Codigo para tornozeleira eletronica usando M5Stick C como tornozeleira e qualquer dispositivo esp32 como server

tornozeleira_client.c

#include <WiFi.h>
#include <M5StickC.h>
#include <Arduino.h>

#define WIFI_SSID "Tornozeleira"
#define WIFI_PASS "DontHackMeB0y"
#define BUZZER_PIN 26

bool isConnected = false;
unsigned long lastBlink = 0;
bool ledState = false;
unsigned long lastReconnectAttempt = 0;

void beepAlert() {
  tone(BUZZER_PIN, 2000, 500);
  delay(500);
  noTone(BUZZER_PIN);
}

void connectToWiFi() {
  Serial.println("Tentando conectar ao Wi-Fi...");
  WiFi.begin(WIFI_SSID, WIFI_PASS);
  int retries = 0;

  while (WiFi.status() != WL_CONNECTED && retries < 3) {
    delay(500);
    Serial.print(".");
    retries++;
  }

  if (WiFi.status() == WL_CONNECTED) {
    Serial.println("\nConectado com sucesso!");
    Serial.print("IP: ");
    Serial.println(WiFi.localIP());
  } else {
    Serial.println("\nFalha na conexão.");
  }
}

void setup() {
  M5.begin();
  Serial.begin(115200);
  delay(1000);
  
  pinMode(BUZZER_PIN, OUTPUT);
  digitalWrite(BUZZER_PIN, LOW);
  
  M5.Lcd.setRotation(3);
  M5.Lcd.fillScreen(BLACK);
  M5.Lcd.setTextSize(1);
  
  WiFi.mode(WIFI_STA);
  WiFi.setSleep(false);  // Desativa sleep mode para melhor estabilidade
  connectToWiFi();
}

void loop() {
  if (WiFi.status() != WL_CONNECTED) {
    if (isConnected) {
      Serial.println(">>> Wi-Fi desconectado!");
      isConnected = false;
    }

    unsigned long now = millis();
    if (now - lastBlink > 500) {
      lastBlink = now;
      ledState = !ledState;
      
      M5.Lcd.fillScreen(ledState ? RED : BLACK);
      M5.Lcd.setCursor(10, 10);
      M5.Lcd.println("SEM CONEXAO!");
      
      beepAlert();
    }

    if (millis() - lastReconnectAttempt > 5000) {
      lastReconnectAttempt = millis();
      connectToWiFi();
    }

  } else {
    if (!isConnected) {
      Serial.println(">>> Reconectado ao Wi-Fi!");
      isConnected = true;
      M5.Lcd.fillScreen(BLACK);

      for (int i = 0; i < 3; i++) {
        M5.Lcd.fillScreen(GREEN);
        beepAlert();
        delay(300);
        M5.Lcd.fillScreen(BLACK);
        delay(300);
      }
    }
    
    M5.Lcd.setCursor(5, 5);
    M5.Lcd.println("Conectado!");
    M5.Lcd.setCursor(5, 20);
    M5.Lcd.print("IP: ");
    M5.Lcd.println(WiFi.localIP());
    
    delay(500);
  }
}

tornozeleira_server.c

#include <WiFi.h>

void setup() {
  WiFi.mode(WIFI_AP);
  WiFi.softAP("Tornozeleira", "DontHackMeB0y");
  Serial.begin(115200);
  Serial.println("Rede criada: Tornozeleira");
}

void loop() {
}