terminal screen isn't work

Need Help With My Project
1

why is The terminal screen sometimes displayed and sometimes not displayed?
This is a piece of code that contains a command to display on the terminal, but when this command is executed, sometimes the terminal is displayed, sometimes the terminal is not displayed. Please tell me how to fix it. Thank you for your support.

void hamCDdonhay(){
  if(CDdonhay==1){
    WidgetTerminal manhinhterminal(V33);
    donhay[id-1]=donhaytam;
    EEPROM.update(2020+id-1,donhaytam);
    Serial.println("do nhay dau vao "+ String(id)+" : " +String(donhaytam)+" giay");
    manhinhterminal.println("do nhay dau vao "+ String(id)+" : " +String(donhaytam)+" giay");
    manhinhterminal.flush();
    CDdonhay=0;
    CTDdonhay=0;
    CDid=0;
    delay(1000);
  }
}
2

@quocanhtran2701 Please edit your post, using the pencil icon at the bottom, and add triple backticks at the beginning and end of your code so that it displays correctly.
Triple backticks look like this:
```

Copy and paste these if you can’t find the correct symbol on your keyboard.

Pete.

3

I have edited the post. Thank you for your guidance.

4

It’s difficult to comment without knowing more about your code full, the hardware you are using, the version of the Blynk library you are using, the type of Blynk subscription you have, how often the hamCDdonhay() function is being called, what type of mobile OS is being used, along with the version number of your mobile app.

You are doing some rather odd things, like re-declaring the manhinhterminal object each time hamCDdonhay() is called.

Using delays:

Doing EEPROM writes each time hamCDdonhay() is called (EEPROPM memory has a life of around 100.000 write operations before it dies).

In addition, very few people use the WidgetTerminal approach. Instead, they use `Blynk.virtualWrite(Vpin, “value”);

Pete.

5

Currently I am using Blynk library version 1.3.2 by Volodymer Skymanskyy. The hardware is an Arduino Ethernet Shield. I signed up for the Blynk plus package on my iPhone X and installed the Blynk new 2.0 app
I have done many such projects before but no problem. This problem just appeared recently a few months ago.

The code above is a subfunction. it is not inside the loop function

Please tell me how to fix it. Thank you for your support.

Where can I put the full code so you can read it? I tried putting it in this response but it didn’t work because it was too long

quoc anh

6

Obviously!
That’s why I asked about how often it is called, which is something you have t answered.

A shield is just that - a shield which attaches to a board. The question is, what type of board are you attaching it to?

How many lines of code?
Are you are posting it correctly, with triple backticks?

Pete.

7

I am using arduino mega2560 and shield ethernet module.
I can’t edit the post because it’s been posted for too long.

The command lines is called upon WidgetButon action so i think its cycle is enough time to display. Can you tell me the time between these 2 command line calls?

yes I have placed the code in triple backticks.
My code has 1300 lines more than 32000 characters so it is limited
Below is the code that I have removed irrelevant lines so I can post it.

#define BLYNK_TEMPLATE_ID "TMPL65Ve1w7sj"
#define BLYNK_TEMPLATE_NAME "giam sat trung tam"
#define BLYNK_AUTH_TOKEN "3hg80WRz_VxgstG15_Vs7CC4O53oQKwa"

#define BLYNK_PRINT Serial
#include <Ethernet.h>
#include <avr/wdt.h>
#include <SPI.h>
#include <BlynkSimpleEthernet.h>
#include <WidgetRTC.h>
#include <EEPROM.h>
#include <DFRobotDFPlayerMini.h>
DFRobotDFPlayerMini myDFPlayer;
#include <TimerOne.h>
#include <TimerThree.h>
#include "DHT.h"            
const int DHTPIN = 49;       //Đọc dữ liệu từ DHT11 ở chân 2 trên mạch Arduino
const int DHTTYPE = DHT11;  //Khai báo loại cảm biến, có 2 loại là DHT11 và DHT22
DHT dht(DHTPIN, DHTTYPE);
#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C manhinh(0x27,20,4);
#include "RTClib.h"
RTC_DS1307 dongho;
void Gsm_Init();
void Gsm_MakeCall(String phone);
char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
char auth[] = BLYNK_AUTH_TOKEN;
void Gsm_MakeSMS(String phone,String content);
const String myphone = "0396447217";                                                  // Thay so cua ban vao day
String myphone2,myphone1;

//định nghĩa chân đầu vào ra
#define W5100_CS  10
#define SDCARD_CS 4

#define dauvao1        23
#define dauvao2        25
#define dauvao3        27
#define dauvao4        29
#define dauvao5        31
#define dauvao6        33
#define dauvao7        35
