void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(16, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(16, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);                       // wait for a second
  digitalWrite(16, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);                       // wait for a second
}

/***************************************************************************
  This is a library for the BMP280 humidity, temperature & pressure sensor

  Designed specifically to work with the Adafruit BMEP280 Breakout 
  ----> http://www.adafruit.com/products/2651

  These sensors use I2C or SPI to communicate, 2 or 4 pins are required 
  to interface.

  Adafruit invests time and resources providing this open source code,
  please support Adafruit andopen-source hardware by purchasing products
  from Adafruit!

  Written by Limor Fried & Kevin Townsend for Adafruit Industries.  
  BSD license, all text above must be included in any redistribution
 ***************************************************************************/

#include <Wire.h>
#include <SPI.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BMP280.h>

#define BMP_SCK 13
#define BMP_MISO 12
#define BMP_MOSI 11 
#define BMP_CS 10

Adafruit_BMP280 bme; // I2C
//Adafruit_BMP280 bme(BMP_CS); // hardware SPI
//Adafruit_BMP280 bme(BMP_CS, BMP_MOSI, BMP_MISO,  BMP_SCK);

void setup() {
  Serial.begin(9600);
  Serial.println(F("BMP280 test"));
  
  if (!bme.begin()) {  
    Serial.println(F("Could not find a valid BMP280 sensor, check wiring!"));
    while (1);
  }
}

void loop() {
    Serial.print(F("Temperature = "));
    Serial.print(bme.readTemperature());
    Serial.println(" *C");
    
    Serial.print(F("Pressure = "));
    Serial.print(bme.readPressure());
    Serial.println(" Pa");

    Serial.print(F("Approx altitude = "));
    Serial.print(bme.readAltitude(1013.25)); // this should be adjusted to your local forcase
    Serial.println(" m");
    
    Serial.println();
    delay(2000);
}

　　プログラムです。
//ESP-WROOM-02でアナログ入力をするために必要
extern "C" {
#include "user_interface.h"
}
 
void setup() {
 Serial.begin(9600); //シリアル通信速度をR8C/M12A表示に合わせた。
 pinMode(13, OUTPUT);
}
 
//TOUTピンからの入力値を取得
int getToutValue(){
 int res = system_adc_read(); //ここでTOUTの値を取得
 return res; 
}
 
void loop() {
 int val= getToutValue();
 delay(50);                               //LCDドライブの処理時間待
 Serial.print("1,01,value:");
 if(val<1000){Serial.print(" ");}
 if(val<100){Serial.print(" ");}
 Serial.print(val);
 Serial.println("              ");
 delay(50);                              //LCDドライブの処理時間待
 Serial.println("2,01,                ");　//２行目は空白にする

 //delay(1000); 

 if(val > 580){
 digitalWrite(13, HIGH);
 delay(500); 
 }
 else{
 digitalWrite(13, LOW); 
 delay(500); 
 }
}
}