# Head V2 ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** nschuster - **Created:** 7/13/2026 - **Last Updated:** 7/13/2026 - **Visibility:** Public ## Key Components ### D1 — [PMEG2010AET](https://www.flux.ai/kicad-part-library/pmeg2010aet~c8.md) - Manufacturer Part Number: PMEG2010AET - Manufacturer Name: Texas Instruments Inc. - Package or Case Code: SOT-23 - Datasheet URL: https://assets.nexperia.com/documents/data-sheet/PMEG2010AEH_PMEG2010AET.pdf - Role Details: Simple Schottky OR-ing path from USB_VBUS to 5V_SYS; ideal diode/power mux preferred for production - Role: Reverse Polarity Protection **Pins:** - A [pin 1] - K [pin 3] - NC [pin 2] ### D2 — [PMEG2010AET](https://www.flux.ai/kicad-part-library/pmeg2010aet~c8.md) - Package or Case Code: SOT-23 - Datasheet URL: https://assets.nexperia.com/documents/data-sheet/PMEG2010AEH_PMEG2010AET.pdf - Manufacturer Name: Texas Instruments Inc. - Manufacturer Part Number: PMEG2010AET - Role Details: Simple Schottky OR-ing path from JST_5V to 5V_SYS; ideal diode/power mux preferred for production - Role: Reverse Polarity Protection **Pins:** - A [pin 1] - K [pin 3] - NC [pin 2] ### D3 — [USBLC6-2SC6](https://www.flux.ai/lcsc/usblc6-2sc6~2e9x.md) - Part Type: ESD Protection Devices - Manufacturer Part Number: USBLC6-2SC6 - Symbol Style: parametric-v1 - LCSC Part Number: C2687116 - Role: Protection - Peak Pulse Current: 5A - Datasheet URL: https://www.lcsc.com/datasheet/C2687116.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNRTlhdUVdURFlXXzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Breakdown Voltage: 6V - Power: 150W - Manufacturer Name: UMW(友台半导体) - Maximum Clamping Voltage: 17V - Operating Temperature: -55°C ~ 125°C (TJ) - JLCPCB Part Class: Extended Part - Role Details: USB 2.0 D+/D- ESD array placed near USB-C connector in layout - Package or Case Code: SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL **Pins:** - GND [pin 2] - I/O1 [pin 1] - I/O1 [pin 6] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### J1 — [USB4235-03-C](https://www.flux.ai/cherepanyadima/usb4235-03-c~sn.md) - Datasheet URL: https://gct.co/files/specs/usb4235-spec.pdf - Part Type: Connectors - Manufacturer Part Number: USB4235-03-C_REVA - Role: USB-C Connector - Manufacturer Name: GST - Role Details: USB 2.0 device port for 5V input and ESP32-S3 native USB serial/JTAG **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND_A [pin A1] - GND_A__1 [pin A12] - GND_B [pin B1] - GND_B__1 [pin B12] - SBU1 [pin A8] - SBU2 [pin B8] - SHIELD [pin SH1] - SHIELD__1 [pin SH2] - VBUS_A [pin A4] - VBUS_A__1 [pin A9] - VBUS_B [pin B4] - VBUS_B__1 [pin B9] ### J2 — [B5B-PH-K-S(LF)(SN)](https://www.flux.ai/adrian95/b5b-ph-k-slfsn~osx.md) - Functional Group: Power and External Sensor Interface - Part Type: Connector - Role Details: Updated arm/base connector pinout: 1 +5V, 2 GND, 3 I2C_SDA, 4 I2C_SCL, 5 SOIL_ANALOG_RAW - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/ePH.pdf - Manufacturer Part Number: B5B-PH-K-S(LF)(SN) - Role: JST Sensor/Power Connector - Manufacturer Name: JST Sales America Inc. - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] ### J4 — [F34G-1A7Q1-E8C24](https://www.flux.ai/adrian95/f34g-1a7q1-e8c24~b61.md) - Manufacturer Name: Amphenol ICC (FCI) - Part Type: Connector - Role: Connector - Manufacturer Part Number: F34G-1A7Q1-E8C24 - Role Details: 24-position 0.5mm FFC for OV5640 DVP camera per uploaded brief; verify contact orientation against actual cable before fab - Datasheet URL: https://cdn.amphenol-cs.com/media/wysiwyg/files/drawing/f34g.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] - MP1 [pin MP1] - MP2 [pin MP2] ### J5 — [B4B-PH-K-S(LF)(SN)](https://www.flux.ai/lcsc/b4b-ph-k-slfsn~0ffw.md) - Connector Pitch: 2mm - Connector Type: Board to Wire - Package or Case Code: CONN-TH_B4B-PH-K-S - JLCPCB Part Class: Extended Part - Manufacturer Name: JST - Functional Group: Sensor Daughterboard Interface - Connector Rows: 1 - Connector Gender: Female - Product Info Url: https://lcsc.com/product-detail/PH-Connectors_JST_B4B-PH-K-S-LF-SN_B4B-PH-K-S-LF-SN_C131334.html - Role Details: 4-pin JST-PH sensor daughterboard link: pin 1 GND, pin 2 +3V3, pin 3 I2C_SDA, pin 4 I2C_SCL - LCSC Part Number: C131334 - Manufacturer Part Number: B4B-PH-K-S(LF)(SN) - Part Type: Wire To Board / Wire To Wire Connector - Role: Connector - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-B4B-PH-K-S-LF-SN_C131334.pdf - Connector Positions: 4 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### LED1 — [LED 0603 (1608 Metric)](https://www.flux.ai/natarius/led-0603-1608-metric~q1.md) - Part Type: LED - Role Details: Firmware-controlled indicator on a safe GPIO - Role: Status LED **Pins:** - A [pin 2] - K [pin 1] ### SW1 — [PTS636 SM25J SMTR LFS](https://www.flux.ai/jecstronic/pts636-sm25j-smtr-lfs~plx.md) - Role Details: Pull GPIO0 low for ESP32-S3 download mode - Role: Boot Button - Manufacturer Part Number: PTS636 SM25J SMTR LFS - Datasheet URL: https://www.ckswitches.com/media/2779/pts636.pdf - Manufacturer Name: C&K - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - ~ [pin 1B] - ~ [pin 1A] ### SW2 — [PTS636 SM25J SMTR LFS](https://www.flux.ai/jecstronic/pts636-sm25j-smtr-lfs~plx.md) - Role: Reset Button - Manufacturer Part Number: PTS636 SM25J SMTR LFS - Role Details: Pull EN/CHIP_PU low for reset - Datasheet URL: https://www.ckswitches.com/media/2779/pts636.pdf - Manufacturer Name: C&K - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - ~ [pin 1B] - ~ [pin 1A] ### U1 — [ESP32-S3-WROOM-1](https://www.flux.ai/kicad-part-library/esp32-s3-wroom-1~6lv.md) - Manufacturer Name: Texas Instruments Inc. - Manufacturer Part Number: ESP32-S3-WROOM-1 - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf - Role Details: ESP32-S3-WROOM core with WiFi/BLE, camera GPIO, boot/reset, and native USB - Role: MCU / Wireless Module - Part Type: RF Module - Package or Case Code: ESP32-S3-WROOM-1 **Pins:** - 3V3 [pin 2] - EN [pin 3] - GND [pin 1] - GND [pin 40] - GND [pin 41] - IO0 [pin 27] - IO1 [pin 39] - IO10 [pin 18] - IO11 [pin 19] - IO12 [pin 20] - IO13 [pin 21] - IO14 [pin 22] - IO15 [pin 8] - IO16 [pin 9] - IO17 [pin 10] - IO18 [pin 11] - IO19 [pin 13] - IO2 [pin 38] - IO20 [pin 14] - IO21 [pin 23] - IO3 [pin 15] - IO35 [pin 28] - IO36 [pin 29] - IO37 [pin 30] - IO38 [pin 31] - IO39 [pin 32] - IO4 [pin 4] - IO40 [pin 33] - IO41 [pin 34] - IO42 [pin 35] - IO45 [pin 26] - IO46 [pin 16] - IO47 [pin 24] - IO48 [pin 25] - IO5 [pin 5] - IO6 [pin 6] - IO7 [pin 7] - IO8 [pin 12] - IO9 [pin 17] - RXD0 [pin 36] - TXD0 [pin 37] ### U2 — [AP2112K-3.3TRG1](https://www.flux.ai/adrian95/ap2112k-33trg1~zlq.md) - Part Type: Integrated Circuit - Datasheet URL: https://www.diodes.com/assets/Datasheets/AP2112.pdf - Manufacturer Name: Diodes Incorporated - License: https://creativecommons.org/licenses/by/4.0/ - Role: Power Conversion - Manufacturer Part Number: AP2112K-3.3TRG1 - Role Details: 5V_SYS to +3V3 regulator for ESP32-S3 and 3.3V sensors; current headroom is marginal and noted for review - Symbol Style: parametric-v1 **Pins:** - EN [pin 3] - GND [pin 2] - NC [pin 4] - VIN [pin 1] - VOUT [pin 5] ### U6 — [AP2204K-ADJTRG1](https://www.flux.ai/lcsc/ap2204k-adjtrg1~wa2s.md) - Role: Power Conversion - Manufacturer Name: DIODES(美台) - Role Details: 5V_SYS to CAM_2V8; feedback target per brief R9=12.4k, R10=10k; current/thermal margin needs verification - Part Type: Linear Voltage Regulators (LDO) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-AP2204K-ADJTRG1_C264072.pdf - LCSC Part Number: C264072 - Package or Case Code: SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR - Manufacturer Part Number: AP2204K-ADJTRG1 - Product Info Url: https://lcsc.com/product-detail/Others_Diodes-Incorporated_AP2204K-ADJTRG1_Diodes-Incorporated-AP2204K-ADJTRG1_C264072.html - JLCPCB Part Class: Extended Part **Pins:** - ADJ [pin 4] - EN [pin 3] - GND [pin 2] - VIN [pin 1] - VOUT [pin 5] ### U7 — [LDK130M-R](https://www.flux.ai/adrian95/ldk130m-r~1w6.md) - Manufacturer Part Number: LDK130M-R - Part Type: Integrated Circuit - Manufacturer Name: STMicroelectronics - Role: Power Conversion - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://datasheet.octopart.com/LDK130M-R-STMicroelectronics-datasheet-27908106.pdf - Role Details: 5V_SYS to CAM_1V3 per brief; exact OV5640 module core rail voltage must be verified **Pins:** - BP [pin 4] - EN [pin 3] - GND [pin 2] - IN [pin 1] - OUT [pin 5] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/nschuster/head-v2~5e](https://www.flux.ai/nschuster/head-v2~5e).* --- *Generated from [https://www.flux.ai/nschuster/head-v2~5e](https://www.flux.ai/nschuster/head-v2~5e)*