# Payable Fuchsia Interocitor ## Description ESP32-Controlled Power Management PCB with Functional Zones ## Project Details - **Owner:** whitemusk - **Created:** 11/8/2025 - **Last Updated:** 11/11/2025 - **Visibility:** Public - **ERC/DRC Checks Required:** Yes - **Global Label Visibility:** Enabled - **Domain:** Consumer Electronics - **tft_header_refdes:** J2 - **Power Requirements:** Mains - **Part Type:** Microcontroller - **Relay Strategy:** single solenoid per relay; retain single-channel relays - **Human Interface:** Display - **System Architecture:** flowchart LR Controller --> Power Power --> Relays Relays --> Display Display --> Indicators Indicators --> Connectors/TestPoints ## Key Components ### D1 — [SS54B](https://www.flux.ai/lcsc/ss54b.md) - FunctionalBlock: PowerProtection - Diode Type: Schottky Diode - LCSC Part Number: C360458 - Package or Case Code: DO-214BA_L4.8-W2.9-LS5.3-RD - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410121803_XUMAO-SS54B_C22466134.pdf - JLCPCB Part Class: Extended Part - Forward Voltage: 550mV - Part Type: Schottky Barrier Diodes (SBD) - Manufacturer Part Number: SS54B - Manufacturer Name: XUMAO - Product Info Url: https://www.lcsc.com/product-detail/schottky-diodes_xumao-ss54b_C22466134.html - Role Details: Schottky diode for reverse polarity protection - Reverse Voltage: 40V - Role: Protection **Pins:** - A [pin 2] - C [pin 1] ### D2 — [SMBJ18A](https://www.flux.ai/lcsc/smbj18a.md) - Role Details: Transient voltage suppression at power input - Part Type: TVS - Product Info Url: https://lcsc.com/product-detail/TVS_Shikues-SMBJ18A_C499836.html - LCSC Part Number: C499836 - Role: Protection - JLCPCB Part Class: Extended Part - Manufacturer Part Number: SMBJ18A - Package or Case Code: SMB_L4.6-W3.6-LS5.3-R-RD - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010132_Shikues-SMBJ18A_C499836.pdf - Manufacturer Name: SHIKUES(时科) - FunctionalBlock: PowerProtection **Pins:** - A [pin 1] - K [pin 2] ### D3 — [1N5408G A0G](https://www.flux.ai/lcsc/1n5408g-a0g.md) - Product Info Url: https://lcsc.com/product-detail/New-Arrivals_Taiwan-Semiconductor-Taiwan-Semicon-1N5408G-R0G_C483907.html - Part Type: Diodes - General Purpose - Manufacturer Name: Taiwan Semiconductor(台湾半导体) - Manufacturer Part Number: 1N5408G A0G - Role Details: Flyback diode for relay coils - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2001151033_Taiwan-Semiconductor-1N5408G-A0G_C483907.pdf - Package or Case Code: DO-201AD_BD5.3-L8.4-P12.50-D1.4-RD - FunctionalBlock: Relays - Role: Flyback / Freewheeling - LCSC Part Number: C483907 - JLCPCB Part Class: Extended Part **Pins:** - 1 [pin 1] - 2 [pin 2] ### D4 — [1N5408](https://www.flux.ai/lcsc/1n5408.md) - LCSC Part Number: C2848130 - Role: Flyback / Freewheeling - Package or Case Code: DO-201AD_BD5.3-L9.0-P13.00-D1.3-RD - FunctionalBlock: Relays - Part Type: Diodes - General Purpose - Manufacturer Part Number: 1N5408 - Manufacturer Name: HORNBY ELECTRONIC(南通康比) - JLCPCB Part Class: Extended Part - Role Details: Flyback diode for relay coils **Pins:** - A [pin 2] - K [pin 1] ### D5 — [LTST-C190KRKT](https://www.flux.ai/adrian95/ltst-c190krkt.md) - Role Details: Red indicator LED - Manufacturer Part Number: LTST-C190KRKT - Part Type: LED - Datasheet URL: https://optoelectronics.liteon.com/upload/download/DS-22-99-0151/LTST-C190KRKT.pdf - Manufacturer Name: Lite-On Inc. - Role: Indicator - License: https://creativecommons.org/licenses/by/4.0/ - FunctionalBlock: Indicators **Pins:** - A [pin 2] - K [pin 1] ### D6 — [LTST-C190KRKT](https://www.flux.ai/adrian95/ltst-c190krkt.md) - Part Type: LED - Manufacturer Part Number: LTST-C190KRKT - Role Details: Red indicator LED - License: https://creativecommons.org/licenses/by/4.0/ - Role: Indicator - Datasheet URL: https://optoelectronics.liteon.com/upload/download/DS-22-99-0151/LTST-C190KRKT.pdf - FunctionalBlock: Indicators - Manufacturer Name: Lite-On Inc. **Pins:** - A [pin 2] - K [pin 1] ### F1 — [0ZCF0200AF2C](https://www.flux.ai/adrian95/0zcf0200af2c.md) - Part Type: Fuse - FunctionalBlock: PowerProtection - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://belfuse.com/resources/datasheets/circuitprotection/ds-cp-0zcf-series.pdf - Package or Case Code: FUSC7451X80N - Role: Protection - Manufacturer Name: BelFuse - Manufacturer Part Number: 0ZCF0200AF2C - Role Details: Fuse for input overcurrent and reverse polarity **Pins:** - ~ [pin 2] - ~ [pin 1] ### J1 — [Pin Header 02x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-02x04-254mm-vertical.