# Biped Body ## Description Imported/reconstructed electronics schematic for the biped body project from the uploaded KiCad schematic. ## Project Details - **Owner:** johnnyroboto - **Created:** 7/16/2026 - **Last Updated:** 7/17/2026 - **Visibility:** Public - **Copies:** 1 ## Key Components ### D1 — [SMBJ5.0A](https://www.flux.ai/adrian95/smbj5p0a~lvt.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role: Protection - Role Details: User-requested SMBJ5.0A TVS; DNP/review for VBAT because 5V standoff is incompatible with nominal 12V rail. - Manufacturer Part Number: SMBJ5.0A - Datasheet URL: https://www.littelfuse.com/~/media/electronics/datasheets/tvs_diodes/littelfuse_tvs_diode_smbj_datasheet.pdf.pdf - Manufacturer Name: Littelfuse Inc. - Part Type: Diode **Pins:** - A [pin 2] - K [pin 1] ### D2 — [SS34](https://www.flux.ai/lcsc/ss34~6q67.md) - Role: Flyback / Freewheeling - Package or Case Code: SMB_L4.3-W3.6-LS5.4-RD - Reverse Voltage: 40V - Diode Type: Schottky - Manufacturer Part Number: SS34 - Role Details: LM2596S-5.0 buck catch diode, SS34 3A/40V Schottky. - Forward Voltage: 0.3V to 0.45V - JLCPCB Part Class: Extended Part - LCSC Part Number: C2758511 - Manufacturer Name: UMW(友台半导体) - Part Type: Schottky Barrier Diodes (SBD) - Datasheet URL: https://www.lcsc.com/datasheet/C2758511.pdf **Pins:** - A [pin 2] - K [pin 1] ### D3 — [150060VS55040](https://www.flux.ai/adrian95/150060vs55040~c2q.md) - Manufacturer Name: Würth Elektronik - Role Details: 5V rail status LED indicator; series resistor limits LED current. - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 150060VS55040 - Datasheet URL: https://www.we-online.com/components/products/datasheet/150060VS55040.pdf - Part Type: LED - Role: Current Limiting **Pins:** - A [pin 2] - K [pin 1] ### D4 — [150060VS55040](https://www.flux.ai/adrian95/150060vs55040~c2q.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Würth Elektronik - Manufacturer Part Number: 150060VS55040 - Datasheet URL: https://www.we-online.com/components/products/datasheet/150060VS55040.pdf - Role Details: ESP32 GPIO status LED indicator; series resistor limits LED current. - Part Type: LED - Role: Current Limiting **Pins:** - A [pin 2] - K [pin 1] ### F1 — [BSMD1812-300-12V](https://www.flux.ai/adrian95/bsmd1812-300-12v~dqd.md) - Manufacturer Name: BHFUSE - Part Type: Protection - Manufacturer Part Number: BSMD1812-300-12V - Role: Protection - LCSC Part Number: C5373999 - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.lcsc.com/datasheet/C5373999.pdf - Role Details: 3A hold resettable fuse in raw battery/servo power path; verify against actual servo stall current. **Pins:** - P1 [pin 1] - P2 [pin 2] ### J1 — [USB4215-03-A](https://www.flux.ai/adrian95/usb4215-03-a~kg3.md) - Datasheet URL: https://gct.co/files/specs/usb4215-spec.pdf - Symbol Style: parametric-v1 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: USB C - Role Details: USB 2.0 Type-C device/sink connector; CC1 and CC2 each need 5.1k pull-down. - Role: USB-C Connector - Manufacturer Name: GCT - Manufacturer Part Number: USB4215-03-A - Package or Case Code: GCT_USB4215-03-A_REVA **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] ### J2 — [DG250-3.5-02P-11-00A(H)](https://www.flux.ai/adrian95/dg250-3p5-02p-11-00ah~77l.md) - Manufacturer Part Number: DG250-3.5-02P-11-00A(H) - Part Type: Connector - Role Details: Battery input, nominal 12V assumed, rated connector chosen for at least 3A class current. - Datasheet URL: https://www.tme.com/Document/74a50bb60bd70b3c953bc54e89073085/DG250-3.5.pdf - Manufacturer Name: Degson - Role: Power Input Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### J3 — [Pin Header 01x03 2.54mm Vertical for Servo Motor](https://www.flux.ai/project-x/pin-header-01x03-2p54mm-vertical-for-servo-motor~jl.