WiFi Water Flow Meter Design

majidk

majidk

Design a WiFi-enabled water flow meter for a 3/4" PVC pipe with the following specifications:
Project Requirements Power Input
  • USB-C: 5V (15W) power input with appropriate protection circuitry
Connectivity
  • WiFi Module: ESP32 or similar for wireless connectivity and data transmission
Sensing
  • Ultrasonic Flow Sensor: External ultrasonic sensor suitable for 3/4" PVC pipe
  • Measure flow rate and total volume
  • Sensor is powered with 12V and outputs RS485
Power Management
  • Voltage Regulation: 3.3V regulator for powering the ESP32 and sensor
  • Protection: Reverse polarity protection, ESD protection, and decoupling capacitors
Supporting Components
  • Programming Interface: UART header for firmware updates
  • Status Indicators: LEDs for power, WiFi connection, and flow detection
  • Reset Circuit: Proper enable/reset network for the microcontroller
Request
Generate a complete schematic with all necessary components, including the power supply, microcontroller, sensor interface, and supporting circuitry.

flux

I can’t generate or modify the schematic right now because this workspace has no available ACUs, so AI execution tools are unavailable.
Current project state:
  • Project is empty: 0 components, 0 nets.
  • No schematic, PCB, or documentation has been created yet.
What remains to be done once ACUs are available:
  • Select concrete parts: ESP32 module, USB-C input/protection, 5V-to-12V boost or external 12V strategy, 3.3V regulator, RS485 transceiver, connectors, LEDs, headers, passives.
  • Create the schematic for:
    • USB-C 5V/15W input with CC resistors, fuse, TVS/ESD, and input filtering.
    • 12V rail for the ultrasonic RS485 flow sensor.
    • 3.3V rail for ESP32 and logic.
    • ESP32 boot/reset/programming circuitry.
    • RS485 interface between ESP32 UART and external sensor.
    • Status LEDs and decoupling.
  • Verify power budget, ESP32 boot strapping pins, RS485 termination/biasing, and protection coverage.
  • Optionally create a bring-up/test plan and firmware pin map.
When ACUs are available, I can build the full schematic directly in this project.
Document requirements
Find key parts
Calculate power budget
Draft block diagram
No schematic yet

Talk to Flux to get started.

No files yet

Documents

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

    Assets

    No assets added.

    Specific Silver Replicator

    Specific Silver Replicator thumbnail
    Welcome to your new project. Imagine what you can build here.

    Properties

    Properties describe core aspects of the project.

    Pricing & Availability

    See prices from popular manufacturers for your project.

    Controls