updata TheOlfactoryChip_3.1.1

// DPS3005 MODBUS Example By Luke (www.ls-homeprojects.co.uk)

#include <ESP8266WiFi.h>

#include <ModbusMaster.h>

#include <SoftwareSerial.h>

#define SERIAL_RX     D5  // PIN Mapping for ESP8266 NODE MCU Only! pin for SoftwareSerial RX 

#define SERIAL_TX     D6  // PIN Mapping for ESP8266 NODE MCU Only! pin for SoftwareSerial TX

SoftwareSerial mySerial(SERIAL_RX, SERIAL_TX);

ModbusMaster node;    // instantiate ModbusMaster object

float voltage = 0.0;

float current = 0.0;

unsigned int cycle = 3;

unsigned int time_off = 500; // LED off time

unsigned int time_on = 1000; // LED on time

void setup()

{

  Serial.begin(9600);

  mySerial.begin(9600);     //start software serial connected to dps3005

  pinMode(SERIAL_RX, INPUT);

  pinMode(SERIAL_TX, OUTPUT);

  // communicate with Modbus slave ID 1 over Serial (port 0)

  node.begin(1, mySerial);

  //node.writeSingleRegister(0, 0x96); //set 1.5v

  node.writeSingleRegister(0, 0x1c2); //set 4.5v

  node.writeSingleRegister(1, 0x1F4); //set 500ma

}

void loop()

{

  node.writeSingleRegister(9, 1); //set power on !

  delay(time_off);

  node.writeSingleRegister(9, 0);

  delay(time_on);

}