#define dauvao8        37
#define dauvao9        39
#define dauvao10       41
#define dauvao11       22
#define dauvao12       24
#define dauvao13       26
#define dauvao14       28
#define dauvao15       30
#define dauvao16       32
#define dauvao17       34
#define dauvao18       36
#define dauvao19       38
#define dauvao20       40
#define khoidonglai       42
#define phatxung          45
#define nhantinhieutreo   43
#define denmang           47

// khai báo vung nhớ
#define giokhoidong       3000  
#define phutkhoidong      3001
#define thoigiantamdung   3002
#define amluong           3003
#define onhietdoCB        3004
//ten dau vao từ 1 đến 300
//cau cảnh báo từ 301 đến 700
//lịch sử từ 701 đến 1050
//thoi gian canh bao từ 2000 den 2019
//độ nhạy từ 2020 den 2039
//file canh bao loa từ 2040 den 2059
//khai báo biến  
int al,tgtd,dn;
int giay,nhietdoCB,tamdungblynk,hienthilsblynk;
int id,cogoitam;
int filethongbaotam,thoigianCBtam,donhaytam;
unsigned long thoigian,moctggoidien,timedauvaoND,timedvphatxung;
String tendauvaotam,caucanhbaotam;
bool internet,trangthai;
float h,t;
bool cogoi,bitgoi;
bool CDid,CTDtendauvao,CTDcaucanhbao,CTDfilethongbao,CTDdonhay,CTDthoigianCB;
bool CDtendauvao,CDcaucanhbao,CDfilethongbao,CDdonhay,CDthoigianCB,CDnhanh;
const int sochan[20]={23,25,27,29,31,33,35,37,39,41,22,24,26,28,30,32,34,36,38,40};
unsigned long timedauvaoDN[15];
unsigned long timedauvaoCB[15];
bool cocanhbao[15];
byte sodienthoai[12];
String tendauvao[20];
String caucanhbao[20];
String tenled[20]={"ldv1","ldv2","ldv3","ldv4","ldv5","ldv6","ldv7","ldv8","ldv9","ldv10","ldv11","ldv12","ldv13","ldv14","ldv15","ldv16","ldv17","ldv18","ldv19","ldv20"};
byte thoigianCB[20];
byte donhay[20];
byte filethongbao[20];
//
//WidgetLCD hienthisdt(V25);
WidgetTerminal manhinhterminal(V33);
WidgetRTC rtc;
WidgetLED ldv1(V3);
WidgetLED ldv2(V4);
WidgetLED ldv3(V5);
WidgetLED ldv4(V6);
WidgetLED ldv5(V7);
WidgetLED ldv6(V8);
WidgetLED ldv7(V9);
WidgetLED ldv8(V10);
WidgetLED ldv9(V11);
WidgetLED ldv10(V12);
WidgetLED ldv11(V13);
WidgetLED ldv12(V14);
WidgetLED ldv13(V15);
WidgetLED ldv14(V16);
WidgetLED ldv15(V17);
WidgetLED ldv16(V18);
WidgetLED ldv17(V19);
WidgetLED ldv18(V20);
WidgetLED ldv19(V21);
WidgetLED ldv20(V22);

BLYNK_WRITE(V29)
{
  // nut restart
  digitalWrite(khoidonglai,HIGH);
}
BLYNK_WRITE(V28)
{
  //nut tam dung
  tamdungblynk=1;
}
BLYNK_WRITE(V47)
{
  //nut hien thi lich su
  hienthilsblynk=1;
}
BLYNK_WRITE(V50)
{
  //nut xoa terminal
  manhinhterminal.clear();
}
BLYNK_WRITE(V42)
{
  // nhap gio khoi dong
  EEPROM.write(giokhoidong,param.asInt()); // assigning incoming value from pin V1 to a variable
}
BLYNK_WRITE(V43)
{
  // nhập phút khởi động
  EEPROM.write(phutkhoidong,param.asInt()); // assigning incoming value from pin V1 to a variable
}

BLYNK_WRITE(V44)
{
  //nhập thời gian tạm dừng
  tgtd = param.asInt(); // assigning incoming value from pin V1 to a variable
  EEPROM.write(thoigiantamdung,tgtd);
}
BLYNK_WRITE(V45)
{
  // nhập am lương cảnh báo
  al = param.asInt(); // assigning incoming value from pin V1 to a variable
  EEPROM.write(amluong,al);
  myDFPlayer.volume(al);  //Set volume value. From 0 to 30
}
BLYNK_WRITE(V46)
{
  // nhap nhiet do canh bao
  nhietdoCB = param.asInt(); // assigning incoming value from pin V1 to a variable
  EEPROM.write(onhietdoCB,nhietdoCB);
}
// luu sdt..................//
//luu so dien thoai
BLYNK_WRITE(V23)
{
  WidgetLCD hienthisdt(V25);
  String sdt = param.asStr();
  sdt.getBytes(sodienthoai,11);
  int tam=2100;
  for(int i=0;i<11;i++){
    Serial.println(sodienthoai[i]-48);
    EEPROM.update(tam,sodienthoai[i]-48);
    tam=tam+1;
  }
  myphone1="";
  for(int i= 2100;i<2110;i++){
    myphone1 += String(EEPROM.read(i));
    delay(30);
  }
  Serial.println(myphone1);
  manhinhterminal.println("so dien thoai 1 da cai dat: "+myphone1);
  manhinhterminal.flush();
}
BLYNK_WRITE(V24)
{
  WidgetLCD hienthisdt(V25);
  String sdt = param.asStr();
  sdt.getBytes(sodienthoai,11);
  int tam=2110;
  for(int i=0;i<11;i++){
    Serial.println(sodienthoai[i]-48);
    EEPROM.update(tam,sodienthoai[i]-48);
    tam=tam+1;
  }
  myphone2="";
  for(int i = 2110;i<2120;i++){
    myphone2 += String(EEPROM.read(i));
    delay(30);
  }
  Serial.println(myphone2);
  manhinhterminal.println("so dien thoai 2 da cai dat: "+myphone2);
  manhinhterminal.flush();
}
// ket thuc luu sdt
BLYNK_WRITE(V26)// test gọi
{
  Gsm_MakeCall(myphone2);
}
BLYNK_WRITE(V27)// test nhắn tin
{
  Gsm_MakeSMS(myphone2,"he thong giam sat trung tam nha moi gui tin nhan test");
  delay(1000);
  
}
// ket thuc luu sdt
//...............
