Building Raspberry Pi Modem

flux

Work done
  • Updated project description to “Raspberry Pi Gateway Board Featuring Ethernet, ESP32, and Wi-Fi HaLow Support”
  • Defined system architecture in project property with mermaid diagram
  • Added 3.3 V LDO regulator U4
  • Added decoupling capacitors C1, C2, C3 and pull-up resistor on LDO EN
  • Added Raspberry Pi 40-pin header J1 and RJ45 MagJack with onboard magnetics J2
  • Created 5 V net connecting Pi pin 2 to U4:VIN and J2 power pins
Tasks not done
  • Integration of key modules:
    • W5500 Ethernet controller footprint
    • Seeed Studio XIAO ESP32 socket footprint
    • Wi-Fi HaLow (FGH100M-H) module footprint
    • Ground portal symbol
  • Net connections for 3.3 V distribution, MOSI/MISO/SCK, CS/INT/RESET signals
  • PCB outline definition for 80 mm×60 mm
Unable to do
  • RF keep-out zone around HaLow module (5 mm clearance)
  • Position RJ45 MagJack at board edge and allocate module areas
  • Configure layer stackup, power planes, and ground fill
Success criteria review
  • Key components added and interconnected: ❌ not yet (W5500, ESP32, HaLow missing)
  • Power supply distribution: ❌ partial (5 V net done, 3.3 V net not routed)
  • SPI bus and control signals: ❌ not implemented
  • RF keep-outs and layout constraints: ❌ not defined
Next step Add the W5500 Ethernet controller, ESP32 XIAO, and Wi-Fi HaLow module footprints (with ground portal), then route the 3.3 V and SPI/control nets to these modules.
D2
D5
J2
D8
J1 02 - U4 VIN
J1
J1 02 - U4 VIN
D6
D9
D4
GND
D10
D7
D0
D3
5V
J1 02 - U4 VIN
D1
3V3
C1
Capacitance
Capacitance
U4
C3
Capacitance
Capacitance
C2
Capacitance
Capacitance

To get started, talk to Flux or create a New Document.

Documents

    Documents are markdown text files which describe project goals, capture details, or even simulation outputs.

    Assets

    4-109100041-wio-wm6180-wifi-module-for-xiao.png

    4-109100041-wio-wm6180-wifi-module-for-xiao.png

    4-109100041-wio-wm6180-wifi-module-for-xiaoThumbnail
    drawing.svg

    drawing.svg

    drawingDefault

    Wi-Fi HaLow Module for Seeed Studio XIAO

    Wi-Fi HaLow Module for Seeed Studio XIAO thumbnail
    Raspberry Pi Gateway Board Featuring Ethernet, ESP32, and Wi-Fi HaLow Support

    Properties

    graph LR Pi[Raspberry Pi] -->|5V| Regulator[3.3V Regulator] Regulator -->|3.3V| W5500(W5500 Ethernet) Regulator -->|3.3V| ESP32(Seeed Studio XIAO ESP32) Regulator -->|3.3V| HaLow(Wi-Fi HaLow Module) Pi -->|MOSI/MISO/SCK| SPIBus[SPI Bus] SPIBus --> W5500 SPIBus --> ESP32 SPIBus --> HaLow Pi -->|CS_W5500| W5500 Pi -->|CS_ESP32| ESP32 Pi -->|CS_HaLow| HaLow Pi -->|UART TX/RX| HaLow

    109100041

    U

    seeedstudio.com/Wio-WM6180-Wi-Fi-HaLow-Module-for-XIAO-p-6395.html

    Pricing & Availability

    Distributor

    Qty 1

    Arrow

    $7.37

    Digi-Key

    $7.37

    LCSC

    $16.65–$16.78

    Mouser

    $7.52

    Controls