#include <Wire.h>
#include "ClosedCube_HDC1080.h"
 
ClosedCube_HDC1080 hdc1080;

void TCA9548A(uint8_t bus)
{
  Wire.beginTransmission(0x70);  // TCA9548A address is 0x70
  Wire.write(1 << bus);          // send byte to select bus
  Wire.endTransmission();
}

void setup()
{
Serial.begin(9600);
Serial.println("ClosedCube HDC1080 Arduino Test");
 
// Default settings:
// - Heater off
// - 14 bit Temperature and Humidity Measurement Resolutions
TCA9548A(2);
hdc1080.begin(0x40);
TCA9548A(6);
hdc1080.begin(0x40);
 
Serial.print("Manufacturer ID=0x");
Serial.println(hdc1080.readManufacturerId(), HEX); // 0x5449 ID of Texas Instruments
Serial.print("Device ID=0x");
Serial.println(hdc1080.readDeviceId(), HEX); // 0x1050 ID of the device
 
printSerialNumber();
 
}

int sensor = 2;
void loop()
{
if(sensor == 6) sensor = 2; else sensor = 6;
TCA9548A(sensor);

Serial.print("Sensor ");
Serial.print(sensor);
Serial.print(", T=");
Serial.print(hdc1080.readTemperature());
Serial.print("C, RH=");
Serial.print(hdc1080.readHumidity());
Serial.print("%, ");
if(sensor==2) Serial.println("");
delay(2000);
}
 
void printSerialNumber() {
Serial.print("Device Serial Number=");
HDC1080_SerialNumber sernum = hdc1080.readSerialNumber();
char format[12];
sprintf(format, "%02X-%04X-%04X", sernum.serialFirst, sernum.serialMid, sernum.serialLast);
Serial.println(format);
}