Several sensors trying to access one pump relay at the same time (irrigation)

Projects General Guidance
14

what about something like this for the pump?

#include <ESP8266WiFi.h>
#include <WiFiUdp.h>

// Wi-Fi credentials
const char* ssid = "YOUR_WIFI_SSID";
const char* password = "YOUR_WIFI_PASSWORD";

// Pump controller port
unsigned int localPort = 3333;

// Pump relay pin
const int pumpRelayPin = D1;

WiFiUDP udp;

// Keep track of active requests
bool sensorRequests[3] = {false, false, false};

void setup() {
  Serial.begin(115200);
  connectToWiFi();
  udp.begin(localPort);
  pinMode(pumpRelayPin, OUTPUT);
  digitalWrite(pumpRelayPin, LOW); // Initially turn off pump
}

void loop() {
  int packetSize = udp.parsePacket();
  if (packetSize) {
    char packet[2];
    udp.read(packet, 2);
    int sensorId = packet[0] - '0';
    bool requestStatus = packet[1] == '1';

    if (requestStatus) {
      handleRequest(sensorId);
    } else {
      handleRequestRemoval(sensorId);
    }
  }
}

void handleRequest(int sensorId) {
  sensorRequests[sensorId] = true;
  if (needsWater()) {
    // Turn on pump
    digitalWrite(pumpRelayPin, HIGH);
  }
}

void handleRequestRemoval(int sensorId) {
  sensorRequests[sensorId] = false;
  if (!needsWater()) {
    // Turn off pump
    digitalWrite(pumpRelayPin, LOW);
  }
}

bool needsWater() {
  return sensorRequests[0] || sensorRequests[1] || sensorRequests[2];
}

void connectToWiFi() {
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
}