//luu ten dau vao
BLYNK_WRITE(V30) {
  switch (param.asInt())
  {
    case 0: // Item 1
      id = 1;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 1: // Item 1
      id = 2;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 2: // Item 1
      id = 3;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 3: // Item 1
      id = 4;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 4: // Item 1
      id = 5;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 5: // Item 1
      id = 6;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 6: // Item 1
      id = 7;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 7: // Item 1
      id = 8;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 8: // Item 1
      id = 9;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 9: // Item 1
      id = 10;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 10: // Item 1
      id = 11;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 11: // Item 1
      id = 12;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 12: // Item 1
      id = 13;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 13: // Item 1
      id = 14;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 14: // Item 1
      id = 15;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 15: // Item 1
      id = 16;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 16: // Item 1
      id = 17;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 17: // Item 1
      id = 18;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 18: // Item 1
      id = 19;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    case 19: // Item 1
      id = 20;
      CDid=1;
      Serial.println("da chon dau vao : "+String(id));
      break;
    default:
      Serial.println("Unknown item selected");
  }
}
BLYNK_WRITE(V31)
{
  // nhap tên đầu vao
  tendauvaotam = param.asStr();
  CTDtendauvao=1;
}
BLYNK_WRITE(V32)
{
  // nhập cau canh báo
  caucanhbaotam = param.asStr();
  CTDcaucanhbao=1;
}
BLYNK_WRITE(V36)
{
  // chinh file thong bao
  filethongbaotam=param.asInt();
  CTDfilethongbao=1;
  myDFPlayer.play(filethongbaotam);
}
BLYNK_WRITE(V35)
{
  //chỉnh thời gian canh báo
  thoigianCBtam = param.asInt();
  CTDthoigianCB=1;
}
BLYNK_WRITE(V34)
{
  //chinh do nhay
  donhaytam = param.asInt();
  CTDdonhay=1;
}
BLYNK_WRITE(V51)
{
  // nút cai dat nhanh
  if(CDid==1){
    if(CTDtendauvao==1){
      if(CTDcaucanhbao==1){
        if(CTDthoigianCB==1){
          if(CTDdonhay==1){
            if(CTDfilethongbao==1){
              CDnhanh=1;
            }else{
              manhinhterminal.clear();
              manhinhterminal.println("vui long nhap so file thong bao can cai dat");
              manhinhterminal.flush();
            }
          }else{
            manhinhterminal.clear();
            manhinhterminal.println("vui long nhap do nhay ngo vao can cai dat");
            manhinhterminal.flush();
          }
        }else{
          manhinhterminal.clear();
          manhinhterminal.println("vui long nhap thoi gian canh bao ngo vao can cai dat");
          manhinhterminal.flush();
        }
      }else{
        manhinhterminal.clear();
        manhinhterminal.println("vui long nhap cau canh bao ngo vao can cai dat");
        manhinhterminal.flush();
      }
    }else{
      manhinhterminal.clear();
      manhinhterminal.println("vui long nhap ten ngo vao can cai dat");
      manhinhterminal.flush();
    }
  }else{
    manhinhterminal.clear();
    manhinhterminal.println("vui long chon ngo vao can cai dat");
    manhinhterminal.flush();
  }
}
BLYNK_WRITE(V37)
{
  // nút cai dat ten dau vao
  if(CDid==1){
    if(CTDtendauvao==1){
      CDtendauvao=1;
    }else{
      manhinhterminal.clear();
      manhinhterminal.println("vui long nhap ten ngo vao can cai dat");
      manhinhterminal.flush();
    }
  }else{
    manhinhterminal.clear();
    manhinhterminal.println("vui long chon ngo vao can cai dat");
    manhinhterminal.flush();
  }
}
BLYNK_WRITE(V38)
{
  // nút cài dat cau canh bao
  if(CDid==1){
    if(CTDcaucanhbao==1){
      CDcaucanhbao=1;
    }else{
      manhinhterminal.clear();
      manhinhterminal.println("vui long nhap cau canh bao can cai dat");
