# FeederPilot_May262026 ## Description DeerFeeder controller with cellular connectity and sensors ## Project Details - **Owner:** greg - **Created:** 5/28/2026 - **Last Updated:** 5/28/2026 - **Visibility:** Public - **Operating Voltage:** 12 V input, 5 V modem rail - **Power Requirements:** 12 V battery input via barrel jack; regulated 5 V modem rail from buck converter - **Implementation Details:** Solar input J4 replaced with JST VH 2-pin locking through-hole connector B2P-VH(LF)(SN); pin 1 = SOLAR_PANEL_IN, pin 2 = GND; intentionally distinct from battery barrel jack J1. - **Forks:** 1 - **Copies:** 1 ## Key Components ### CN1 — [MDT420E03001](https://www.flux.ai/lcsc/mdt420e03001~18sp.md) - JLCPCB Part Class: Extended Part - Package or Case Code: J-75-0050-MOS-M2-E.kicad_mod - Manufacturer Name: Amphenol Communications Solutions - Role Details: Blues Notecard M.2 Key E connector. BOM MPN is MDT420E01001; footprint must use the uploaded MDT420E01001-compatible asset J-75-0050-MOS-M2-E.kicad_mod rather than the library MDT420E03001 footprint. Verify generated layout asset before production. - Reference Design URL: https://dev.blues.io/datasheets/application-notes/notecard-carrier-design-guide - LCSC Part Number: C599397 - Manufacturer Part Number: MDT420E01001 - Role: Connectivity **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] - 3 [pin 3] - 32 [pin 32] - 33 [pin 33] - 34 [pin 34] - 35 [pin 35] - 36 [pin 36] - 37 [pin 37] - 38 [pin 38] - 39 [pin 39] - 4 [pin 4] - 40 [pin 40] - 41 [pin 41] - 42 [pin 42] - 43 [pin 43] - 44 [pin 44] - 45 [pin 45] - 46 [pin 46] - 47 [pin 47] - 48 [pin 48] - 49 [pin 49] - 5 [pin 5] - 50 [pin 50] - 51 [pin 51] - 52 [pin 52] - 53 [pin 53] - 54 [pin 54] - 55 [pin 55] - 56 [pin 56] - 57 [pin 57] - 58 [pin 58] - 59 [pin 59] - 6 [pin 6] - 60 [pin 60] - 61 [pin 61] - 62 [pin 62] - 63 [pin 63] - 64 [pin 64] - 65 [pin 65] - 66 [pin 66] - 67 [pin 67] - 68 [pin 68] - 69 [pin 69] - 7 [pin 7] - 70 [pin 70] - 71 [pin 71] - 72 [pin 72] - 73 [pin 73] - 74 [pin 74] - 75 [pin 75] - 76 [pin 76] - 77 [pin 77] - 8 [pin 8] - 9 [pin 9] ### CN2 — [1744037-2](https://www.flux.ai/lcsc/1744037-2~zuw.md) - Package: CONN-TH_2P-P5.08 - LCSC Part Number: C590674 - Role Details: Board-edge 2-pin connector for external ultrasonic transducer; intended migration target is sealed automotive connector family such as Deutsch DT/DTM or AMPSEAL - Manufacturer Part Number: 1744037-2 - Role: Transducer Connector - JLCPCB Part Class: Extended Part - Manufacturer Name: TE Connectivity(美国泰科) - Package or Case Code: CONN-TH_2P-P5.08_1744037-2 - Part Type: Wire To Board / Wire To Wire Connector **Pins:** - 1 [pin 1] - 2 [pin 2] ### D1 — [SMAJ18CA/TR13](https://www.flux.ai/adrian95/smaj18catr13~zjf.md) - Role Details: Clamp surges on external 12 V battery input - License: https://creativecommons.org/licenses/by/4.0/ - Package: DO-214AC (SMA) - Manufacturer Part Number: SMAJ18CA/TR13 - Part Type: Diode - Role: Transient Protection - Manufacturer Name: Yageo - Datasheet URL: https://www.yageo.com/upload/media/product/products/datasheet/cpc/tvs/SMAJ_1.pdf **Pins:** - A [pin 2] - K [pin 1] ### D10 — [0402ESDA-05N](https://www.flux.ai/adrian95/0402esda-05n~pwx.md) - Manufacturer Name: BORN - Manufacturer Part Number: 0402ESDA-05N - Role: ESD Protection - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2304140030_BORN-0402ESDA-05N_C316049.pdf - Package: 0402 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Diode - Role Details: Bidirectional ESD clamp from the external pushbutton