#include <WiFi.h>
#include <WiFiClient.h>
#include <Ultrasonic.h>
#include "ThingSpeak.h"

///########### configuração do wifi

#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASSWORD ""

#define WIFI_CHANNEL 6
int status = WL_IDLE_STATUS;     // the Wifi radio's status
WiFiClient client;

// Configuração do thingspeak

const int  myChannelNumber = 2334735;
const char* myApiKey = "GDZLKK6V93J91Z5K";
const char* server = "api.thingspeak.com";

#define BUTTON_PIN 4
// Ultrassonic
#define ECHO_PIN 19
#define TRIG_PIN 18

void setup() {
  Serial.begin(115200);
  pinMode(BUTTON_PIN, INPUT_PULLUP);
  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);

}

int lastState = HIGH;

float readDistanceCM() {
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);
  int duration = pulseIn(ECHO_PIN, HIGH);
  return duration * 0.034 / 2;
}

void loop() {
  int value = digitalRead((BUTTON_PIN));
  if (lastState != value) {
    lastState = value;
    if (value == HIGH) {
      Serial.println(" released");
    }
    if (value == LOW) {
      Serial.println(" pressed");
    }
  }
}