW (post-PTC) to +5V rail - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_Slkor-SLKORMICRO-Elec--SS14_C444721.pdf **Pins:** - Anode [pin A] - Cathode [pin C] ### F1 — [0ZCJ0050FF2G](https://www.flux.ai/adrian95/0zcj0050ff2g.md) - Part Type: Fuse - Datasheet URL: https://www.belfuse.com/resources/datasheets/circuitprotection/ds-cp-0zcj-series.pdf - Manufacturer Part Number: 0ZCJ0050FF2G - Role: Protection - Manufacturer Name: Bel Fuse Inc. - Role Details: 500mA resettable fuse on VIN input - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] - P2 [pin 2] ### J1 — [FTSH-105-01-L-DV-007-K](https://www.flux.ai/vasy_skral/ftsh-105-01-l-dv-007-k.md) - Part Type: Connector - Role: Connector - Datasheet URL: https://suddendocs.samtec.com/catalog_english/ftsh_smt.pdf - Manufacturer Part Number: FTSH-105-01-L-DV-007-K - Role Details: ARM Cortex SWD header 2x5 1.27 mm - Package: 1.27mm 2x5 - Manufacturer Name: Analog Devices **Pins:** - P1 [pin 1] - P10 [pin 10] - P2 [pin 2] - P3 [pin 3] - P4 [pin 4] - P5 [pin 5] - P6 [pin 6] - P8 [pin 8] - P9 [pin 9] ### J2 — [DM3AT-SF-PEJM5](https://www.flux.ai/adrian95/dm3at-sf-pejm5.md) - Datasheet URL: https://www.mouser.com/datasheet/2/185/DM3AT_SF_PEJM5_CL0609_0031_0_00_2DDrawing_00009471-1614303.pdf - Role Details: microSD card socket wired for SPI mode with dedicated CS - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Hirose Electric Co Ltd - Manufacturer Part Number: DM3AT-SF-PEJM5 - Role: Connector - Package: microSD **Pins:** - ~ [pin SWA] - ~ [pin SWB] - CD/DAT3 [pin 2] - CLK [pin 5] - CMD [pin 3] - DAT0 [pin 7] - DAT1 [pin 8] - DAT2 [pin 1] - SHIELD [pin P3] - SHIELD [pin P4] - SHIELD [pin P1] - SHIELD [pin P2] - VDD [pin 4] - VSS [pin 6] ### U1 — [AP1117E33G-13](https://www.flux.ai/adrian95/ap1117e33g-13.md) - Manufacturer Part Number: AP1117E33G-13 - Role Details: AP1117-3.3 LDO generating +3V3 from +5V - License: https://creativecommons.org/licenses/by/4.0/ - Role: Regulator - Part Type: Integrated Circuit - Manufacturer Name: Diodes Incorporated - Datasheet URL: https://octopart.com/datasheet/ap1117e33g-13-diodes+inc.-669494 **Pins:** - GND [pin 1] - VI [pin 3] - VO [pin 2] ### U2 — [USBLC6-4SC6](https://www.flux.ai/kicad-part-library/usblc6-4sc6.md) - Manufacturer Part Number: USBLC6-4SC6 - Role: Protection - Manufacturer Name: Texas Instruments Inc. - Package: SOT-23-6 - Datasheet URL: https://www.st.com/resource/en/datasheet/usblc6-4.pdf - Role Details: ESD diode array for UART connector signals to GND - Package or Case Code: SOT-23-6 **Pins:** - GND [pin 2] - I/O1 [pin 1] - I/O2 [pin 3] - I/O3 [pin 4] - I/O4 [pin 6] - VBUS [pin 5] ### U3 — [USBLC6-4SC6](https://www.flux.ai/kicad-part-library/usblc6-4sc6.md) - Manufacturer Part Number: USBLC6-4SC6 - Role Details: ESD diode array for UART connector signals to GND - Package: SOT-23-6 - Manufacturer Name: Texas Instruments Inc. - Package or Case Code: SOT-23-6 - Datasheet URL: https://www.st.com/resource/en/datasheet/usblc6-4.pdf - Role: Protection **Pins:** - GND [pin 2] - I/O1 [pin 1] - I/O2 [pin 3] - I/O3 [pin 4] - I/O4 [pin 6] - VBUS [pin 5] ### U4 — [STM32F407VET6](https://www.flux.ai/vasy_skral/stm32f407vet6.md) - Manufacturer