🔧 Guia de Configuração do ESP32

https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

// ===== CONFIGURAÇÕES =====
#include <WiFi.h>
#include <WebSocketsServer.h>
#include <ArduinoJson.h>

const char* ssid = "SEU_WIFI";
const char* password = "SUA_SENHA";

const int GSR_PIN = 34;
const int PULSE_PIN = 35;
const int SAMPLES = 10;
const int READ_DELAY = 50;

WebSocketsServer webSocket = WebSocketsServer(81);

void setup() {
  Serial.begin(115200);
  
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  
  Serial.println("\n✅ WiFi conectado!");
  webSocket.begin();
  webSocket.onEvent(webSocketEvent);
  
  analogReadResolution(12);
  analogSetAttenuation(ADC_11db);
}

void webSocketEvent(uint8_t num, WStype_t type, uint8_t* payload, size_t length) {
  if(type == WStype_CONNECTED) {
    Serial.printf("📱 Cliente %u conectado!\n", num);
  }
}

int readSensor(int pin) {
  long sum = 0;
  for(int i = 0; i < SAMPLES; i++) {
    sum += analogRead(pin);
    delay(READ_DELAY / SAMPLES);
  }
  return sum / SAMPLES;
}

void loop() {
  webSocket.loop();
  
  int rawGSR = readSensor(GSR_PIN);
  int rawPulse = readSensor(PULSE_PIN);
  
  int gsrValue = map(rawGSR, 0, 4095, 0, 100);
  int pulseValue = map(rawPulse, 0, 4095, 40, 180);
  
  StaticJsonDocument<200> doc;
  doc["gsr"] = gsrValue;
  doc["pulse"] = pulseValue;
  doc["timestamp"] = millis();
  
  String output;
  serializeJson(doc, output);
  webSocket.broadcastTXT(output);
  
  delay(200);
}