# TVC Rocket Flight Controller ## Description STM32F405-based TVC rocket flight controller with redundant IMU/barometer sensors, dual telemetry, dual power rails, servo/pyro outputs, SD logging, watchdog, USB-C, and SWD debug, reconstructed from the uploaded reference schematic image. ## Project Details - **Owner:** parkerhs18 - **Created:** 5/15/2026 - **Last Updated:** 5/16/2026 - **Visibility:** Public - **Domain:** Aerospace / Rocket Avionics - **Connectivity:** USB-C debug/programming, SWD, dual telemetry (LoRa/SX1276 and HC-12 433MHz), GPS UART optional, I2C expansion - **Power Requirements:** 2S LiPo battery input with redundant 5V buck conversion, 3.3V logic regulation, input protection, and current monitoring - **Operating Voltage:** 2S LiPo input 7.4V nominal, 8.4V max; 5V servo rail; 3.3V logic rail - **Implementation Details:** Reference image shows STM32F405RGT6 MCU, dual MPU-42688 IMUs, dual MS5611 barometers, INA226 battery monitor, MP1584EN 5V bucks, AMS1117-3.3 LDO, SD card, watchdog, servo and pyro connectors. ## Key Components ### D1 — [SS54B](https://www.flux.ai/adrian95/ss54b~g3u.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SS54B - Manufacturer Name: MDD - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/NextGen%20Components%20PDFs/SMBSS540000S54.pdf - Role: Rectification - Role Details: Schottky diode ORing main 5V buck output into combined +5V_SERVO rail - Part Type: Diode **Pins:** - A [pin 2] - K [pin 1] ### D2 — [SS54B](https://www.flux.ai/adrian95/ss54b~g3u.md) - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/NextGen%20Components%20PDFs/SMBSS540000S54.pdf - Manufacturer Name: MDD - Role Details: Schottky diode ORing backup 5V buck output into combined +5V_SERVO rail - Manufacturer Part Number: SS54B - License: https://creativecommons.org/licenses/by/4.0/ - Role: Rectification - Part Type: Diode **Pins:** - A [pin 2] - K [pin 1] ### D4 — [SS14](https://www.flux.ai/jecstronic/ss14~ri4.md) - Role: Reverse Polarity Protection - Role Details: Input reverse polarity protection on protected battery input - Manufacturer Part Number: SS14 - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_Slkor-SLKORMICRO-Elec--SS14_C444721.pdf - Manufacturer Name: Slkor(SLKORMICRO Elec.) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Diode **Pins:** - Anode [pin A] - Cathode [pin C] ### D5 — [1N5819HW-7-F](https://www.flux.ai/jecstronic/1n5819hw-7-f~x5v.md) - Part Type: Diode - Role: Flyback / Freewheeling - Role Details: Protection diode for pyro channel 1 output load - Manufacturer Name: Diodes Incorporated - Manufacturer Part Number: 1N5819HW-7-F - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30217.pdf **Pins:** - A [pin 2] - K [pin 1] ### D6 — [1N5819HW-7-F](https://www.flux.ai/jecstronic/1n5819hw-7-f~x5v.md) - Role Details: Protection diode for pyro channel 2 output load - Part Type: Diode - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30217.pdf - Role: Flyback / Freewheeling - Manufacturer Name: Diodes Incorporated - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1N5819HW-7-F **Pins:** - A [pin 2] - K [pin 1] ### J1 — [282858-2](https://www.flux.ai/lcsc/282858-2~a1vo.md) - JLCPCB Part Class: Extended Part - Role Details: 2-pin