#include <WiFi.h>
#include <HTTPClient.h>
#include <DHT.h>
// Ganti dengan SSID dan password WiFi Anda
const char* ssid = "Wokwi-GUEST";
const char* password = "";
// Ganti dengan token akses dari perangkat ThingsBoard Anda
const char* accessToken = "PCLY7xdDyIgUnPDuepXJ";
// URL ThingsBoard, biasanya dalam format: http://<THINGSBOARD_HOST>:<PORT>
const char* server = "http://thingsboard.cloud/api/v1/PCLY7xdDyIgUnPDuepXJ/telemetry";
// Pin data sensor DHT
#define DHTPIN 33
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
void setup() {
Serial.begin(115200);
dht.begin();
// Hubungkan ke WiFi
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}
Serial.println("Connected to WiFi");
}
void loop() {
if (WiFi.status() == WL_CONNECTED) {
HTTPClient http;
// Baca nilai dari sensor DHT11
float temperature = dht.readTemperature();
float humidity = dht.readHumidity();
if (isnan(temperature) || isnan(humidity)) {
Serial.println("Failed to read from DHT sensor!");
return;
}
// Tampilkan nilai suhu dan kelembaban di Serial Monitor
Serial.print("Temperature (raw): ");
Serial.print(temperature);
Serial.print(" °C, Humidity (raw): ");
Serial.print(humidity);
Serial.println(" %");
// Buat URL request
String url = server;
// Data telemetri dalam format JSON
String payload = "{\"temperature\": " + String(temperature, 2) + ", \"humidity\": " + String(humidity, 2) + "}";
// Debugging: tampilkan URL dan payload
Serial.print("Sending data to: ");
Serial.println(url);
Serial.print("Payload: ");
Serial.println(payload);
http.begin(url);
http.addHeader("Content-Type", "application/json");
// Kirim data telemetri ke ThingsBoard
int httpResponseCode = http.POST(payload);
if (httpResponseCode > 0) {
String response = http.getString();
Serial.println(httpResponseCode);
Serial.println(response);
} else {
Serial.print("Error on sending POST: ");
Serial.println(httpResponseCode);
}
http.end();
} else {
Serial.println("WiFi not connected");
}
// Tunggu 10 detik sebelum mengirim data lagi
delay(1000);
}