Sensor HTU21D Temperatur & Kelembaban

Referensi:

• Adafruit HTU21D-F Temperature & Humidity Sensor Breakout Board

Contoh Program untuk ESP32

// library: https://github.com/adafruit/Adafruit_HTU21DF_Library
#define I2C_SDA 15
#define I2C_SCL 13

#include <Wire.h>
#include "Adafruit_HTU21DF.h"

// Connect Vin to 3-5VDC
// Connect GND to ground
// Connect SCL to I2C clock pin (13)
// Connect SDA to I2C data pin (15)

Adafruit_HTU21DF htu = Adafruit_HTU21DF();

void setup() {
  Serial.begin(115200);
  Serial.println("HTU21D-F test");
  Wire.begin(I2C_SDA, I2C_SCL);
  if (!htu.begin()) {
    Serial.println("Couldn't find sensor!");
    while (1);
  }
}

void loop() {
  float temp = htu.readTemperature();
  float rel_hum = htu.readHumidity();
  Serial.print("Temp: "); Serial.print(temp); Serial.print(" C");
  Serial.print("\t\t");
  Serial.print("Humidity: "); Serial.print(rel_hum); Serial.println(" \%");
  delay(500);
}