battery input connector for 2S LiPo source - Manufacturer Name: TE Connectivity(泰科电子) - LCSC Part Number: C306150 - Part Type: Screw terminal - Datasheet URL: https://assets.lcsc.com/datasheet/szlcsc/Download-ISO9001-Certification.pdf - Manufacturer Part Number: 282858-2 - Product Info Url: https://lcsc.com/product-detail/Others_TE-Connectivity_282858-2_TE-Connectivity-282858-2_C306150.html - Package or Case Code: CONN-TH_2P-P10.00_L10.0-W15.0 - Role: Power Conversion **Pins:** - 1 [pin 1] - 2 [pin 2] ### J10 — [DM3CS-SF](https://www.flux.ai/adrian95/dm3cs-sf~vn.md) - Manufacturer Part Number: DM3CS-SF - Manufacturer Name: Hirose Electric Co Ltd - Role Details: microSD connector for SPI/SDIO flight data logging - Part Type: Connector - Role: SD Card Connector - Datasheet URL: https://www.hirose.com/product/document?clcode=CL0609-0033-6-00&productname=DM3AT-SF-PEJ2M5&series=DM3&documenttype=Catalog&lang=en&documentid=D49662_en - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - CD/DAT3 [pin 2] - CLK [pin 5] - CMD [pin 3] - DAT0 [pin 7] - DAT1 [pin 8] - DAT2 [pin 1] - MP1 [pin MP1] - MP2 [pin MP2] - MP3 [pin MP3] - MP4 [pin MP4] - MP5 [pin MP5] - VDD [pin 4] - VSS [pin 6] ### J11 — [USB4215-03-A](https://www.flux.ai/adrian95/usb4215-03-a~kg3.md) - Manufacturer Part Number: USB4215-03-A - Role Details: USB 2.0 Type-C receptacle for USB programming/debug/power; CC pull-downs required - Part Type: USB C - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://gct.co/files/specs/usb4215-spec.pdf - Role: USB-C Connector - Manufacturer Name: GCT - Package or Case Code: GCT_USB4215-03-A_REVA - Symbol Style: parametric-v1 **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND_A [pin A1_B12] - GND_B [pin B1_A12] - SBU1 [pin A8] - SBU2 [pin B8] - SHIELD [pin SH1] - SHIELD [pin SH4] - SHIELD [pin SH2] - SHIELD [pin SH3] - VBUS_A [pin A4_B9] - VBUS_B [pin B4_A9] ### J12 — [282858-2](https://www.flux.ai/lcsc/282858-2~a1vo.md) - Datasheet URL: https://assets.lcsc.com/datasheet/szlcsc/Download-ISO9001-Certification.pdf - Part Type: Screw terminal - Role Details: External screw-terminal on/off switch loop between battery positive input and protected power path; use a switch rated for the full input current - LCSC Part Number: C306150 - Manufacturer Name: TE Connectivity(泰科电子) - Package or Case Code: CONN-TH_2P-P10.00_L10.0-W15.0 - Product Info Url: https://lcsc.com/product-detail/Others_TE-Connectivity_282858-2_TE-Connectivity-282858-2_C306150.html - Manufacturer Part Number: 282858-2 - JLCPCB Part Class: Extended Part - Role: Switching **Pins:** - 1 [pin 1] - 2 [pin 2] ### J13 — [AVR-PDI-6](https://www.flux.ai/vasy_skral/avr-pdi-6~4n7.md) - Role Details: Telemetry Port 1: 3V3, GND, UART2 TX/RX, reset, enable for external radio module - Manufacturer Name: Würth Elektronik - Manufacturer Part Number: 61200621621 - Datasheet URL: https://www.we-online.com/catalog/datasheet/61200621621.pdf - Part Type: Connector - Role: Connector - Exclude from BOM: false **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] ### J14 — [AVR-PDI-6](https://www.flux.ai/vasy_skral/avr-pdi-6~4n7.md) - Role Details: Telemetry Port 2: 3V3, GND, UART6 TX/RX, reset, enable for external radio module - Role: Connector - Manufacturer Part Number: 61200621621 - Manufacturer Name: Würth Elektronik - Part Type: Connector - Datasheet URL: https://www.we-online.com/catalog/datasheet/61200621621.pdf - Exclude from BOM: false **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] ### J2 — [AVR-PDI-6](https://www.flux.ai/vasy_skral/avr-pdi-6~4n7.md) - Part Type: Connector - Datasheet URL: https://www.we-online.com/catalog/datasheet/61200621621.pdf - Exclude from BOM: false - Role Details: 6-pin 2.54mm debug connector repurposed for SWD VTREF, SWDIO, SWCLK, NRST, GND, SWO - Manufacturer Part Number: 61200621621 - Manufacturer Name: Würth Elektronik - Role: Signal Generation **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] ### J5 — [22052051](https://www.flux.ai/lcsc/22052051~la4y.md) - Part Type: Pin Headers - Datasheet URL: https://assets.lcsc.com/datasheet/szlcsc/Download-ISO9001-Certification.pdf - LCSC Part Number: C586988 - Manufacturer Part Number: 22052051 - Package or Case Code: HDR-TH_5P-P2.54H-M-W9.5 - Role: Signal Generation - Manufacturer Name: MOLEX - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Pre-ordered-Products_MOLEX_22052051_MOLEX-22052051_C586988.html - Role Details: 5-pin header carrying +5V_SERVO, GND, and four STM32 PWM servo outputs **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] ### J6 — [282858-2](https://www.flux.ai/lcsc/282858-2~a1vo.md) - Role Details: 2-pin external pyro channel 1 connector; external power/load limits must be specified - LCSC Part Number: C306150 - Manufacturer Name: TE Connectivity(泰科电子) - Datasheet URL: https://assets.lcsc.com/datasheet/szlcsc/Download-ISO9001-Certification.pdf - Part Type: Screw terminal - Package or Case Code: CONN-TH_2P-P10.00_L10.0-W15.0 - Manufacturer Part Number: 282858-2 - Product Info Url: https://lcsc.com/product-detail/Others_TE-Connectivity_282858-2_TE-Connectivity-282858-2_C306150.html - JLCPCB Part Class: Extended Part - Role: Switching **Pins:** - 1 [pin 1] - 2 [pin 2] ### J7 — [282858-2](https://www.flux.ai/lcsc/282858-2~a1vo.md) - Role: Switching - JLCPCB Part Class: Extended Part - Manufacturer Part Number: 282858-2 - Package or Case Code: CONN-TH_2P-P10.00_L10.0-W15.0 - Product Info Url: https://lcsc.com/product-detail/Others_TE-Connectivity_282858-2_TE-Connectivity-282858-2_C306150.html - Role Details: 2-pin external pyro channel 2 connector; external power/load limits must be specified - Datasheet URL: https://assets.lcsc.com/datasheet/szlcsc/Download-ISO9001-Certification.pdf - Part Type: Screw terminal - LCSC Part Number: C306150 - Manufacturer Name: TE Connectivity(泰科电子) **Pins:** - 1 [pin 1] - 2 [pin 2] ### J8 — [22052051](https://www.flux.ai/lcsc/22052051~la4y.md) - Part Type: Pin Headers - Datasheet URL: https://assets.lcsc.com/datasheet/szlcsc/Download-ISO9001-Certification.pdf - LCSC Part Number: C586988 - Role: Signal Generation - Package or Case Code: HDR-TH_5P-P2.54H-M-W9.5 - Manufacturer Part Number: 22052051 - Role Details: I2C expansion header with +3.3V, GND, I2C1_SCL, I2C1_SDA, and INT/GPIO - Manufacturer Name: MOLEX - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Pre-ordered-Products_MOLEX_22052051_MOLEX-22052051_C586988.html **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] ### J9 — [SMA-J-P-H-RA-TH1](https://www.flux.ai/adrian95/sma-j-p-h-ra-th1~xy1.