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role: Connector - Part Type: Connector - Role Details: Servo bus 1 connector, raw VBAT power distribution and data line from GPIO25 level shifter. **Pins:** - 5v [pin 2] - Data [pin 3] - Gnd [pin 1] ### J4 — [Pin Header 01x03 2.54mm Vertical for Servo Motor](https://www.flux.ai/project-x/pin-header-01x03-2p54mm-vertical-for-servo-motor~jl.md) - Part Type: Connector - Role Details: Servo bus 2 connector, raw VBAT power distribution and data line from GPIO26 level shifter. - License: https://creativecommons.org/licenses/by/4.0/ - Role: Connector **Pins:** - 5v [pin 2] - Data [pin 3] - Gnd [pin 1] ### J5 — [TSW-104-07-G-S](https://www.flux.ai/adrian95/tsw-104-07-g-s~983.md) - Manufacturer Name: Samtec Inc. - Role: Connector - Role Details: RDKx5 4-pin header for 5V, TX, RX, and ground. - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: http://suddendocs.samtec.com/prints/tsw-xxx-xx-xxx-x-xx-xxx-mkt.pdf - Package or Case Code: TSW10407GS - Manufacturer Part Number: TSW-104-07-G-S - 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) - Manufacturer Name: Samtec Inc. - Role Details: Shared 3.3V I2C header on ESP32 GPIO21/GPIO22. - Role: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: TSW10407GS - Datasheet URL: http://suddendocs.samtec.com/prints/tsw-xxx-xx-xxx-x-xx-xxx-mkt.pdf - Manufacturer Part Number: TSW-104-07-G-S - Part Type: Connector **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) - Part Type: Connector - Manufacturer Part Number: TSW-104-07-G-S - Package or Case Code: TSW10407GS - Datasheet URL: http://suddendocs.samtec.com/prints/tsw-xxx-xx-xxx-x-xx-xxx-mkt.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role: Connector - Role Details: MPU6050 breakout/header on shared 3.3V I2C bus. - Manufacturer Name: Samtec Inc. **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J8 — [Pin Header 01x03 2.54mm Vertical for Servo Motor](https://www.flux.ai/project-x/pin-header-01x03-2p54mm-vertical-for-servo-motor~jl.md) - Role: Connector - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Battery monitor header exposing VBAT, GND, and ADC-safe divided sense output. **Pins:** - 5v [pin 2] - Data [pin 3] - Gnd [pin 1] ### SW1 — [TS-1088-AR02016](https://www.flux.ai/lcsc/ts-1088-ar02016~e3n1.md) - Manufacturer Name: XUNPU(讯普) - Manufacturer Part Number: TS-1088-AR02016 - Package or Case Code: SW-SMD_L3.9-W3.0-P4.45 - Product Info Url: https://lcsc.com/product-detail/Tactile-Switches_XUNPU-TS-1088-AR02016_C720477.html - LCSC Part Number: C720477 - Part Type: Tactile Switches - Role Details: Momentary reset/EN pushbutton to ground ESP32 EN. - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302330_XUNPU-TS-1088-AR02016_C720477.pdf - Role: Switching - JLCPCB Part Class: Extended Part **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW2 — [TS-1088-AR02016](https://www.flux.ai/lcsc/ts-1088-ar02016~e3n1.md) - Part Type: Tactile Switches - Role: Bootstrapping - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302330_XUNPU-TS-1088-AR02016_C720477.pdf - Package or Case Code: SW-SMD_L3.9-W3.0-P4.45 - Product Info Url: https://lcsc.com/product-detail/Tactile-Switches_XUNPU-TS-1088-AR02016_C720477.html - LCSC Part Number: C720477 - Manufacturer Name: XUNPU(讯普) - Manufacturer Part Number: TS-1088-AR02016 - Role Details: Momentary BOOT button pulls IO0 low for programming mode. **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW3 — [DS04-254-2-01BK-SMT](https://www.flux.ai/jecstronic/ds04-254-2-01bk-smt~t2.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.cuidevices.com/product/resource/ds04-254-smt.pdf - Part Type: Switch - Role Details: Logic shutdown switch controlling LM2596 ON/OFF; does not interrupt high-current servo VBAT directly. - Manufacturer Name: CUI Devices - Manufacturer Part Number: DS04-254-2-01BK-SMT - Role: Switching **Pins:** - ~ [pin 1B] - ~ [pin 1A] ### U1 — [ESP32-S3-WROOM-1-N16R8](https://www.flux.ai/adrian95/esp32-s3-wroom-1-n16r8~fs1.md) - Manufacturer Name: Espressif Systems - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.mouser.com/datasheet/2/891/esp32_s3_wroom_1_wroom_1u_datasheet_en-2930317.pdf - Part Type: Module - Manufacturer Part Number: ESP32-S3-WROOM-1-N16R8 - Role Details: ESP32-S3-WROOM-1 controller; antenna must be placed at PCB edge with keepout. - Symbol Style: parametric-v1 - Role: Microcontroller Module **Pins:** - 3V3 [pin 2] - EN [pin 3] - GND_1 [pin 1] - GND_10 [pin 48] - GND_11 [pin 49] - GND_2 [pin 40] - GND_3 [pin 41] - GND_4 [pin 42] - GND_5 [pin 43] - GND_6 [pin 44] - GND_7 [pin 45] - GND_8 [pin 46] - GND_9 [pin 47] - 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 — [CP2102C-A01-GQFN28](https://www.flux.ai/silicon-yard/cp2102c-a01-gqfn28.