sense line to ground at the connector entry **Pins:** - A1 [pin 1] - A2 [pin 2] ### D12 — [SMAJ18CA/TR13](https://www.flux.ai/adrian95/smaj18catr13~zjf.md) - Package: DO-214AC (SMA) - Manufacturer Name: Yageo - Role Details: Clamp surges on the external pushbutton LED supply pin tied to VIN_12V - Datasheet URL: https://www.yageo.com/upload/media/product/products/datasheet/cpc/tvs/SMAJ_1.pdf - Manufacturer Part Number: SMAJ18CA/TR13 - Role: Transient Protection - Part Type: Diode - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### D2 — [SS34-A](https://www.flux.ai/lcsc/ss34-a~sylq.md) - Package or Case Code: SMA_L4.3-W2.6-LS5.2-RD - Product Info Url: https://lcsc.com/product-detail/Schottky-Barrier-Diodes-SBD_SS34_C143201.html - Manufacturer Part Number: SS34-A - Role: Reverse Polarity Protection - LCSC Part Number: C143201 - Part Type: Schottky Barrier Diodes (SBD) - Role Details: Series Schottky on 12 V battery input - Package: SMA_L4.3-W2.6-LS5.2-RD - Manufacturer Name: FMS(美丽微) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_FMS-Formosa-Microsemi-SS34-A_C143201.pdf - JLCPCB Part Class: Extended Part **Pins:** - A [pin 2] - C [pin 1] ### D3 — [USBLC6-2SC6](https://www.flux.ai/vasy_skral/usblc6-2sc6~g1b.md) - Symbol Style: parametric-v1 - Role: ESD Protection - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/06/1d/48/9c/6c/20/4a/b2/CD00050750.pdf/files/CD00050750.pdf/jcr:content/translations/en.CD00050750.pdf - Package: SOT-23-6 - Role Details: Protects STM32 USB FS data lines from connector ESD events - Manufacturer Name: STMicroelectronics - Manufacturer Part Number: USBLC6-2SC6 - Part Type: Protection - License: https://creativecommons.org/licenses/by/4.0/ - LCSC Part Number: C7519 **Pins:** - GND [pin 2] - I/O1 [pin 6] - I/O1 [pin 1] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### D4 — [SS34](https://www.flux.ai/lcsc/ss34~6q67.md) - Role Details: Schottky diode preventing battery backfeed into the solar panel and reducing reverse-current risk - Forward Voltage: 0.3V to 0.45V - Package: SMA - Manufacturer Name: UMW(友台半导体) - Role: Solar Reverse Blocking - Diode Type: Schottky - Manufacturer Part Number: SS34 - LCSC Part Number: C2758511 - Datasheet URL: https://www.lcsc.com/datasheet/C2758511.pdf - Package or Case Code: SMB_L4.3-W3.6-LS5.4-RD - JLCPCB Part Class: Extended Part - Reverse Voltage: 40V - Part Type: Schottky Barrier Diodes (SBD) **Pins:** - A [pin 2] - K [pin 1] ### D5 — [SS54B](https://www.flux.ai/adrian95/ss54b~g3u.md) - Package: Surface Mount - Role: Motor Flyback Diode - Manufacturer Name: MDD - Part Type: Diode - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SS54B - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/NextGen%20Components%20PDFs/SMBSS540000S54.pdf - Role Details: Schottky flyback diode placed across the motor connector to absorb inductive energy when the motor current is switched by the MOSFET. **Pins:** - A [pin 2] - K [pin 1] ### D6 — [0402ESDA-05N](https://www.flux.ai/adrian95/0402esda-05n~pwx.