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role: Connector - FunctionalBlock: Connectors/TestPoints - Part Type: Connector - Role Details: Interface header, 2x4, 2.54mm pitch **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] - Pin_7 [pin 7] - Pin_8 [pin 8] ### J2 — [Pin Header 01x08 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x08-254mm-vertical.md) - Part Type: Connector - pin_name_visibility: true - FunctionalBlock: DisplayInterface - Role Details: Display interface header for ST7735 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Interface},{ - label: ST7735 1.8" TFT Display - pin_names: ["LED","SCK","SDA","A0","RESET","CS","GND","VCC"] - Pin Names: ["LED","SCK","SDA","A0","RESET","CS","GND","VCC"] - Component Label: ST7735 1.8" TFT Display **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] ### J3 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal.md) - Part Type: Connector - FunctionalBlock: Connectors/TestPoints - Role: Terminal - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Manufacturer Part Number: 691137710002 - Role Details: 2-pin 5.08 mm pitch terminal block - Manufacturer Name: Würth Elektrik **Pins:** - P1 [pin 1] - P2 [pin 2] ### J4 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal.md) - Role: Connector - Part Type: Connector - FunctionalBlock: Connectors/TestPoints - Manufacturer Name: Würth Elektrik - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Manufacturer Part Number: 691137710002 - Role Details: 2-pin 5.08 mm pitch terminal block **Pins:** - P1 [pin 1] - P2 [pin 2] ### J5 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal.md) - Manufacturer Part Number: 691137710002 - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Role: Connector - Manufacturer Name: Würth Elektrik - Part Type: Connector - Role Details: 2-pin 5.08 mm pitch terminal block - FunctionalBlock: Connectors/TestPoints **Pins:** - P1 [pin 1] - P2 [pin 2] ### TP_12V — [5019](https://www.flux.ai/adrian95/5019.md) - FunctionalBlock: Connectors/TestPoints - Package or Case Code: 5019 - Manufacturer Part Number: 5019 - Role Details: Test Point for 12V rail - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Role: Test Point - Part Type: Test Point - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Keystone Electronics **Pins:** - 1 [pin 1] ### TP_3V3 — [5019](https://www.flux.ai/adrian95/5019.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role: Test Point - Part Type: Test Point - Manufacturer Name: Keystone Electronics - Manufacturer Part Number: 5019 - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - FunctionalBlock: Connectors/TestPoints - Package or Case Code: 5019 - Role Details: Test Point for 3.3V rail **Pins:** - 1 [pin 1] ### TP_5V — [5019](https://www.flux.ai/adrian95/5019.md) - Role Details: Test Point for 5V rail - Part Type: Test Point - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Keystone Electronics - Role: Test Point - Manufacturer Part Number: 5019 - FunctionalBlock: Connectors/TestPoints - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Package or Case Code: 5019 **Pins:** - 1 [pin 1] ### TP_GND — [5019](https://www.flux.ai/adrian95/5019.md) - Role: Test Point - Package or Case Code: 5019 - Role Details: Test Point for GND - FunctionalBlock: Connectors/TestPoints - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Test Point - Manufacturer Name: Keystone Electronics - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Manufacturer Part Number: 5019 **Pins:** - 1 [pin 1] ### U1 — [ESP32-DEVKIT-V1](https://www.flux.ai/vasyl/esp32-devkit-v1.md) - Manufacturer Name: Espressif Systems - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf - FunctionalBlock: Controller - Role: Main MCU - Manufacturer Part Number: ESP32-DEVKIT-V1 - Part Type: Module - Symbol Style: Parametric **Pins:** - 3V3 [pin 1] - D12 [pin 27] - D13 [pin 28] - D14 [pin 26] - D15 [pin 3] - D18 [pin 9] - D19 [pin 10] - D2 [pin 4] - D21 [pin 11] - D22 [pin 14] - D23 [pin 15] - D25 [pin 23] - D26 [pin 24] - D27 [pin 25] - D32 [pin 21] - D33 [pin 22] - D34 [pin 19] - D35 [pin 20] - D4 [pin 5] - D5 [pin 8] - EN [pin 16] - GND [pin 2] - GND__1 [pin 29] - RX0 [pin 12] - RX2 [pin 6] - sensor_VN [pin 18] - sensor_VP [pin 17] - TX0 [pin 13] - TX2 [pin 7] - VIN [pin 30] ### U2 — [MP1584EN Module](https://www.flux.ai/adrian95/mp1584en-module.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Module - Role Details: 12V to 5V switching regulator module - Role: Power Conversion - FunctionalBlock: PowerRegulation **Pins:** - INPUT- [pin 8] - INPUT- [pin 7] - INPUT+ [pin 5] - INPUT+ [pin 6] - OUTPUT- [pin 4] - OUTPUT- [pin 3] - OUTPUT+ [pin 2] - OUTPUT+ [pin 1] ### U3 — [MP1584EN Module](https://www.flux.ai/adrian95/mp1584en-module.md) - Role Details: 12V to 3.3V switching regulator module - Role: Power Conversion - License: https://creativecommons.org/licenses/by/4.0/ - FunctionalBlock: PowerRegulation - Part Type: Module **Pins:** - INPUT- [pin 8] - INPUT- [pin 7] - INPUT+ [pin 5] - INPUT+ [pin 6] - OUTPUT- [pin 4] - OUTPUT- [pin 3] - OUTPUT+ [pin 2] - OUTPUT+ [pin 1] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/whitemusk/payable-fuchsia-interocitor](https://www.flux.ai/whitemusk/payable-fuchsia-interocitor).* --- *Generated from [https://www.flux.ai/whitemusk/payable-fuchsia-interocitor](https://www.flux.ai/whitemusk/payable-fuchsia-interocitor)*