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Samtec - Role Details: Through-hole SMA connector for optional GPS antenna input - Mount: Through Hole - Manufacturer Part Number: SMA-J-P-X-RA-TH1 - Role: RF Tuning / Matching - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/6129/sma-j-p-x-ra-th1-mkt.pdf - Part Type: Connectors **Pins:** - ~ [pin 3] - ~ [pin 4] - ~ [pin 5] - ~ [pin 2] - ~ [pin 1] ### LED1 — [SML-D13FWT86C](https://www.flux.ai/jecstronic/sml-d13fwt86c~i2q.md) - Role: Signal Generation - Role Details: Green PWR status LED - Datasheet URL: https://fscdn.rohm.com/en/products/databook/datasheet/opto/led/chip_mono/sml-d13fwt86(c)-e.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Rohm Semiconductor - Part Type: LED - Manufacturer Part Number: SML-D13FWT86C **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [SMLMN2BCTT86C](https://www.flux.ai/adrian95/smlmn2bctt86c~4zw.md) - Role Details: Blue STATUS LED controlled by MCU - Manufacturer Part Number: SMLMN2BCTT86C - Datasheet URL: https://www.rohm.com/datasheet?p=SMLMN2BCT(C)&dist=Digi-key&media=referral&source=digi-key.com&campaign=Digi-key - Role: Signal Generation - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED - Manufacturer Name: Rohm Semiconductor **Pins:** - A [pin 2] - K [pin 1] ### LED3 — [XZMDR68W-3](https://www.flux.ai/jecstronic/xzmdr68w-3~dhl.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED - Datasheet URL: https://www.sunledusa.com/products/spec/XZMDR68W-3.pdf - Manufacturer Part Number: XZMDR68W-3 - Manufacturer Name: SunLED - Role: Signal Generation - Role Details: Red FAULT LED controlled by MCU **Pins:** - A [pin 2] - K [pin 1] ### Q1 — [AO3407A](https://www.flux.ai/markwuflux/ao3407a~xp.md) - Role Details: P-channel MOSFET high-side switch for pyro channel 1; load current must be verified before flight use - Manufacturer Name: UMW(Youtai Semiconductor Co., Ltd.) - Datasheet URL: https://datasheet.lcsc.com/lcsc/2209201030_UMW-Youtai-Semiconductor-Co---Ltd--AO3407A_C347478.pdf - Role: Switching - Manufacturer Part Number: AO3407A **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q2 — [AO3407A](https://www.flux.ai/markwuflux/ao3407a~xp.md) - Role Details: P-channel MOSFET high-side switch for pyro channel 2; load current must be verified before flight use - Manufacturer Part Number: AO3407A - Datasheet URL: https://datasheet.lcsc.com/lcsc/2209201030_UMW-Youtai-Semiconductor-Co---Ltd--AO3407A_C347478.pdf - Manufacturer Name: UMW(Youtai Semiconductor Co., Ltd.) - Role: Switching **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q3 — [MMBT3904LT1G](https://www.flux.ai/openpartlist/mmbt3904lt1g~s5.md) - Manufacturer Part Number: MMBT3904LT1G - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: onsemi - Datasheet URL: https://www.onsemi.com/pdf/datasheet/mmbt3904lt1-d.pdf - Role: Switching - Role Details: NPN low-side gate driver allowing 3.3V MCU GPIO to pull AO3407A high-side P-MOSFET gate low - Part Type: Transistor **Pins:** - B [pin 1] - C [pin 3] - E [pin 2] ### Q4 — [MMBT3904LT1G](https://www.flux.ai/openpartlist/mmbt3904lt1g~s5.md) - Part Type: Transistor - Role: Switching - Role Details: NPN low-side gate driver allowing 3.3V MCU GPIO to pull AO3407A high-side P-MOSFET gate low - Manufacturer Name: onsemi - Datasheet URL: https://www.onsemi.com/pdf/datasheet/mmbt3904lt1-d.