      manhinhterminal.flush();
    }
  }else{
    manhinhterminal.clear();
    manhinhterminal.println("vui long chon ngo vao can cai dat");
    manhinhterminal.flush();
  }
}
BLYNK_WRITE(V40)
{
  // nút cài dat thoi gian canh bao
  
  if(CDid==1){
    if(CTDthoigianCB==1){
      CDthoigianCB=1;
    }else{
      manhinhterminal.clear();
      manhinhterminal.println("vui long nhap thoi gian canh bao can cai dat");
      manhinhterminal.flush();
    }
  }else{
    manhinhterminal.clear();
    manhinhterminal.println("vui long chon ngo vao can cai dat");
    manhinhterminal.flush();
  }
}
BLYNK_WRITE(V41)
{
  // nút cài dat độ nhạy
  
  if(CDid==1){
    if(CTDdonhay==1){
      CDdonhay=1;
    }else{
      manhinhterminal.clear();
      manhinhterminal.println("vui long nhap do nhay can cai dat");
      manhinhterminal.flush();
    }
  }else{
    manhinhterminal.clear();
    manhinhterminal.println("vui long chon ngo vao can cai dat");
    manhinhterminal.flush();
    
  }
}
BLYNK_WRITE(V39)
{
  // nút cài dat file thong bao
  
  if(CDid==1){
    if(CTDfilethongbao==1){
      CDfilethongbao=1;
    }else{
      manhinhterminal.clear();
      manhinhterminal.println("vui long nhap file thong bao can cai dat");
      manhinhterminal.flush();
    }
  }else{
    manhinhterminal.clear();
    manhinhterminal.println("vui long chon ngo vao can cai dat");
    manhinhterminal.flush();
  }
}
BLYNK_CONNECTED() {
  rtc.begin();
}

void setup()
{
  pinMode(khoidonglai,OUTPUT);
  pinMode(nhantinhieutreo,INPUT_PULLUP);
  pinMode(phatxung,OUTPUT);
  Serial.begin(9600);
  Serial1.begin(9600);
  Serial2.begin(9600);

  pinMode(dauvao1,INPUT_PULLUP);
  pinMode(dauvao2,INPUT_PULLUP);
  pinMode(dauvao3,INPUT_PULLUP);
  pinMode(dauvao4,INPUT_PULLUP);
  pinMode(dauvao5,INPUT_PULLUP);
  pinMode(dauvao6,INPUT_PULLUP);
  pinMode(dauvao7,INPUT_PULLUP);
  pinMode(dauvao8,INPUT_PULLUP);
  pinMode(dauvao9,INPUT_PULLUP);
  pinMode(dauvao10,INPUT_PULLUP);
  pinMode(dauvao11,INPUT_PULLUP);
  pinMode(dauvao12,INPUT_PULLUP);
  pinMode(dauvao13,INPUT_PULLUP);
  pinMode(dauvao14,INPUT_PULLUP);
  pinMode(dauvao15,INPUT_PULLUP);
  pinMode(dauvao16,INPUT_PULLUP);
  pinMode(dauvao17,INPUT_PULLUP);
  pinMode(dauvao18,INPUT_PULLUP);
  pinMode(dauvao19,INPUT_PULLUP);
  pinMode(dauvao20,INPUT_PULLUP);

  pinMode(denmang,OUTPUT);
  Timer1.initialize(1000000);
  Timer1.attachInterrupt(motgiay); // blinkLED to run every 1 seconds
  Timer1.stop();
  manhinh.begin();                      // initialize the lcd 
  manhinh.backlight();
  if (! dongho.begin()) {
    Serial.println("Couldn't find RTC");
    Serial.flush();
  }
  
  Gsm_Init();   
if (!myDFPlayer.begin(Serial2)) {                                                 //Use softwareSerial to communicate with mp3.
    Serial.println("Unable to begin:");
    Serial.println("1.Please recheck the connection!");
    Serial.println("2.Please insert the SD card!");
  }else{
    Serial.println("DFPlayer Mini online.");
  }
  
  myDFPlayer.volume(EEPROM.read(amluong));  //Set volume value. From 0 to 30 EEPROM.read(903)
  myDFPlayer.play(1);  //Play the first mp3
  dht.begin();         // Khởi động cảm biến
  //lấy thông số hệ thống
  tgtd=EEPROM.read(thoigiantamdung);
  nhietdoCB=EEPROM.read(onhietdoCB);
  giay=0;
  trangthai=0;
  cogoitam=0;
  cogoi=0;
  bitgoi=0;
  thoigian=0;
  moctggoidien=0;
  timedauvaoND=0;
  timedvphatxung=0;
  CDid=0;CTDtendauvao=0;CTDcaucanhbao=0;CTDfilethongbao=0;CTDdonhay=0;CTDthoigianCB=0;
  CDtendauvao=0;CDcaucanhbao=0;CDfilethongbao=0;CDdonhay=0;CDthoigianCB=0;
  for(int i=0;i<15;i++){
    timedauvaoDN[i]=0;
    timedauvaoCB[i]=0;
    cocanhbao[i]=0;
  }
  taomangten();
  taomangcauCB();
  taomangdonhay();
  taomangthoigianCB();
  taomangfilethongbao();
  for(int i= 2100;i<2110;i++){
    myphone1 += String(EEPROM.read(i));
    delay(30);
  }
  for(int i= 2110;i<2120;i++){
    myphone2 += String(EEPROM.read(i));
    delay(30);
  }
  Serial.println("sdt1 da cai dat: "+myphone1);
  Serial.println("sdt2 da cai dat: "+myphone2);
  //kết thuc lấy thông số hệ thống
  Blynk.begin(auth, "blynk.cloud", 80);
  for(int i=0;i<2;i++){
  Blynk.connect();
  if(Blynk.connected()==1){
    break;
  }
  }
  
  if(Blynk.connected()==1){
