Post temperature from a OneWire and voltage from light sensor to the things network

Lorawan_Temp.ino

#include "TheThingsUno.h"
#include <OneWire.h>

// Set your AppEUI and AppKey
const byte appEui[8] = //for example: {0x70, 0xB3, 0xD5, 0x7E, 0xE0, 0xE0, 0x01, 0x4A1};
const byte appKey[16] = //for example: {0x73, 0x6D, 0x24, 0xD2, 0x69, 0xBE, 0xE3, 0xAE, 0x0E, 0xCE, 0xF0, 0xBB, 0x6C, 0xA4, 0xBA, 0xFE};

#define debugSerial Serial
#define loraSerial Serial1

#define debugPrintLn(...) { if (debugSerial) debugSerial.println(__VA_ARGS__); }
#define debugPrint(...) { if (debugSerial) debugSerial.print(__VA_ARGS__); }

TheThingsUno ttu;

//Onewire Stuff
OneWire  ds(2);  // on pin 10 (a 4.7K resistor is necessary)

int led = 7;

void setup()
{
  debugSerial.begin(115200);
  loraSerial.begin(57600);

  delay(1000);
  ttu.init(loraSerial, debugSerial);
  ttu.reset();
  ttu.join(appEui, appKey);

  delay(6000);
  ttu.showStatus();
  debugPrintLn("Setup for The Things Network complete");

  delay(1000);
}

void loop() {
    byte i;
  byte present = 0;
  byte type_s;
  byte data[12];
  byte addr[8];
  float celsius;
  
  if ( !ds.search(addr)) {
    //Serial.println("No more addresses.");
    //Serial.println();
    ds.reset_search();
    delay(250);
    return;
  }
  
  if (OneWire::crc8(addr, 7) != addr[7]) {
      Serial.println("CRC is not valid!");
      return;
  }
  Serial.println();
 
  // the first ROM byte indicates which chip
  switch (addr[0]) {
    case 0x10:
      Serial.println("  Chip = DS18S20");  // or old DS1820
      type_s = 1;
      break;
    case 0x28:
      //Serial.println("  Chip = DS18B20");
      type_s = 0;
      break;
    case 0x22:
      Serial.println("  Chip = DS1822");
      type_s = 0;
      break;
    default:
      Serial.println("Device is not a DS18x20 family device.");
      return;
  } 

  ds.reset();
  ds.select(addr);
  ds.write(0x44, 1);        // start conversion, with parasite power on at the end
  
  delay(1000);     // maybe 750ms is enough, maybe not
  // we might do a ds.depower() here, but the reset will take care of it.
  
  present = ds.reset();
  ds.select(addr);    
  ds.write(0xBE);         // Read Scratchpad


  for ( i = 0; i < 9; i++) {           // we need 9 bytes
    data[i] = ds.read();

  }

  // Convert the data to actual temperature
  // because the result is a 16 bit signed integer, it should
  // be stored to an "int16_t" type, which is always 16 bits
  // even when compiled on a 32 bit processor.
  int16_t raw = (data[1] << 8) | data[0];
  if (type_s) {
    raw = raw << 3; // 9 bit resolution default
    if (data[7] == 0x10) {
      // "count remain" gives full 12 bit resolution
      raw = (raw & 0xFFF0) + 12 - data[6];
    }
  } else {
    byte cfg = (data[4] & 0x60);
    // at lower res, the low bits are undefined, so let's zero them
    if (cfg == 0x00) raw = raw & ~7;  // 9 bit resolution, 93.75 ms
    else if (cfg == 0x20) raw = raw & ~3; // 10 bit res, 187.5 ms
    else if (cfg == 0x40) raw = raw & ~1; // 11 bit res, 375 ms
    //// default is 12 bit resolution, 750 ms conversion time
  }
  celsius = (float)raw / 16.0;
  debugPrintLn("Temperature:");
  debugPrintLn(celsius);
  debugPrintLn("\n");

  // Read a photodiode on A0
  int sensorValue = analogRead(A0);
  float voltage = sensorValue * (5.0 / 1023.0);
  //debugPrintLn("Light: " + String(voltage, DEC));
  debugPrintLn(voltage);
  //Todo: remove the conversion to float above and back to raw again, here.
  int data2 = (int)(celsius * 100); // 2150 
  byte buf[4];
  //Temperature
  buf[0] = data2 >> 8;
  buf[1] = data2 & 0xff;
  //Light voltage
  buf[2] = sensorValue >> 8;
  buf[3] = sensorValue & 0xff;
 
  ttu.sendBytes(buf, 4);
  //digitalWrite(led, HIGH);
 
  delay(20000);
  
  digitalWrite(led, LOW);
  
}