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: MMBT3904LT1G **Pins:** - B [pin 1] - C [pin 3] - E [pin 2] ### U1 — [MP1584EN-LF-P](https://www.flux.ai/monolithicpower/mp1584en-lf-p~ewo.md) - Role Details: Main 5V rail generator from protected 2S LiPo input; sizing must be verified by power budget - Manufacturer Name: Monolithic Power Systems - Manufacturer Part Number: MP1584EN-LF-P - Datasheet URL: https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MP1584EN-LF-Z - Product Image Url: https://www.monolithicpower.com/pub/media/catalog/product/M/P/MP1584_109_1_3.jpg - Product Info Url: https://www.monolithicpower.com/en/catalog/product/view/id/109?utm_source=ultralibrarian&utm_medium=component_search&utm_campaign=listing - Package or Case Code: SOIC8E_MPS_MNP - Role: Main Buck Regulator **Pins:** - BST [pin 8] - COMP [pin 3] - EN [pin 2] - EPAD [pin EPAD] - FB [pin 4] - FREQ [pin 6] - GND [pin 5] - SW [pin 1] - VIN [pin 7] ### U10 — [TPS3430WDRC](https://www.flux.ai/kicad-part-library/tps3430wdrc~dq2.md) - Package or Case Code: VSON-10-1EP_3x3mm_P0.5mm_EP1.65x2.4mm - Manufacturer Part Number: TPS3430WDRC - Role: Signal Generation - Datasheet URL: https://www.ti.com/lit/gpn/TPS3430 - Role Details: External watchdog/reset supervisor for STM32 reset supervision and watchdog input - Manufacturer Name: Texas Instruments Inc. **Pins:** - ~{WDO} [pin 8] - CRST [pin 4] - CWD [pin 2] - GND [pin 5] - GND [pin 11] - NC [pin 9] - SET0 [pin 3] - SET1 [pin 6] - VDD1 [pin 1] - VDD2 [pin 10] - WDI [pin 7] ### U13 — [NEO-M8N-0-10](https://www.flux.ai/jecstronic/neo-m8n-0-10~l4f.md) - Datasheet URL: https://www.mouser.ca/datasheet/2/1025/NEO_M8_FW3_DataSheet_UBX_15031086-3180589.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role: GPS Module - Manufacturer Part Number: NEO-M8N-0-10 - Manufacturer Name: U-blox - Part Type: Module - Role Details: Optional u-blox NEO-M8N GNSS module connected to STM32 USART3 and PPS GPIO **Pins:** - D_SEL [pin 2] - EXTINT_/_EXTINT0 [pin 4] - GND_1 [pin 10] - GND_2 [pin 12] - GND_3 [pin 13] - GND_4 [pin 24] - LNA_EN/RESERVED [pin 14] - RESERVED_/_EXTINT1 [pin 15] - RESERVED_1 [pin 16] - RESERVED_2 [pin 17] - RESET_N [pin 8] - RF_IN [pin 11] - RXD_/_SPI_MOSI [pin 21] - SCL_/_SPI_CLK [pin 19] - SDA_/_SPI_CS_N [pin 18] - TIMEPULSE_/_TIMEPULSE1 [pin 3] - TP2/SAFEBOOT_N [pin 1] - TXD_/_SPI_MISO [pin 20] - USB_DM [pin 5] - USB_DP [pin 6] - V_BCKP [pin 22] - VCC [pin 23] - VCC_RF [pin 9] - VDD_USB [pin 7] ### U2 — [MP1584EN-LF-P](https://www.flux.ai/monolithicpower/mp1584en-lf-p~ewo.md) - Product Info Url: https://www.monolithicpower.com/en/catalog/product/view/id/109?utm_source=ultralibrarian&utm_medium=component_search&utm_campaign=listing - Package or Case Code: SOIC8E_MPS_MNP - Manufacturer Part Number: MP1584EN-LF-P - Product Image Url: https://www.monolithicpower.com/pub/media/catalog/product/M/P/MP1584_109_1_3.jpg - Datasheet URL: https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MP1584EN-LF-Z - Manufacturer Name: Monolithic Power Systems - Role: Backup Buck