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/51d5a18115e0bd3bef2091ca2aeb399aa3916548f31b4e4a30e8f0173aa48e61.pdf - Symbol Style: parametric-v1 - Package or Case Code: TO - Role: USB-UART Bridge - Part Type: Integrated Circuits - Manufacturer Name: Silicon Labs - Manufacturer Part Number: CP2102C-A01-GQFN28 - Role Details: CP2102C bridge between USB-C D+/D- and ESP32 UART on GPIO43/GPIO44. **Pins:** - CTS [pin 23] - D- [pin 5] - D+ [pin 4] - DCD [pin 1] - DSR [pin 27] - DTR [pin 28] - GND_1 [pin 3] - GND_2 [pin 29] - NC_1 [pin 10] - NC_10 [pin 21] - NC_11 [pin 22] - NC_2 [pin 13] - NC_3 [pin 14] - NC_4 [pin 15] - NC_5 [pin 16] - NC_6 [pin 17] - NC_7 [pin 18] - NC_8 [pin 19] - NC_9 [pin 20] - RI [pin 2] - RSTB [pin 9] - RTS [pin 24] - RXD [pin 25] - SUSPEND [pin 12] - SUSPENDB [pin 11] - TXD [pin 26] - VBUS [pin 8] - VDD [pin 6] - VREGIN [pin 7] ### U3 — [LM2596S-5.0/NOPB](https://www.flux.ai/adrian95/lm2596s-5p0nopb~ji8.md) - Part Type: Integrated Circuit - Role: Buck Regulator - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Texas Instruments - Manufacturer Part Number: LM2596S-5.0/NOPB - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm2596.pdf - Role Details: LM2596S-5.0 fixed 5V buck regulator for ESP32 VIN and RDK 5V header; support values provisional pending final load current. **Pins:** - ~ON~/OFF [pin 5] - FEEDBACK [pin 4] - GND_TAB [pin 6] - GROUND [pin 3] - OUTPUT [pin 2] - VIN [pin 1] ### U4 — [AP2112K-3.3TRG1](https://www.flux.ai/adrian95/ap2112k-33trg1~zlq.md) - Symbol Style: parametric-v1 - Manufacturer Name: Diodes Incorporated - Part Type: Integrated Circuit - Datasheet URL: https://www.diodes.com/assets/Datasheets/AP2112.pdf - Manufacturer Part Number: AP2112K-3.3TRG1 - Role: Power Conversion - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: AP2112K 3.3V 600mA LDO from 5V; verify thermal margin for ESP32 WiFi current. **Pins:** - EN [pin 3] - GND [pin 2] - NC [pin 4] - VIN [pin 1] - VOUT [pin 5] ### U5 — [SN74LVC1T45DBVT](https://www.flux.ai/lcsc/sn74lvc1t45dbvt~aonb.md) - Manufacturer Part Number: SN74LVC1T45DBVT - Package or Case Code: SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR - LCSC Part Number: C116653 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010301_Texas-Instruments-SN74LVC1T45DBVT_C116653.pdf - Role Details: 3.3V to 5V direction-controlled translator for servo bus 1 data; replaces BSS138 for push-pull half-duplex UART robustness. - JLCPCB Part Class: Extended Part - Part Type: 74 Series - Manufacturer Name: TI(德州仪器) - Product Info Url: https://lcsc.com/product-detail/Others_Texas-Instruments_SN74LVC1T45DBVT_Texas-Instruments-TI-SN74LVC1T45DBVT_C116653.html - Role: Logic-level Shifting **Pins:** - A [pin 3] - B [pin 4] - DIR [pin 5] - GND [pin 2] - VCCA [pin 1] - VCCB [pin 6] ### U6 — [SN74LVC1T45DBVT](https://www.flux.ai/lcsc/sn74lvc1t45dbvt~aonb.md) - LCSC Part Number: C116653 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010301_Texas-Instruments-SN74LVC1T45DBVT_C116653.pdf - Package or Case Code: SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR - Manufacturer Part Number: SN74LVC1T45DBVT - Manufacturer Name: TI(德州仪器) - Role Details: 3.3V to 5V direction-controlled translator for servo bus 2 data; replaces BSS138 for push-pull half-duplex UART robustness. - Part Type: 74 Series - Product Info Url: https://lcsc.com/product-detail/Others_Texas-Instruments_SN74LVC1T45DBVT_Texas-Instruments-TI-SN74LVC1T45DBVT_C116653.html - Role: Logic-level Shifting - JLCPCB Part Class: Extended Part **Pins:** - A [pin 3] - B [pin 4] - DIR [pin 5] - GND [pin 2] - VCCA [pin 1] - VCCB [pin 6] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/johnnyroboto/biped-body~4o](https://www.flux.ai/johnnyroboto/biped-body~4o).* --- *Generated from [https://www.flux.ai/johnnyroboto/biped-body~4o](https://www.flux.ai/johnnyroboto/biped-body~4o)*