# PowerDistribution ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** alexlin2 - **Created:** 2/26/2026 - **Last Updated:** 2/27/2026 - **Visibility:** Public - **System Architecture:** ```mermaid flowchart TD CN1["CN1 24V input"] -->|VIN24| K1["K1 relay coil"] CN1 -->|VIN24| U1["U1 MP1584 buck"] U1 -->|5V| ESP1["ESP1 ESP32-S3 dev board"] ESP1 -->|GPIO4 RELAY_DRV| R4["R4 gate resistor"] R4 --> Q1["Q1 AO3400 MOSFET"] Q1 -->|RELAY_COIL_LOW| K1 K1 --> D1["D1 flyback diode"] SW1["SW1 E-stop switch"] -->|ESTOP_IN_RAW| Debounce["R2 C1 debounce"] Debounce -->|ESTOP_IN| ESP1 K1 -->|COM NO NC| J1["J1 to PDB"] ``` - **Forks:** 1 ## Key Components ### D1 — [1N5819HW-7-F](https://www.flux.ai/jecstronic/1n5819hw-7-f~x5v.md) - Manufacturer Part Number: 1N5819HW-7-F - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30217.pdf - Package: SOD-123 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Protection - Manufacturer Name: Diodes Incorporated - Role Details: Flyback diode across 24V relay coil (cathode to +24V) - Part Type: Diode **Pins:** - A [pin 2] - K [pin 1] ### ESP1 — [Seeed Studio XIAO ESP32S3 Sense](https://www.flux.ai/seeedstudio/seeed-studio-xiao-esp32s3-sense~as.md) - Product Info Url: https://wiki.seeedstudio.com/xiao_esp32s3_getting_started/ - Manufacturer Part Number: 113991115 - Part Type: Microcontroller - Purchase Url: https://www.seeedstudio.com/XIAO-ESP32S3-Sense-p-5639.html - Manufacturer Name: Seeed Studio - Datasheet URL: https://files.seeedstudio.com/wiki/SeeedStudio-XIAO-ESP32S3/res/esp32-s3_datasheet.pdf **Pins:** - 3V3 [pin 14] - 5V [pin 16] - D10_A10_MOSI_GPIO9_TOUCH9 [pin 13] - D7_RX_GPIO44 [pin 10] - D8_A8_SCK_GPIO7_TOUCH7 [pin 11] - D9_A9_MISO_GPIO8_TOUCH8 [pin 12] - GND [pin 15] - GPIO43_TX_D6 [pin 7] - TOUCH1_GPIO1_A0_D0 [pin 1] - TOUCH2_GPIO2_A1_D1 - TOUCH3_GPIO3_A2_D2 [pin 3] - TOUCH4_GPIO4_A3_D3 [pin 4] - TOUCH5_GPIO5_SDA_A4_D4 [pin 5] - TOUCH6_GPIO6_SCL_A5_D5 [pin 6] ### J2 — [USB1015-GF-L-A](https://www.flux.ai/adrian95/usb1015-gf-l-a~0sl.md) - Part Type: Connector - Manufacturer Name: GCT - Manufacturer Part Number: USB1015-GF-L-A - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/5335/USB1015_Spec.pdf **Pins:** - D- [pin 2] - D+ [pin 3] - GND [pin 4] - SHIELD [pin SH1] - SHIELD__1 [pin SH2] - SHIELD__2 [pin SH3] - SHIELD__3 [pin SH4] - VBUS [pin 1] ### K1 — [SRD-24VDC-SL-C](https://www.flux.ai/adrian95/srd-24vdc-sl-c~l0z.md) - Part Type: Relay - Package: Through Hole - Role: Power Cut Relay - Manufacturer Part Number: srd-24vdc-sl-c - Role Details: SPDT relay; use COM-NC for default-on supply to XT30 2; coil driven by Q1 with flyback diode D1. - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: EAGLE - Datasheet URL: https://pdf1.alldatasheet.com/datasheet-pdf/view/1132032/SONGLERELAY/SRD-24VDC-SL-C.html **Pins:** - COIL_1 [pin 2] - COIL_2 [pin 5] - COM [pin 1] - NC [pin 4] - NO [pin 3] ### Q1 — [IRLZ44NPBF](https://www.flux.ai/jecstronic/irlz44npbf~kg9.md) - Manufacturer Name: Infineon Technologies - Part Type: Transistor - Manufacturer Part Number: IRLZ44NPBF - Datasheet URL: https://www.mouser.com/datasheet/2/196/Infineon_IRLZ44N_DataSheet_v01_01_EN-3363447.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### XT30 1 — [XT30UPB-F30.G.Y](https://www.flux.ai/lcsc/xt30upb-f30pgpy~zr19.md) - Part Type: Power Connectors - Package or Case Code: CONN-TH_XT30UPB-F - Product Info Url: https://lcsc.com/product-detail/Banana-and-Tip-Connectors_Changzhou-Amass-Elec-XT30UPB-F_C108769.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2207151430_Changzhou-Amass-Elec-XT30UPB-F30-G-Y_C108769.pdf - JLCPCB Part Class: Extended Part - Manufacturer Part Number: XT30UPB-F30.G.Y - LCSC Part Number: C108769 - Manufacturer Name: AMASS(艾迈斯) **Pins:** - - [pin 2] - + [pin 1] ### XT30 2 — [XT30UPB-F30.G.Y](https://www.flux.ai/lcsc/xt30upb-f30pgpy~zr19.md) - Package or Case Code: CONN-TH_XT30UPB-F - Product Info Url: https://lcsc.com/product-detail/Banana-and-Tip-Connectors_Changzhou-Amass-Elec-XT30UPB-F_C108769.html - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2207151430_Changzhou-Amass-Elec-XT30UPB-F30-G-Y_C108769.pdf - Part Type: Power Connectors - LCSC Part Number: C108769 - Manufacturer Name: AMASS(艾迈斯) - Manufacturer Part Number: XT30UPB-F30.G.Y **Pins:** - - [pin 2] - + [pin 1] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/alexlin2/powerdistribution~3l](https://www.flux.ai/alexlin2/powerdistribution~3l).* --- *Generated from [https://www.flux.ai/alexlin2/powerdistribution~3l](https://www.flux.ai/alexlin2/powerdistribution~3l)*