Regulator - Role Details: Backup 5V rail generator from protected 2S LiPo input; diode-ORed with main 5V rail **Pins:** - BST [pin 8] - COMP [pin 3] - EN [pin 2] - EPAD [pin EPAD] - FB [pin 4] - FREQ [pin 6] - GND [pin 5] - SW [pin 1] - VIN [pin 7] ### U3 — [AMS1117-3.3](https://www.flux.ai/vasy_skral/ams1117-33~34.md) - Symbol Style: Parametric - Manufacturer Name: AMS - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Datasheet URL: http://www.advanced-monolithic.com/pdf/ds1117.pdf - Role Details: Generates 3.3V logic rail for MCU, sensors, telemetry modules, SD card and monitors - Role: 3.3V LDO - Manufacturer Part Number: AMS1117-3.3 **Pins:** - GND [pin 1] - TAB(VOUT) [pin 4] - VIN [pin 3] - VOUT [pin 2] ### U4 — [INA226AIDGST](https://www.flux.ai/vasy_skral/ina226aidgst~671.md) - Manufacturer Part Number: INA226AIDGST - Datasheet URL: https://www.ti.com/lit/ds/symlink/ina226.pdf - Part Type: Integrated Circuit - Role: Power Monitor - Manufacturer Name: Texas Instruments - Role Details: I2C current/power monitor for protected 2S LiPo input **Pins:** - ~Alert~ [pin 3] - A0 [pin 2] - A1 [pin 1] - GND [pin 7] - SCL [pin 5] - SDA [pin 4] - Vbus [pin 8] - Vin- [pin 9] - Vin+ [pin 10] - VS [pin 6] ### U5 — [STM32F405RGT6](https://www.flux.ai/jharwinbarrozo/stm32f405rgt6~ssm.md) - Role: Central MCU - Manufacturer Name: STMicroelectronics - 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 - Part Type: Integrated Circuit - Role Details: STM32F405RGT6 controls sensors, telemetry, servo PWM, SD logging, GPS, pyro outputs, SWD and USB interface - Manufacturer Part Number: STM32F405RGT6 **Pins:** - BOOT0 [pin 60] - NRST [pin 7] - PA0_WKUP [pin 14] - PA1 [pin 15] - PA10 [pin 43] - PA11 [pin 44] - PA12 [pin 45] - PA13 [pin 46] - PA14 [pin 49] - PA15 [pin 50] - PA2 [pin 16] - PA3 [pin 17] - PA4 [pin 20] - PA5 [pin 21] - PA6 [pin 22] - PA7 [pin 23] - PA8 [pin 41] - PA9 [pin 42] - PB0 [pin 26] - PB1 [pin 27] - PB10 [pin 29] - PB11 [pin 30] - PB12 [pin 33] - PB13 [pin 34] - PB14 [pin 35] - PB15 [pin 36] - PB2 [pin 28] - PB3 [pin 55] - PB4 [pin 56] - PB5 [pin 57] - PB6 [pin 58] - PB7 [pin 59] - PB8 [pin 61] - PB9 [pin 62] - PC0 [pin 8] - PC1 [pin 9] - PC10 [pin 51] - PC11 [pin 52] - PC12 [pin 53] - PC13 [pin 2] - PC14 [pin 3] - PC15 [pin 4] - PC2 [pin 10] - PC3 [pin 11] - PC4 [pin 24] - PC5 [pin 25] - PC6 [pin 37] - PC7 [pin 38] - PC8 [pin 39] - PC9 [pin 40] - PD2 [pin 54] - PH0 [pin 5] - PH1 [pin 6] - VBAT [pin 1] - VCAP_1 [pin 31] - VCAP_2 [pin 47] - VDD1 [pin 19] - VDD2 [pin 32] - VDD3 [pin 48] - VDD4 [pin 64] - VDDA [pin 13] - VSS1 [pin 18] - VSS2 [pin 63] - VSSA [pin 12] ### U6 — [IIM-42652](https://www.flux.ai/kicad-part-library/iim-42652~vnl.md) - Datasheet URL: https://invensense.tdk.com/wp-content/uploads/2021/01/ds-000440_iim-42652-datasheet.pdf - Role Details: Primary redundant IMU; TDK/InvenSense IIM-42652 substitute, I2C/SPI capable, 3.3V VDD/VDDIO - Role: Primary IMU - Package or Case Code: Bosch_LGA-14_3x2.5mm_P0.5mm - Manufacturer Part Number: IIM-42652 **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 7] - GND [pin 6] - INT1/INT [pin 4] - INT2/FSYNC/CLKIN [pin 9] - RESV [pin 3] - RESV [pin 2] - RESV [pin 10] - RESV [pin 11] - VDD [pin 8] - VDDIO [pin 5] ### U7 — [IIM-42652](https://www.flux.ai/kicad-part-library/iim-42652~vnl.md) - Datasheet URL: https://invensense.tdk.com/wp-content/uploads/2021/01/ds-000440_iim-42652-datasheet.pdf - Package or Case Code: Bosch_LGA-14_3x2.5mm_P0.5mm - Role Details: Backup redundant IMU; TDK/InvenSense IIM-42652 substitute, I2C/SPI capable, 3.3V VDD/VDDIO - Role: Backup IMU - Manufacturer Part Number: IIM-42652 **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 7] - GND [pin 6] - INT1/INT [pin 4] - INT2/FSYNC/CLKIN [pin 9] - RESV [pin 3] - RESV [pin 2] - RESV [pin 10] - RESV [pin 11] - VDD [pin 8] - VDDIO [pin 5] ### U8 — [MS561101BA03-50](https://www.flux.ai/jecstronic/ms561101ba03-50~1vl.md) - Manufacturer Name: TE Connectivity Measurement Specialties - Manufacturer Part Number: MS561101BA03-50 - Role: Primary Barometer - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.te.com/usa-en/product-MS561101BA03-50.datasheet.pdf - Role Details: Primary MS5611 barometer on I2C bus for altitude/pressure sensing - Part Type: Sensor **Pins:** - CSB_1 [pin 4] - CSB_2 [pin 5] - GND [pin 3] - PS [pin 2] - SCLK [pin 8] - SDI/SDA [pin 7] - SDO [pin 6] - VDD [pin 1] ### U9 — [MS561101BA03-50](https://www.flux.ai/jecstronic/ms561101ba03-50~1vl.md) - Role: Backup Barometer - Manufacturer Part Number: MS561101BA03-50 - Role Details: Backup MS5611 barometer on I2C bus for redundant altitude/pressure sensing - Manufacturer Name: TE Connectivity Measurement Specialties - Part Type: Sensor - Datasheet URL: https://www.te.com/usa-en/product-MS561101BA03-50.datasheet.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - CSB_1 [pin 4] - CSB_2 [pin 5] - GND [pin 3] - PS [pin 2] - SCLK [pin 8] - SDI/SDA [pin 7] - SDO [pin 6] - VDD [pin 1] ### X1 — [SC-16S 32.768kHz 20PPM 12.5pF](https://www.flux.ai/lcsc/sc-16s-32p768khz-20ppm-12p5pf~ve07.md) - Role Details: STM32 LSE 32.768kHz crystal; load capacitors C11/C12 - Manufacturer Name: Seiko(精工) - Part Type: Crystals - Product Info Url: https://lcsc.com/product-detail/SMD-Crystal-Resonators_Seiko-SC-16S-32-768kHz-20PPM-12-5pF_C398713.html - Manufacturer Part Number: SC-16S 32.768kHz 20PPM 12.5pF - Package or Case Code: CRYSTAL-SMD_L1.6-W1.0 - LCSC Part Number: C398713 - Role: Timing - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1912111437_Seiko-SC-16S-32-768kHz-20PPM-12-5pF_C398713.pdf **Pins:** - OSC1 [pin 1] - OSC2 [pin 2] ### Y1 — [CSTCE8M00G52-R0](https://www.flux.ai/adrian95/cstce8m00g52-r0~40j.md) - Manufacturer Part Number: CSTCE8M00G52-R0 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Timing - Part Type: Oscillator - Role Details: 8MHz Murata ceramic resonator with built-in load capacitors used as HSE clock substitute because exact 2-pin 8MHz crystal was unavailable - Manufacturer Name: Murata Electronics - Datasheet URL: https://datasheet.lcsc.com/lcsc/1810170910_Murata-Electronics-CSTCE8M00G52-R0_C22549.pdf **Pins:** - GND [pin 2] - INPUT [pin 1] - OUTPUT [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/parkerhs18/tvc-rocket-flight-controller~nm](https://www.flux.ai/parkerhs18/tvc-rocket-flight-controller~nm).* --- *Generated from [https://www.flux.ai/parkerhs18/tvc-rocket-flight-controller~nm](https://www.flux.ai/parkerhs18/tvc-rocket-flight-controller~nm)*