Name: STMicroelectronics - Part Type: Microcontroller - Role: MCU - Manufacturer Part Number: STM32F407VET6 - Role Details: Main MCU for avionics board; SWD debug, SPI (IMU, microSD), I2C (BMP388), UART1/2 - License: https://creativecommons.org/licenses/by/4.0/ - Package: LQFP-100 - Datasheet URL: http://www.st.com/content/ccc/resource/technical/document/datasheet/ef/92/76/6d/bb/c2/4f/f7/DM00037051.pdf/files/DM00037051.pdf/jcr:content/translations/en.DM00037051.pdf **Pins:** - BOOT0 [pin 94] - NRST [pin 14] - PA0 [pin 23] - PA1 [pin 24] - PA10 [pin 69] - PA11 [pin 70] - PA12 [pin 71] - PA13 [pin 72] - PA14 [pin 76] - PA15 [pin 77] - PA2 [pin 25] - PA3 [pin 26] - PA4 [pin 29] - PA5 [pin 30] - PA6 [pin 31] - PA7 [pin 32] - PA8 [pin 67] - PA9 [pin 68] - PB0 [pin 35] - PB1 [pin 36] - PB10 [pin 47] - PB11 [pin 48] - PB12 [pin 51] - PB13 [pin 52] - PB14 [pin 53] - PB15 [pin 54] - PB2 [pin 37] - 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 [pin 17] - PC3 [pin 18] - PC4 [pin 33] - PC5 [pin 34] - 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 41] - PE11 [pin 42] - PE12 [pin 43] - PE13 [pin 44] - PE14 [pin 45] - PE15 [pin 46] - PE2 [pin 1] - PE3 [pin 2] - PE4 [pin 3] - PE5 [pin 4] - PE6 [pin 5] - PE7 [pin 38] - PE8 [pin 39] - PE9 [pin 40] - PH0 [pin 12] - PH1 [pin 13] - VBAT [pin 6] - VCAP_1 [pin 49] - VCAP_2 [pin 73] - VDD [pin 50] - VDD [pin 75] - VDD [pin 11] - VDD [pin 28] - VDD [pin 19] - VDD [pin 100] - VDDA [pin 22] - VREF+ [pin 21] - VSS [pin 10] - VSS [pin 74] - VSS [pin 99] - VSS [pin 27] - VSSA [pin 20] ### U5 — [ICM-42688-P](https://www.flux.ai/jecstronic/icm-42688-p.md) - Manufacturer Name: TDK InvenSense - Manufacturer Part Number: ICM-42688-P - Part Type: Sensor - Role Details: Primary IMU on SPI bus (ICM-42688) - Role: Sensor - License: https://creativecommons.org/licenses/by/4.0/ - Package: LGA-14 - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/495/ICM-42688-P_DS_Rev1.2.pdf **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] ### U6 — [BMP388](https://www.flux.ai/adrian95/bmp388.md) - Role: Sensor - Manufacturer Name: BOSCH - Part Type: Sensor - Manufacturer Part Number: BMP388 - Package: WFLGA-10 - Datasheet URL: https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmp388-ds001.pdf - Role Details: Barometer sensor on I2C bus (BMP388) - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: PQFN50P200X200X80-10N **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] ### U7 — [ICM-42688-P](https://www.flux.ai/jecstronic/icm-42688-p.md) - Role Details: Optional second IMU footprint on SPI bus (ICM-42688) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/495/ICM-42688-P_DS_Rev1.2.pdf - Manufacturer Part Number: ICM-42688-P - Package: LGA-14 - Manufacturer Name: TDK InvenSense - Role: Sensor - Part Type: Sensor **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] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/ahmetefe/cognitive-lavender-lightcycle](https://www.flux.ai/ahmetefe/cognitive-lavender-lightcycle).* --- *Generated from [https://www.flux.ai/ahmetefe/cognitive-lavender-lightcycle](https://www.flux.ai/ahmetefe/cognitive-lavender-lightcycle)*