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role: ESD Protection - Part Type: Diode - Package: 0402 - Role Details: Across-line bidirectional ESD protection for external transducer connector - Manufacturer Name: BORN - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2304140030_BORN-0402ESDA-05N_C316049.pdf - Manufacturer Part Number: 0402ESDA-05N **Pins:** - A1 [pin 1] - A2 [pin 2] ### D7 — [TPD4E05U06DQAR](https://www.flux.ai/jharwinflux/tpd4e05u06dqar~rl.md) - Manufacturer Part Number: TPD4E05U06DQAR - Role Details: 4-channel low-capacitance ESD protection array for CAM_SCLK, CAM_MISO, CAM_MOSI, and CAM_CS at the external camera connector - License: https://creativecommons.org/licenses/by/4.0/ - Role: Camera SPI ESD Protection - Manufacturer Name: Texas Instruments Inc. - Datasheet URL: https://www.ti.com/lit/ds/symlink/tpd4e05u06.pdf - Part Type: Diode - Package: USON-10 **Pins:** - D1- [pin 2] - D1+ [pin 1] - D2- [pin 5] - D2+ [pin 4] - GND_1 [pin 3] - GND_2 [pin 8] - NC_1 [pin 6] - NC_2 [pin 7] - NC_3 [pin 9] - NC_4 [pin 10] ### D8 — [VS3V3BC1HST15R](https://www.flux.ai/adrian95/vs3v3bc1hst15r~av9.md) - Package: 0603 - Manufacturer Name: Rohm Semiconductor - Datasheet URL: https://fscdn.rohm.com/en/products/databook/datasheet/discrete/diode/zener/vs3v3bc1hs-e.pdf - Role: Camera Power TVS Protection - Manufacturer Part Number: VS3V3BC1HST15R - Role Details: Unidirectional TVS diode from 3V3_MCU to GND at the external camera connector power pin - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Diode **Pins:** - A [pin 2] - K [pin 1] ### D9 — [VS3V3BC1HST15R](https://www.flux.ai/adrian95/vs3v3bc1hst15r~av9.md) - Datasheet URL: https://fscdn.rohm.com/en/products/databook/datasheet/discrete/diode/zener/vs3v3bc1hs-e.pdf - Manufacturer Name: Rohm Semiconductor - Package: 0603 - Part Type: Diode - License: https://creativecommons.org/licenses/by/4.0/ - Role: IR Power TVS Protection - Role Details: Unidirectional TVS diode from the switched IR 3.3 V output to GND at the external illuminator connector. - Manufacturer Part Number: VS3V3BC1HST15R **Pins:** - A [pin 2] - K [pin 1] ### IC-1 — [INA260AIPW](https://www.flux.ai/jlamflux/ina260aipw~d4.md) - Role Details: INA260 inserted in the solar input path to measure solar panel voltage, current, and power independently from the battery monitor - Package: TSSOP-16 - Manufacturer Part Number: INA260AIPW - Manufacturer Name: Texas Instruments - Role: Solar Power Monitor - Datasheet URL: https://www.ti.com/lit/ds/symlink/ina260.pdf?ts=1699435968584&ref_url=https%253A%252F%252Fwww.google.com%252F **Pins:** - A0 [pin 5] - A1 [pin 4] - ALERT [pin 7] - GND_1 [pin 6] - GND_2 [pin 11] - IN-_1 [pin 14] - IN-_2 [pin 15] - IN-_3 [pin 16] - IN+_1 [pin 1] - IN+_2 [pin 2] - IN+_3 [pin 3] - NC [pin 13] - SCL [pin 9] - SDA [pin 8] - VBUS [pin 12] - VS [pin 10] ### J1 — [PJ-051AH](https://www.flux.ai/vasy_skral/pj-051ah~yy8.md) - Datasheet URL: https://www.cuidevices.com/product/resource/digikeypdf/pj-051ah.pdf - Package: Through Hole - Manufacturer Name: CUI Devices - Role Details: Board-edge barrel jack for nominal 12 V battery input - Part Type: Connector - Manufacturer Part Number: PJ-051AH - Role: Power Input **Pins:** - Center Pin [pin 1] - MountPin [pin MP1] - MountPin [pin MP2] - Switch [pin 3] - Terminal [pin 2] ### J2 — [3220-10-0300-00](https://www.flux.ai/adrian95/3220-10-0300-00~4yk.md) - Manufacturer Name: CNC Tech - Role Details: ARM Cortex SWD access for STM32L433 programming and debug - Manufacturer Part Number: 3220-10-0300-00 - Datasheet URL: https://www.cnctech.us/pdfs/3220-XX-0300-00_.pdf - Role: SWD Debug Header - Package: CNC_3220-10-0300-00 - Package or Case Code: CNC_3220-10-0300-00 - Part Type: Connector **Pins:** - 1 [pin 1] - 10 [pin 10] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J3 — [USB4105-GF-A](https://www.flux.ai/adrian95/usb4105-gf-a~im9.md) - Manufacturer Name: GCT - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/5492/USB4105.