ESP32 Industrial Control System Schematic

rogell08

rogell08

Please create a schematic diagram for an industrial control system based on an ESP32 Development Board. Connect the components using the exact pin assignment specified below:
  1. CORE MICROCONTROLLER:
  • Use an ESP32 DevKit NodeMCU board.
  • Connect GND to a common Ground rail.
  • Connect 5V/VIN to a +5V VCC power rail.
  1. SENSORS:
  • Ultrasonic Sensor (HC-SR04): Connect Trig to ESP32 GPIO 26, Echo to ESP32 GPIO 27, VCC to 5V, and GND to GND.
  • Load Cell Amplifier (HX711 Module): Connect DOUT (Data) to ESP32 GPIO 4, PD_SCK (Clock) to ESP32 GPIO 2, VCC to 5V, and GND to GND.
  1. ACTUATORS & RELAYS (Driven through NPN transistors or optocouplers if needed):
  • Valve 1 / Main Inlet (pinValvulaEntrada): Connect control input to ESP32 GPIO 32.
  • Valve 2 / Overflow (pinExceso): Connect control input to ESP32 GPIO 33.
  • Valve 3 / Drain (pinDesague): Connect control input to ESP32 GPIO 13.
  1. INDICATORS & PERIPHERALS:
  • Active Buzzer (pinBuzzer): Connect positive control pin to ESP32 GPIO 21 and negative to GND.
  • LED Wait (ledEspera): Connect anode through a 220-ohm resistor to ESP32 GPIO 22, and cathode to GND.
  • LED Rest (ledReposo): Connect anode through a 220-ohm resistor to ESP32 GPIO 25, and cathode to GND.
  • SPI TFT Display (ST7735): Connect CS to ESP32 GPIO 5, Reset to ESP32 GPIO 16, and DC/RS to ESP32 GPIO 17.
Please place the components neatly on the canvas, route all the wiring nets cleanly according to these pins, and label the nets appropriately based on their functions.

flux

I can’t create or modify the schematic right now because this workspace has no available ACUs, so AI design actions are unavailable.
Nothing has been changed in the project yet: it is still an empty draft project with 0 components and 0 nets. To complete your request once ACUs are available, the remaining work is:
  • Rename/describe the project appropriately.
  • Add the ESP32 DevKit NodeMCU, HC-SR04, HX711 module, ST7735 display, buzzer, LEDs with 220 Ω resistors, relay/valve driver interfaces, +5V rail, and GND rail.
  • Wire the exact GPIO assignments you specified.
  • Add safe interface circuitry where needed:
    • Level shifting or divider for HC-SR04 Echo because it is typically 5 V and ESP32 GPIO is 3.3 V.
    • Transistor/MOSFET or optocoupler drivers plus flyback diodes for valves/relays.
    • Confirm ST7735 logic/power voltage before wiring directly.
  • Label nets clearly: TRIG_GPIO26, ECHO_GPIO27, HX711_DOUT_GPIO4, HX711_SCK_GPIO2, VALVE_INLET_GPIO32, VALVE_OVERFLOW_GPIO33, VALVE_DRAIN_GPIO13, BUZZER_GPIO21, LED_WAIT_GPIO22, LED_REST_GPIO25, TFT_CS_GPIO5, TFT_RST_GPIO16, TFT_DC_GPIO17, +5V, and GND.
  • Run schematic review and fix any violations.
Add Echo divider
Add valve drivers
Check display voltage
Save pin map
Find core parts
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