    internet=1;
  }
  else{
    internet=0;
  }
  //Gsm_MakeCall(myphone2);
  giay=0;
  //Blynk.logEvent("restart", "he thong canh bao trung tam da restart");
  
}

void loop()
{ 
  h = dht.readHumidity();
  t = dht.readTemperature();
  duytriketnoi();
  hienthiLCD();
  ham4khunggiokhoidong();
  hamtamdung();
  hamCDnhanh();
  hamCDtendauvao();
  hamCDcaucanhbao();
  hamCDfilethongbao();
  hamCDthoigianCB();
  hamCDdonhay();
  hienthilichsu();
  hienthiled();
  quytrinhcanhbao();
  chongtreo();
  Blynk.run();
}
void motgiay()
{
  giay=giay+1;
  Serial.println(giay);
}

void Gsm_Init()
{
  Serial1.println("AT");                            // Tat che do phan hoi (Echo mode)
  delay(2000);
  Serial1.println("AT+IPR=9600");              // Dat toc do truyen nhan du lieu 9600 bps
  delay(2000);
  Serial1.println("AT+CMGF=1");                // Chon che do TEXT Mode
  delay(2000);
  Serial1.println("AT+CLIP=1");                  // Hien thi thong tin nguoi goi den
  delay(2000);
  Serial1.println("AT+CNMI=2,2");              // Hien thi truc tiep noi dung tin nhan
  delay(2000);
}
 
void Gsm_MakeCall(String phone)           
{
  Serial1.println("ATD" + phone + ";");         // Goi dien 
  for(int i=0;i<20;i++){
    manhinh.clear();
    manhinh.setCursor(0,0);
    manhinh.print("dang goi khoi dong");
    delay(1000);
    Blynk.run();
  }
  Serial1.println("AT+CHUP");                              // Ngat cuoc goi
}

void Gsm_MakeSMS(String phone,String content){
  Serial1.println("AT+CMGS=\"" + phone + "\"");     // Lenh gui tin nhan
  delay(1000);
  Blynk.run();
  delay(1000);
  Blynk.run();
  delay(1000);
  Blynk.run();
  Serial1.print(content);                                          // Gui noi dung
  Serial1.print((char)26);                                         // Gui Ctrl+Z hay 26 de ket thuc noi dung tin nhan va gui tin di
  delay(1000);
  Blynk.run();
  delay(1000);
  Blynk.run();
  delay(1000);
  Blynk.run();
}

void hamtamdung() {
  if(tamdungblynk==1){
    Timer1.stop();
    giay=0;
    for(int i=0;i<15;i++){
    timedauvaoDN[i]=0;
    timedauvaoCB[i]=0;
    cocanhbao[i]=0;
    }
    for(int i=0;i<tgtd;i++){
      int tgtdcl=(tgtd-1)-i;
      Blynk.virtualWrite(V48, tgtdcl);
      for(int g=0;g<60;g++){
        Blynk.virtualWrite(V49, 60-g);
        hienthiLCDtamdung(tgtdcl,60-g);
        delay(1000);
        Blynk.run();
        chongtreo();
      }
    }
    tamdungblynk=0;
  }
}
void duytriketnoi() {
  if (Blynk.connected() == 1) {
    Blynk.run();
    digitalWrite(denmang,HIGH);
  }else{
    digitalWrite(denmang,LOW);
  }
  if (internet == 1) {
    if (Blynk.connected() == 0) {
      if (thoigian == 0) {
        thoigian = millis();
        //Serial.print("thoigian:");Serial.println(thoigian);
      }
      //Serial.println(millis()-thoigian);
      if (millis() - thoigian > 30000) {
        Blynk.begin(auth, "blynk.cloud", 80);
        Blynk.connect();
        thoigian = 0;
      }
    }
  }
}
void hienthiLCD() {
  DateTime now = dongho.now();
  static unsigned long timepoint = millis();
  if (millis() - timepoint > 1000U) {
    timepoint = millis();
    Blynk.virtualWrite(V0, now.hour());
    Blynk.virtualWrite(V1, now.minute());
    Blynk.virtualWrite(V2, now.second());
    manhinh.clear();
    manhinh.setCursor(0, 0);
    manhinh.print("HE THONG GIAM SAT TT");
    manhinh.setCursor(0, 1);
    manhinh.print("NHIET DO TU: " + String(t));
    manhinh.setCursor(0, 2);
    manhinh.print(now.hour());
    manhinh.print(":");
    manhinh.print(now.minute());
    manhinh.print(":");
    manhinh.print(now.second());
    manhinh.print(" ");
    if (Blynk.connected() == 1) {
      manhinh.print("ONL");
    } else {
      manhinh.print("OFF");
    }
    manhinh.print(" ");
    manhinh.print(giay);
  }
}
void hienthiLCDtamdung(int phuttd,int giaytd){
  manhinh.clear();
  manhinh.setCursor(0, 0);
  manhinh.print("HE THONG GIAM SAT TT");
  manhinh.setCursor(1, 1);
  manhinh.print("TAM DUNG CANH BAO");
  manhinh.setCursor(0, 3);
  manhinh.print("thoi gian TD  ");
  manhinh.print(phuttd);
  manhinh.print(":");
  manhinh.print(giaytd);
}
void hienthiCB(String chuoihienthi) {
  manhinh.setCursor(0, 3);
  manhinh.print(chuoihienthi);
    