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role: USB DFU Connector - Symbol Style: parametric-v1 - Manufacturer Part Number: USB4105-GF-A - Part Type: USB C - Manufacturer Name: GCT - Package: USB4105-GF-A - Role Details: USB Type-C receptacle dedicated to STM32 USB FS field firmware updates; not intended to power the board **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND [pin A1_B12] - GND__1 [pin B1_A12] - SBU1 [pin A8] - SBU2 [pin B8] - SHELL_GND [pin SH1] - SHELL_GND__1 [pin SH2] - SHELL_GND__2 [pin SH3] - SHELL_GND__3 [pin SH4] - VBUS [pin A4_B9] - VBUS__1 [pin B4_A9] ### J4 — [B2P-VH(LF)(SN)](https://www.flux.ai/adrian95/b2p-vhlfsn~cao.md) - Manufacturer Name: JST Sales America Inc. - Part Type: Connector - Package: Through Hole - Role Details: 2-pin locking through-hole solar input connector for nominal 12 V panel input, intentionally distinct from the battery barrel jack to prevent user confusion. - Role: Solar Input Connector - Manufacturer Part Number: B2P-VH(LF)(SN) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/eVH.pdf **Pins:** - P1 [pin 1] - P2 [pin 2] ### J5 — [0039293026](https://www.flux.ai/adrian95/0039293026~vcd.md) - Manufacturer Part Number: 0039293026 - Role: Feeder Motor Connector - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Manufacturer Name: Molex - Datasheet URL: https://www.molex.com/en-us/products/part-detail/39293026?display=pdf - Package or Case Code: 39-29-3026 - Role Details: 2-pin locking motor output connector for 12 V feeder motor wiring, selected to handle several amps continuous and be visually distinct from battery and solar inputs. - Package: Through Hole **Pins:** - 1 [pin 1] - 2 [pin 2] ### J7 — [532610471](https://www.flux.ai/lcsc/532610471~lll3.md) - Package or Case Code: CONN-SMD_4P-P1.25_53261-0471 - Role Details: 1.25 mm 4-pin external connector for illuminated pushbutton cable; intended to match MX 1.25 4Y harness - Manufacturer Part Number: 532610471 - Manufacturer Name: MOLEX - JLCPCB Part Class: Extended Part - Part Type: Wire To Board / Wire To Wire Connector - LCSC Part Number: C240847 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2406281007_MOLEX-532610471_C240847.pdf - Product Info Url: https://lcsc.com/product-detail/Wire-To-Board-Wire-To-Wire-Connector_MOLEX_53261-0471_MOLEX-53261-0471_C240847.html **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### Q1 — [IRLR7843TRLPBF](https://www.flux.ai/lcsc/irlr7843trlpbf~daiw.md) - Role Details: Logic-level N-channel MOSFET used as a low-side switch for PWM speed control of the 12 V feeder motor from an STM32 GPIO. - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2005300012_Infineon-Technologies-IRLR7843TRLPBF_C538178.pdf - Manufacturer Name: Infineon(英飞凌) - Manufacturer Part Number: IRLR7843TRLPBF - JLCPCB Part Class: Extended Part - Package or Case Code: DPAK_L6.5-W6.0-P2.29-LS9.9-TL - Product Info Url: https://lcsc.com/product-detail/MOSFET_Infineon-Technologies-IRLR7843TRLPBF_C538178.html - Package: DPAK_L6.5-W6.0-P2.29-LS9.9-TL - Part Type: MOSFETs - Role: Motor PWM Switch - LCSC Part Number: C538178 **Pins:** - D [pin 4] - G [pin 1] - S [pin 3] ### Q2 — [FDC6306P](https://www.flux.ai/lcsc/fdc6306p~3il.md) - Manufacturer Name: onsemi(安森美) - LCSC Part Number: C124461 - Role: PGA460 Half-Bridge High-Side MOSFET - JLCPCB Part Class: Extended Part - Manufacturer Part Number: FDC6306P - Role Details: External P-channel MOSFET for PGA460 direct-drive half-bridge transducer excitation - Package or Case Code: TSOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR - Part Type: MOSFETs - Package: TSOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR **Pins:** - D1 [pin 6] - D2 [pin 4] - G1 [pin 1] - G2 [pin 3] - S1 [pin 5] - S2 [pin 2] ### Q3 — [DMP2045U-7](https://www.flux.ai/lcsc/dmp2045u-7~b5ho.md) - Manufacturer Part Number: DMP2045U-7 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2412251056_Diodes-Incorporated-DMP2045U-7_C459541.pdf - JLCPCB Part Class: Extended Part - Package: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR-CW - Manufacturer Name: DIODES(美台) - Product Info Url: https://lcsc.com/product-detail/MOSFET_Diodes-Incorporated-DMP2045U-7_C459541.html - Part Type: MOSFETs - LCSC Part Number: C459541 - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR-CW - Role: IR Illuminator High-Side Switch - Role Details: Logic-level P-channel MOSFET used as an active-low high-side load switch from 3V3_MCU to the external IR illuminator connector so the load stays off during MCU sleep/reset. **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q4 — [2N7002K](https://www.flux.ai/jecstronic/2n7002k~8y.md) - Manufacturer Part Number: 2N7002K - Manufacturer Name: MDD - Datasheet URL: https://www.infineon.com/dgdl/Infineon-2N7002-DS-v02_04-en.pdf - Role: LED Driver - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Low-side MOSFET controlled by PB13 to switch the external pushbutton LED return - Part Type: Transistor - Package: SOT-23 **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### SW1 — [SS-12D10L5](https://www.flux.ai/lcsc/ss-12d10l5~58d7.md) - Manufacturer Name: XKB Connectivity(中国星坤) - Package: Through Hole - Operating Temperature: -40~+85℃ - Package or Case Code: SW-TH_SS-12D10L5 - Manufacturer Part Number: SS-12D10L5 - Role: Main Power Switch - Current Rating: 3A - Role Details: User-operated smaller slide switch that disconnects the battery discharge path to VIN_12V while leaving the solar-to-battery charge path connected upstream. - LCSC Part Number: C319012 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302232_XKB-Connection-SS-12D10L5_C319012.pdf - Product Info Url: https://lcsc.com/product-detail/Toggle-Switches_XKB-Enterprise-SS-12D10L5_C319012.html - Voltage Rating: 125V - Throw Configuration: Single Pole Double Throw (SPDT) - Contact Material: Copper alloy - Part Type: Slide Switches **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### SW2 — [KH-6X6X5H-STM](https://www.flux.ai/lcsc/kh-6x6x5h-stm~12so.md) - Throw Configuration: SPST - Switch Type: Tactile Switch - Duplicate Pin Numbers Are Jumpers: true - Role Details: USB DFU BOOT button: normally-open tactile switch tying BOOT0 to 3V3_MCU when pressed; hold while tapping RESET to enter STM32 USB DFU bootloader. - Part Type: Tactile Switches - Voltage Rating: 12V - Contact Material: gold-plated or silver alloy - Role: Switching - Current Rating: 50mA - LCSC Part Number: C2837531 - Package or Case Code: SW-SMD_4P-L6.0-W6.0-P4.50-LS9.0-2 - Manufacturer Part Number: KH-6X6X5H-STM - JLCPCB Part Class: Extended Part - Manufacturer Name: kinghelm(金航标) **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### SW3 — [KH-6X6X5H-STM](https://www.flux.ai/lcsc/kh-6x6x5h-stm~12so.md) - Role: Switching - Switch Type: Tactile Switch - Throw Configuration: SPST - Manufacturer Name: kinghelm(金航标) - Manufacturer Part Number: KH-6X6X5H-STM - JLCPCB Part Class: Extended Part - LCSC Part Number: C2837531 - Package or Case Code: SW-SMD_4P-L6.0-W6.0-P4.50-LS9.0-2 - Current Rating: 50mA - Role Details: USB DFU RESET button: normally-open tactile switch tying NRST to