# Rocket Payload OBC ## Description 3.3 V ESP32-S3 rocket payload OBC with I2C sensors, GPS UART, CAN payload interface, and buzzer control. ## Project Details - **Owner:** saip2 - **Created:** 8/5/2026 - **Last Updated:** 8/5/2026 - **Visibility:** Public ## Key Components ### BZ1 — [AI-1223-TWT-3V-2-R](https://www.flux.ai/adrian95/ai-1223-twt-3v-2-r~e34.md) - Datasheet URL: https://puiaudio.com/file/specs-AI-1223-TWT-3V-2-R.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: PUI Audio, Inc. - Part Type: Buzzer - Functional Group: Buzzer - Manufacturer Part Number: AI-1223-TWT-3V-2-R **Pins:** - - [pin N] - + [pin P] ### F1 — [1812L110/33MR](https://www.flux.ai/adrian95/1812l11033mr~cmr.md) - Datasheet URL: https://www.littelfuse.com/~/media/electronics/datasheets/resettable_ptcs/littelfuse_ptc_1812l_datasheet.pdf.pdf - Manufacturer Part Number: Littelfuse Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Fuse - Manufacturer Name: 1812L110/33MR - Functional Group: Power Input **Pins:** - P1 [pin 1] - P2 [pin 2] ### FPC1 — [10051922-1210EHLF](https://www.flux.ai/lcsc/10051922-1210ehlf~lcjr.md) - Role Details: Payload FFC A; populated; pinout shared with FPC2-FPC4 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Amphenol-ICC-10051922-1210EHLF_C464571.pdf - Role: Payload interface - Product Info Url: https://lcsc.com/product-detail/FFC-FPC-Connectors_Amphenol-ICC-10051922-1210EHLF_C464571.html - Functional Group: Payload FFC - Package or Case Code: CONN-SMD_12P-P0.50_L3.4-W8.5 - Manufacturer Name: Amphenol - LCSC Part Number: C464571 - JLCPCB Part Class: Extended Part - Manufacturer Part Number: 10051922-1210EHLF - Part Type: FFC/FPC Connectors **Pins:** - 0 [pin 0] - 0 [pin 0] - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### FPC2 — [10051922-1210EHLF](https://www.flux.ai/lcsc/10051922-1210ehlf~lcjr.md) - Role Details: Payload FFC B; populated; pinout shared with FPC1,FPC3,FPC4 - Role: Payload interface - Product Info Url: https://lcsc.com/product-detail/FFC-FPC-Connectors_Amphenol-ICC-10051922-1210EHLF_C464571.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Amphenol-ICC-10051922-1210EHLF_C464571.pdf - Manufacturer Part Number: 10051922-1210EHLF - Part Type: FFC/FPC Connectors - JLCPCB Part Class: Extended Part - LCSC Part Number: C464571 - Functional Group: Payload FFC - Manufacturer Name: Amphenol - Package or Case Code: CONN-SMD_12P-P0.50_L3.4-W8.5 **Pins:** - 0 [pin 0] - 0 [pin 0] - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### FPC3 — [10051922-1210EHLF](https://www.flux.ai/lcsc/10051922-1210ehlf~lcjr.md) - Manufacturer Name: Amphenol - LCSC Part Number: C464571 - JLCPCB Part Class: Extended Part - Manufacturer Part Number: 10051922-1210EHLF - Part Type: FFC/FPC Connectors - Role Details: Payload FFC C; populated - Role: Payload interface - Package or Case Code: CONN-SMD_12P-P0.50_L3.4-W8.5 - Product Info Url: https://lcsc.com/product-detail/FFC-FPC-Connectors_Amphenol-ICC-10051922-1210EHLF_C464571.html - Functional Group: Payload FFC - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Amphenol-ICC-10051922-1210EHLF_C464571.pdf **Pins:** - 0 [pin 0] - 0 [pin 0] - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### FPC4 — [10051922-1210EHLF](https://www.flux.ai/lcsc/10051922-1210ehlf~lcjr.md) - Product Info Url: https://lcsc.com/product-detail/FFC-FPC-Connectors_Amphenol-ICC-10051922-1210EHLF_C464571.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Amphenol-ICC-10051922-1210EHLF_C464571.pdf - Role Details: Payload FFC D; populated - Manufacturer Part Number: 10051922-1210EHLF - Part Type: FFC/FPC Connectors - JLCPCB Part Class: Extended Part - LCSC Part Number: C464571 - Manufacturer Name: Amphenol - Role: Payload interface - Package or Case Code: CONN-SMD_12P-P0.50_L3.4-W8.5 - Functional Group: Payload FFC **Pins:** - 0 [pin 0] - 0 [pin 0] - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J_PWR — [0022232031](https://www.flux.ai/adrian95/0022232031~ox7.