}
void ham4khunggiokhoidong() {
  DateTime now = dongho.now();
  if (Blynk.connected() == 1) {
    if (minute() != now.minute()) {
      dongho.adjust(DateTime(year(), month(), day(), hour(), minute(), second()));
    }
  }
  if (Blynk.connected() == 0) {
    if (now.hour() == 8 && now.minute() == 1) {  //reset theo dong ho
      if (now.second() >= 1 && now.second() < 3) {
        digitalWrite(khoidonglai, HIGH);
        delay(500);
        digitalWrite(khoidonglai, LOW);
      }
    }
  }
  if (Blynk.connected() == 0) {
    if (now.hour() == 12 && now.minute() == 1) {  //reset theo dong ho
      if (now.second() >= 1 && now.second() < 3) {
        digitalWrite(khoidonglai, HIGH);
        delay(500);
        digitalWrite(khoidonglai, LOW);
      }
    }
  }
  if (Blynk.connected() == 0) {
    if (now.hour() == 22 && now.minute() == 1) {  //reset theo dong ho
      if (now.second() >= 1 && now.second() < 3) {
        digitalWrite(khoidonglai, HIGH);
        delay(500);
        digitalWrite(khoidonglai, LOW);
      }
    }
  }
  if (now.hour() == EEPROM.read(giokhoidong) && now.minute() == EEPROM.read(phutkhoidong)) {  //reset theo dong ho
    if (now.second() >= 1 && now.second() < 3) {
      digitalWrite(khoidonglai, HIGH);
      delay(500);
      digitalWrite(khoidonglai, LOW);
    }
  }
}
//hàm mới

void goidien(String sodienthoai){
  if(bitgoi==0){
    if(moctggoidien==0){
      Serial1.println("ATD" + sodienthoai + ";");         // Goi dien
      Serial.println("gui lenh goi"); 
      moctggoidien= millis();
      bitgoi=1; // bật cờ thực hiện cuộc gọi
    }
  }
}
void ngatcuocgoi(){
  if(bitgoi==1){
    if(moctggoidien!=0){
      if(millis()-moctggoidien>30000){
        Serial1.println("AT+CHUP");
        Serial.println("gui lenh ket thuc goi"); 
        bitgoi=0; //tắt cờ thực hiện cuộc gọi
        moctggoidien=0;
      }
    }
  }
}

void luuchuoi(String chuoi,int vitribatdauluu,int soluongbyte){
  int n = chuoi.length();
  Serial.println(n);
  byte bupfer1[n+1]={};
  chuoi.getBytes(bupfer1,n+1);
  for(int i=0;i<soluongbyte;i++){
    if(i<n){
      //Serial.print(char(tendauvao[i]));
      EEPROM.update(vitribatdauluu+i,bupfer1[i]);
      delay(20);
    }else{
      //Serial.println("255");
      EEPROM.update(vitribatdauluu+i,255);
      delay(20);
    }
  }
}
void luutendauvao(String chuoiten,int iddauvao1){
  // vung nhớ luu ten dau vao 1 đến 300
  int vitriluu = (15*iddauvao1)-14;
  luuchuoi(chuoiten,vitriluu,15);
}
void luucaucanhbao(String chuoicauCB,int iddauvao2){
  // vung nhớ luu ten dau vao 301 đến 700
  int vitriluu = (20*iddauvao2)-19+300;
  luuchuoi(chuoicauCB,vitriluu,20);
}
String noichuoi(int vitribatdaunoi,int soluongcannoi){
String chuoiketqua="";
for(int i=0;i<soluongcannoi;i++){
  byte tam = EEPROM.read(vitribatdaunoi+i);
  if(tam != 255){
    chuoiketqua+=char(tam);
    //Serial.print(chuoitendauvao);
  }else{
    break;
  } 
}
return(chuoiketqua);
}
String noichuoiten(int iddauvao3){
  String chuoiten;
  int vitridoc = (15*iddauvao3)-14;
  chuoiten = noichuoi(vitridoc,15);
  return(chuoiten);
}
String noichuoiCB(int iddauvao4){
  String chuoiCB;
  int vitridoc = (20*iddauvao4)-19+300;
  chuoiCB = noichuoi(vitridoc,20);
  return(chuoiCB);
}
void taomangten(){
  for(int i=0;i<20;i++){
    tendauvao[i]=noichuoiten(i+1);
    Serial.println("ten dau vao "+ String(i+1)+" : " +tendauvao[i]);
  }
}
void taomangcauCB(){
  for(int i=0;i<20;i++){
    caucanhbao[i]=noichuoiCB(i+1);
    Serial.println("cau CB dau vao "+ String(i+1)+" : " +caucanhbao[i]);
  }
}
void taomangdonhay(){
  for(int i=0;i<20;i++){
    donhay[i]=EEPROM.read(2020+i);
    Serial.println("do nhay dau vao "+ String(i+1)+" : " +String(donhay[i]));
  }
}
void taomangthoigianCB(){
  for(int i=0;i<20;i++){
    thoigianCB[i]=EEPROM.read(2000+i);
    Serial.println("thoi gian CB dau vao "+ String(i+1)+" : " +String(thoigianCB[i]));
  }
}
void taomangfilethongbao(){
  for(int i=0;i<20;i++){
    filethongbao[i]=EEPROM.read(2040+i);
    Serial.println("file thong bao dau vao "+ String(i+1)+" : " +String(filethongbao[i]));
  }
}

void luulichsu(int iddauvao){
  DateTime now = dongho.now();
  byte manglichsu[7] = {iddauvao,now.hour(),now.minute(),now.second(),now.day(),now.month(),now.year()-2000};