GND when pressed; tap while BOOT is held to reset into STM32 USB DFU bootloader. - Contact Material: gold-plated or silver alloy - Duplicate Pin Numbers Are Jumpers: true - Voltage Rating: 12V - Part Type: Tactile Switches **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### U1 — [TPS54302DDCR](https://www.flux.ai/lcsc/tps54302ddcr~p7gv.md) - Operating Voltage: 4.5V to 60V - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2411041759_Texas-Instruments-TPS54302DDCR_C311983.pdf - Product Info Url: https://lcsc.com/product-detail/Others_Texas-Instruments_TPS54302DDCR_Texas-Instruments-TI-TPS54302DDCR_C311983.html - Manufacturer Name: TI(德州仪器) - LCSC Part Number: C311983 - Logic Function: Buck Converter - Role Details: 12 V battery input to regulated 5 V modem supply with 3 A capability - Integrated Circuit Type: Switching Regulator - Package: SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL - Part Type: DC-DC Converters - Package or Case Code: SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL - Role: Buck Regulator - JLCPCB Part Class: Extended Part - Power Consumption: Low - Frequency: 340kHz - Manufacturer Part Number: TPS54302DDCR **Pins:** - BOOT [pin 6] - EN [pin 5] - FB [pin 4] - GND [pin 1] - SW [pin 2] - VIN [pin 3] ### U2 — [STM32L433CCT6](https://www.flux.ai/lcsc/stm32l433cct6~xpml.md) - Manufacturer Part Number: STM32L433CCT6 - Package or Case Code: LQFP-48_L7.0-W7.0-P0.50-LS9.0-BL - Role Details: STM32L433 host controller for the Blues modem and future feeder control logic - Product Info Url: https://lcsc.com/product-detail/ST-Microelectronics_STMicroelectronics_STM32L433CCT6_STM32L433CCT6_C110061.html - Manufacturer Name: ST(意法半导体) - Part Type: ST Microelectronics - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1810010717_STMicroelectronics-STM32L433CCT6_C110061.pdf - Package: LQFP-48_L7.0-W7.0-P0.50-LS9.0-BL - LCSC Part Number: C110061 - Role: Main MCU **Pins:** - NRST [pin 7] - PA0 [pin 10] - PA1 [pin 11] - PA10 [pin 31] - PA11 [pin 32] - PA12 [pin 33] - PA13 [pin 34] - PA14 [pin 37] - PA15 [pin 38] - PA2 [pin 12] - PA3 [pin 13] - PA4 [pin 14] - PA5 [pin 15] - PA6 [pin 16] - PA7 [pin 17] - PA8 [pin 29] - PA9 [pin 30] - PB0 [pin 18] - PB1 [pin 19] - PB10 [pin 21] - PB11 [pin 22] - PB12 [pin 25] - PB13 [pin 26] - PB14 [pin 27] - PB15 [pin 28] - PB2 [pin 20] - PB3 [pin 39] - PB4 [pin 40] - PB5 [pin 41] - PB6 [pin 42] - PB7 [pin 43] - PB8 [pin 45] - PB9 [pin 46] - PC13 [pin 2] - PC14/OSC32_IN [pin 3] - PC15/OSC32_OUT [pin 4] - PH0/OSCIN [pin 5] - PH1/OSCOUT [pin 6] - PH3/BOOT0 [pin 44] - VBAT [pin 1] - VDD [pin 48] - VDD [pin 24] - VDDA/VREF+ [pin 9] - VDDUSB [pin 36] - VSS [pin 35] - VSS [pin 47] - VSS [pin 23] - VSSA/VREF- [pin 8] ### U3 — [MCP1700T-3302E-TT](https://www.flux.ai/adrian95/mcp1700t-3302e-tt~h60.md) - Manufacturer Name: Microchip Technology - License: https://creativecommons.org/licenses/by/4.0/ - Role: 3.3V Regulator - Datasheet URL: https://datasheet.octopart.com/MCP1700T-3302E/TT-Microchip-datasheet-532260.pdf - Role Details: Local LDO for MCU supply from 5V_MODEM - Package: SOT-23-3 - Manufacturer Part Number: MCP1700T-3302E/TT - Part Type: Integrated Circuit **Pins:** - GND [pin 1] - VI [pin 3] - VO [pin 2] ### U4 — [INA260AIPW](https://www.flux.ai/jlamflux/ina260aipw~d4.md) - Package: TSSOP-16 - Role Details: INA260 on VIN_12V path for battery current, voltage, and power telemetry; I2C connected to STM32 with address plan reserved for future solar and motor monitors - Role: Battery Power Monitor - Manufacturer Part