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Build a configurable field controller

A browser-configured controller reads industrial sensors and operates relays and Modbus devices.

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Build a configurable field controller — build photo collage from the creator’s source
masubo_bio · build photo collage

What the hardware does

A RaspberryPi CM4 and StamPLC connect physical sensors, relays and Modbus equipment to a configurable control interface for automation experiments.

How the agent helped

The creator attributes development help to Codex and describes iterating on real control hardware. The account supports an active prototype, not certification for unattended industrial operation.

Before you build

Creator reports ongoing real-hardware development. Wiring, electrical ratings and connected equipment need expert validation; not a finished turnkey product.

Follow the build

youcanjustbuildthings.openai.chatgpt.site

Original build story

Creator showcase

x.com

Supporting source

Hardware

All hardware

Shopping list

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Parts for one build. Reuse equipment you already own. Quantities are planning quantities unless the creator explicitly specifies a count; kit contents are not additional purchases.

Confirm before buying

  • CM4 carrier/configuration, power, communication wiring and field-device ratings are not given. This is not a complete industrial control design.

Quantities are for one build. Unless marked source-specified, they are planning quantities; confirm kit contents and the chosen configuration before ordering.

  1. Qty. 1Plan / confirm
    Required

    RaspberryPi CM4

    Application host.

    RAM, eMMC, wireless variant and carrier board are unspecified.

    Sources & quantity basis

    Creator source. Planning quantity for one build; check the selected configuration.

    Source-linked listing

    Model family; configuration not disclosed

    Source-linked; live page not verified

  2. Qty. 1Plan / confirm
    Required

    M5Stack StamPLC

    I/O and relay controller.

    Sources & quantity basis

    Creator source. Planning quantity for one build; check the selected configuration.

    View product

    Exact product

  3. Qty. To confirmPlan / confirm
    Required

    CM4 carrier, storage and power

    Make the compute module usable.

    A bare CM4 cannot be powered or connected like a standard Raspberry Pi; do not assume CM4Stack.

    Sources & quantity basis

    Setup requirement — check against your configuration. Planning quantity for one build; check the selected configuration.

    Use existing equipment or match the specification above. No exact purchase link verified.

  4. Qty. To confirmPlan / confirm
    Required

    Controller power and communication wiring

    Connect the host, PLC and field devices.

    Sources & quantity basis

    Setup requirement — check against your configuration. Planning quantity for one build; check the selected configuration.

    Use existing equipment or match the specification above. No exact purchase link verified.

  5. Qty. Per applicationPlan / confirm
    Conditional

    Modbus RS-485 sensors / relay modules

    Selected automation functions.

    Sources & quantity basis

    Creator source. Planning quantity for one build; check the selected configuration.

    No exact purchase link verified; confirm the model and requirements above before ordering.

  6. Qty. Per applicationPlan / confirm
    Conditional

    Pumps, valves, fans or lights

    Loads you want to control.

    Sources & quantity basis

    Creator source. Planning quantity for one build; check the selected configuration.

    No exact purchase link verified; confirm the model and requirements above before ordering.

  7. Qty. Designed for the loadPlan / confirm
    Required

    Rated enclosure, protection and field wiring

    Electrical integration.

    A qualified person must establish supply, relay/contact ratings and load protection before hardware is ordered.

    Sources & quantity basis

    Setup requirement — check against your configuration. Planning quantity for one build; check the selected configuration.

    Use existing equipment or match the specification above. No exact purchase link verified.

Source reviewed, not assembled or hands-on tested. A working product page does not confirm stock, firmware compatibility or a complete build.

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