  for(int i=0;i<7;i++){
    Serial.println(manglichsu[i]);
  }
  for(int i=1;i<50;i++){
    for(int j=0;j<7;j++){
      byte tam=EEPROM.read(701+j+(i*7));
      EEPROM.update(701+j+((i-1)*7),tam);
      delay(30);
    }
  }
  for(int j=1044;j<1051;j++){
      EEPROM.update(j,manglichsu[j-1044]);
      delay(30);
  }
}
void hienthilichsu(){
  if(hienthilsblynk==1){
    String manglshienthi[7];
    int stt=0;
    for(int i=1044;i>700;i=i-7){
      stt=stt+1;
      if(i==1044){
        manhinhterminal.clear();
      }
      String lshienthi=tendauvao[EEPROM.read(i)-1]+"  ";
      for(int j=0;j<7;j++){
        manglshienthi[j]=String(EEPROM.read(i+j));
        if(j>0){
          lshienthi+=manglshienthi[j]+" ";
        }
      }
      manhinhterminal.println(String(stt)+". "+lshienthi);
      Serial.println(String(stt)+". "+lshienthi);
      manhinhterminal.flush();
      Blynk.run();
      chongtreo();
    }
    hienthilsblynk=0;
  }
}
void hamCDnhanh(){
  if(CDnhanh==1){
    WidgetTerminal manhinhterminal(V33);
    luutendauvao(tendauvaotam,id);
    tendauvao[id-1]=noichuoiten(id);
    Serial.println("ten dau vao "+ String(id)+" : " +tendauvao[id-1]);
    manhinhterminal.println("ten dau vao "+ String(id)+" : " +tendauvao[id-1]);
    manhinhterminal.flush();

    luucaucanhbao(caucanhbaotam,id);
    caucanhbao[id-1]=noichuoiCB(id);
    Serial.println("cau CB dau vao "+ String(id)+" : " +caucanhbao[id-1]);
    manhinhterminal.println("cau CB dau vao "+ String(id)+" : " +caucanhbao[id-1]);
    manhinhterminal.flush();

    filethongbao[id-1]=filethongbaotam;
    EEPROM.update(2040+id-1,filethongbaotam);
    Serial.println("file thong bao dau vao "+ String(id)+" : " +String(filethongbaotam));
    manhinhterminal.println("file thong bao dau vao "+ String(id)+" : " +String(filethongbaotam));
    manhinhterminal.flush();

    thoigianCB[id-1]=thoigianCBtam;
    EEPROM.update(2000+id-1,thoigianCBtam);
    Serial.println("thoi gian canh bao dau vao "+ String(id)+" : " +String(thoigianCBtam)+" giay");
    manhinhterminal.println("thoi gian canh bao dau vao "+ String(id)+" : " +String(thoigianCBtam)+" giay");
    manhinhterminal.flush();

    donhay[id-1]=donhaytam;
    EEPROM.update(2020+id-1,donhaytam);
    Serial.println("do nhay dau vao "+ String(id)+" : " +String(donhaytam)+" giay");
    manhinhterminal.println("do nhay dau vao "+ String(id)+" : " +String(donhaytam)+" giay");
    manhinhterminal.flush();
    CDnhanh=0;
    CTDtendauvao=0;
    CTDcaucanhbao=0;
    CTDfilethongbao=0;
    CTDthoigianCB=0;
    CTDdonhay=0;
    CDid=0;
    delay(1000);
  }
}
void hamCDtendauvao(){
  if(CDtendauvao==1){
    WidgetTerminal manhinhterminal(V33);
    luutendauvao(tendauvaotam,id);
    tendauvao[id-1]=noichuoiten(id);
    Serial.println("ten dau vao "+ String(id)+" : " +tendauvao[id-1]);
    manhinhterminal.println("ten dau vao "+ String(id)+" : " +tendauvao[id-1]);
    manhinhterminal.flush();
    CDtendauvao=0;
    CTDtendauvao=0;
    CDid=0;
    delay(1000);
  }
}
void hamCDcaucanhbao(){
  if(CDcaucanhbao==1){
    WidgetTerminal manhinhterminal(V33);
    luucaucanhbao(caucanhbaotam,id);
    caucanhbao[id-1]=noichuoiCB(id);
    Serial.println("cau CB dau vao "+ String(id)+" : " +caucanhbao[id-1]);
    manhinhterminal.println("cau CB dau vao "+ String(id)+" : " +caucanhbao[id-1]);
    manhinhterminal.flush();
    CDcaucanhbao=0;
    CTDcaucanhbao=0;
    CDid=0;
    delay(1000);
  }
}
void hamCDfilethongbao(){
  if(CDfilethongbao==1){
    WidgetTerminal manhinhterminal(V33);
    filethongbao[id-1]=filethongbaotam;
    EEPROM.update(2040+id-1,filethongbaotam);
    Serial.println("file thong bao dau vao "+ String(id)+" : " +String(filethongbaotam));
    manhinhterminal.println("file thong bao dau vao "+ String(id)+" : " +String(filethongbaotam));
    manhinhterminal.flush();
    CDfilethongbao=0;
    CTDfilethongbao=0;
    CDid=0;
    delay(1000);
  }
}
void hamCDthoigianCB(){
  if(CDthoigianCB==1){
    WidgetTerminal manhinhterminal(V33);
    thoigianCB[id-1]=thoigianCBtam;
    EEPROM.update(2000+id-1,thoigianCBtam);
    Serial.println("thoi gian canh bao dau vao "+ String(id)+" : " +String(thoigianCBtam)+" giay");