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.molex.com/pdm_docs/sd/022232031_sd.pdf - Manufacturer Part Number: 0022232031 - Functional Group: Power Input - Manufacturer Name: Molex **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J1 — [Pin Socket 01x18 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x18-254mm-vertical~nta.md) - Functional Group: OBC Module - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_13 [pin 13] - Pin_14 [pin 14] - Pin_15 [pin 15] - Pin_16 [pin 16] - Pin_17 [pin 17] - Pin_18 [pin 18] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### J13 — [TSW-104-07-G-S](https://www.flux.ai/adrian95/tsw-104-07-g-s~983.md) - Functional Group: Sensors I2C - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: TSW10407GS - Part Type: Connector - Datasheet URL: http://suddendocs.samtec.com/prints/tsw-xxx-xx-xxx-x-xx-xxx-mkt.pdf - Manufacturer Name: Samtec Inc. - Manufacturer Part Number: TSW-104-07-G-S **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J2 — [TSW-104-07-G-S](https://www.flux.ai/adrian95/tsw-104-07-g-s~983.md) - Package or Case Code: TSW10407GS - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Functional Group: External Modules - Manufacturer Part Number: TSW-104-07-G-S - Manufacturer Name: Samtec Inc. - Datasheet URL: http://suddendocs.samtec.com/prints/tsw-xxx-xx-xxx-x-xx-xxx-mkt.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J3 — [TSW-104-07-G-S](https://www.flux.ai/adrian95/tsw-104-07-g-s~983.md) - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: TSW10407GS - Part Type: Connector - Functional Group: External Modules - Datasheet URL: http://suddendocs.samtec.com/prints/tsw-xxx-xx-xxx-x-xx-xxx-mkt.pdf - Manufacturer Name: Samtec Inc. - Manufacturer Part Number: TSW-104-07-G-S **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J4 — [TSW-104-07-G-S](https://www.flux.ai/adrian95/tsw-104-07-g-s~983.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Package or Case Code: TSW10407GS - Manufacturer Name: Samtec Inc. - Datasheet URL: http://suddendocs.samtec.com/prints/tsw-xxx-xx-xxx-x-xx-xxx-mkt.pdf - Manufacturer Part Number: TSW-104-07-G-S - Functional Group: External Modules **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J5 — [TSW-104-07-G-S](https://www.flux.ai/adrian95/tsw-104-07-g-s~983.md) - Manufacturer Name: Samtec Inc. - Datasheet URL: http://suddendocs.samtec.com/prints/tsw-xxx-xx-xxx-x-xx-xxx-mkt.pdf - Manufacturer Part Number: TSW-104-07-G-S - Functional Group: External Modules - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: TSW10407GS - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J6 — [TSW-104-07-G-S](https://www.flux.ai/adrian95/tsw-104-07-g-s~983.md) - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: TSW10407GS - Part Type: Connector - Functional Group: External Modules - Manufacturer Name: Samtec Inc. - Datasheet URL: http://suddendocs.samtec.com/prints/tsw-xxx-xx-xxx-x-xx-xxx-mkt.pdf - Manufacturer Part Number: TSW-104-07-G-S **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J7 — [TSW-104-07-G-S](https://www.flux.ai/adrian95/tsw-104-07-g-s~983.md) - Package or Case Code: TSW10407GS - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: TSW-104-07-G-S - Functional Group: External Modules - Manufacturer Name: Samtec Inc. - Datasheet URL: http://suddendocs.samtec.com/prints/tsw-xxx-xx-xxx-x-xx-xxx-mkt.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### JH1 — [Pin Socket 01x18 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x18-254mm-vertical~nta.md) - Functional Group: OBC Module - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_13 [pin 13] - Pin_14 [pin 14] - Pin_15 [pin 15] - Pin_16 [pin 16] - Pin_17 [pin 17] - Pin_18 [pin 18] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### Q1 — [2N7002K](https://www.flux.ai/jecstronic/2n7002k~8y.md) - Manufacturer Part Number: 2N7002K - Functional Group: Buzzer - Part Type: Transistor - Manufacturer Name: MDD - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.infineon.com/dgdl/Infineon-2N7002-DS-v02_04-en.pdf **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/saip2/rocket-payload-obc~ci](https://www.flux.ai/saip2/rocket-payload-obc~ci).* --- *Generated from [https://www.flux.ai/saip2/rocket-payload-obc~ci](https://www.flux.ai/saip2/rocket-payload-obc~ci)*