Number: INA260AIPW - Datasheet URL: https://www.ti.com/lit/ds/symlink/ina260.pdf?ts=1699435968584&ref_url=https%253A%252F%252Fwww.google.com%252F - Manufacturer Name: Texas Instruments **Pins:** - A0 [pin 5] - A1 [pin 4] - ALERT [pin 7] - GND_1 [pin 6] - GND_2 [pin 11] - IN-_1 [pin 14] - IN-_2 [pin 15] - IN-_3 [pin 16] - IN+_1 [pin 1] - IN+_2 [pin 2] - IN+_3 [pin 3] - NC [pin 13] - SCL [pin 9] - SDA [pin 8] - VBUS [pin 12] - VS [pin 10] ### U5 — [INA260AIPW](https://www.flux.ai/lcsc/ina260aipw~bqcf.md) - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Operational-Amplifiers_TI_INA260AIPW_INA260AIPW_C181331.html - Package: TSSOP-16 - Manufacturer Name: TI(德州仪器) - Part Type: PMIC - Current & Power Monitors & Regulators - Manufacturer Part Number: INA260AIPW - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010331_Texas-Instruments-INA260AIPW_C181331.pdf - LCSC Part Number: C181331 - Role: Motor Power Monitor - Role Details: INA260 inserted in the feeder motor supply path for real-time motor current, voltage, and power telemetry over I2C. - Package or Case Code: TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL **Pins:** - A0 [pin 5] - A1 [pin 4] - ALERT [pin 7] - GND [pin 11] - GND [pin 6] - IN- [pin 16] - IN- [pin 15] - IN- [pin 14] - IN+ [pin 2] - IN+ [pin 3] - IN+ [pin 1] - NC [pin 13] - SCL [pin 9] - SDA [pin 8] - VBUS [pin 12] - VS [pin 10] ### U6 — [PGA460TPWR](https://www.flux.ai/jecstronic/pga460tpwr~a3.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role: Ultrasonic Front-End - Datasheet URL: https://www.ti.com/lit/ds/symlink/pga460.pdf - Manufacturer Part Number: PGA460TPWR - Package: TSSOP-16 - Manufacturer Name: Texas Instruments - Part Type: Integrated Circuit - Role Details: TI PGA460 ultrasonic transducer driver and signal processor for external 2-wire waterproof transducer **Pins:** - AVDD [pin 16] - DECPL [pin 13] - GND_1 [pin 1] - GND_2 [pin 4] - GNDP [pin 6] - INN [pin 3] - INP [pin 2] - IO [pin 8] - IOREG [pin 14] - OUTA [pin 5] - OUTB [pin 7] - RXD [pin 11] - SCLK [pin 12] - TEST [pin 9] - TXD [pin 10] - VPWR [pin 15] ### U7 — [B8B-XH-A(LF)(SN)](https://www.flux.ai/adrian95/b8b-xh-alfsn~8f6.md) - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/eXH.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: JST Sales America Inc. - Role Details: JST XH 8-pin external connector: pin 1 GND, pin 2 3V3_MCU for camera power, pin 3 CAM_SCLK, pin 4 CAM_MISO, pin 5 CAM_MOSI, pin 6 CAM_CS, pin 7 IR_ILLUM_3V3_SW, pin 8 GND. Mating cable is the JST XH 8-pin cable side. - Part Type: Connector - Package: Through Hole - Manufacturer Part Number: B8B-XH-A(LF)(SN) - Role: Combined Camera and IR Connector **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] ### X1 — [NX3225GD-8MHZ-STD-CRA-3](https://www.flux.ai/lcsc/nx3225gd-8mhz-std-cra-3~3n50.md) - Role Details: 8MHz crystal for STM32L433 system clock - Package: OSC-SMD_2P-L3.2-W2.5 - Manufacturer Part Number: NX3225GD-8MHZ-STD-CRA-3 - Part Type: Crystals - JLCPCB Part Class: Extended Part - Operating Temperature: -40~+150℃ - Role: HSE Crystal - Frequency: 8MHz - Frequency Stability: 150ppm - LCSC Part Number: C889706 - Manufacturer Name: NDK - Load Capacitor: 8pF - Package or Case Code: OSC-SMD_2P-L3.2-W2.5 **Pins:** - 1 [pin 1] - GND [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/greg/feederpilotmay262026~326](https://www.flux.ai/greg/feederpilotmay262026~326).* --- *Generated from [https://www.flux.ai/greg/feederpilotmay262026~326](https://www.flux.ai/greg/feederpilotmay262026~326)*