MCP3425(ADC)+ LM60BIZ + esp8266, driver

esp8266_mcp3425_v2.ino

/*
 esp8266_mcp3425_v2.ino
 MCP3425(ADC)+ LM60BIZ + esp8266
*/
#include <ESP8266WiFi.h>
#include<Wire.h>
extern "C" {
#include <user_interface.h>
}

// MCP3425 I2C address is 0x68(104)
#define Addr 0x68

const char* ssid = "";
const char* password = "";
const char* host = "api.thingspeak.com";
String mAPI_KEY="your-KEY";

static uint32_t mTimerTmp;
static uint32_t mTimerPost;
float mTemp=0;
float mHum=0;

//
void proc_http(String sTemp ){
      WiFiClient client;
      const int httpPort = 80;
      if (!client.connect(host, httpPort)) {
        Serial.println("connection failed");
        return;
      }
      String url = "/update?key="+ mAPI_KEY + "&field1="+ sTemp;                
      client.print(String("GET ") + url + " HTTP/1.1\r\n" +
        "Host: " + host + "\r\n" + 
        "Connection: close\r\n\r\n");
      delay(10);      
      int iSt=0;
      while(client.available()){
          String line = client.readStringUntil('\r');
Serial.print(line);
      }    
}

//
void setup() 
{
  Wire.begin();
  Serial.begin(9600);
  Serial.println("#Start-setup");
  // Start I2C Transmission
  Wire.beginTransmission(Addr);
  Wire.write(0x10);
  Wire.endTransmission();
  delay(300);

  //WIFI
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");  
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.print("millis.Connected: ");
  Serial.println(millis() );
}

//
int get_tempValue(){
  int iRet=0;
  unsigned int data[2];
  
  Wire.beginTransmission(Addr);
  Wire.write(0x00);
  Wire.endTransmission();
  //
  Wire.requestFrom(Addr, 2);
  if(Wire.available() == 2)
  {
    data[0] = Wire.read();
    data[1] = Wire.read();
  }
  // Convert the data to 12-bits
  int raw_adc = (data[0] & 0x0F) * 256 + data[1];
  if(raw_adc > 2047)
  {
    raw_adc -= 4096;
  }  
  Serial.print("Digital Value of Analog Input : ");
  Serial.println(raw_adc);
    //Sensor
  int iTemp = (raw_adc - 424) / 6.25; //電圧値を温度に変換, offset=425
Serial.print( "iTemp=" );
Serial.println( iTemp );
  iRet= iTemp;

  return iRet;
}
//
void loop()
{
    int iTemp =0;
    if( millis() > mTimerTmp){
        mTimerTmp += 5000;
        iTemp =get_tempValue();        
    }
  if (millis() > mTimerPost ){
   //mTimerPost +=  3000;
     mTimerPost += 60000;
     iTemp =get_tempValue();
     delay(1000);
     proc_http( String(iTemp) );
  }
}