    manhinhterminal.println("thoi gian canh bao dau vao "+ String(id)+" : " +String(thoigianCBtam)+" giay");
    manhinhterminal.flush();
    CDthoigianCB=0;
    CTDthoigianCB=0;
    CDid=0;
    delay(1000);
  }
}
void hamCDdonhay(){
  if(CDdonhay==1){
    WidgetTerminal manhinhterminal(V33);
    donhay[id-1]=donhaytam;
    EEPROM.update(2020+id-1,donhaytam);
    Serial.println("do nhay dau vao "+ String(id)+" : " +String(donhaytam)+" giay");
    manhinhterminal.println("do nhay dau vao "+ String(id)+" : " +String(donhaytam)+" giay");
    manhinhterminal.flush();
    CDdonhay=0;
    CTDdonhay=0;
    CDid=0;
    delay(1000);
  }
}
8

Wow! What a mess!

I’d start by reading this…

Pete.

1 Like
9

I tried using the code for the terminal on examples.blynk.cc. but the terminal screen still doesn’t display fully.

z6386209801159_d9d42f9ee5f57a492045a7d7f6ae50d0
z6386209801159_d9d42f9ee5f57a492045a7d7f6ae50d01125×2436 169 KB

#define BLYNK_TEMPLATE_ID "TMPL65Ve1w7sj"
#define BLYNK_TEMPLATE_NAME "giam sat trung tam"
#define BLYNK_AUTH_TOKEN "3hg80WRz_VxgstG15_Vs7CC4O53oQKwa"

/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial


#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>

#define W5100_CS  10
#define SDCARD_CS 4

// Attach virtual serial terminal to Virtual Pin V1
WidgetTerminal terminal(V33);

// You can send commands from Terminal to your hardware. Just use
// the same Virtual Pin as your Terminal Widget
BLYNK_WRITE(V33)
{

  // if you type "Marco" into Terminal Widget - it will respond: "Polo:"
  if (String("Marco") == param.asStr()) {
    terminal.println("You said: 'Marco'") ;
    terminal.println("I said: 'Polo'") ;
  } else {

    // Send it back
    terminal.print("You said:");
    terminal.write(param.getBuffer(), param.getLength());
    terminal.println();
  }

  // Ensure everything is sent
  terminal.flush();
}

void setup()
{
  // Debug console
  Serial.begin(115200);

  pinMode(SDCARD_CS, OUTPUT);
  digitalWrite(SDCARD_CS, HIGH); // Deselect the SD card

  Blynk.begin(BLYNK_AUTH_TOKEN);
  // You can also specify server:
  //Blynk.begin(BLYNK_AUTH_TOKEN, "blynk.cloud", 80);
  //Blynk.begin(BLYNK_AUTH_TOKEN, IPAddress(192,168,1,100), 8080);

  // Clear the terminal content
  terminal.clear();

  // This will print Blynk Software version to the Terminal Widget when
  // your hardware gets connected to Blynk Server
  terminal.println(F("Blynk v" BLYNK_VERSION ": Device started"));
  terminal.println(F("-------------"));
  terminal.println(F("Type 'Marco' and get a reply, or type"));
  terminal.println(F("anything else and get it printed back."));
  terminal.flush();
}

void loop()
{
  Blynk.run();
}

quốc anh.

10

I’d suggest that you create a new template, with one datastream, then create a device from that template and add a terminal widget attached to that datastream, then re-test.

Pete.

11

Sir! it’s not that i just use terminal now, i used it a lot before and this phenomenon didn’t happen. it seems like blynk has updated something recently so all the projects i did have it. and now i tried using sample code from blynk still got this error as you can see in the attached image. can you give me another solution?

Quốc Anh

12

You obviously have a very complex mobile dashboard, and it’s impossible to tell what other things you done that may be producing the results you are seeing.
Without creating a clean template/device/dashboard setup for testing, it is impossible to tell what else may be interfering with your template.

That’s why I suggested that you try a test where you eliminate other variables from the equation. If you don’t want to do that then no problem, you can do your own research into what may be causing the issue.

Pete.

13

Hi Pete
Today i tried as you suggested, and the result is still the same. There are still cases where the Terminal responds and cases where the Terminal doesn’t respond. can you help me.

h4
h41125×2436 119 KB

/*************************************************************
  This example shows how to use Arduino Ethernet shield (W5100)
  to connect your project to Blynk.

  NOTE: Pins 10, 11, 12 and 13 are reserved for Ethernet module.
        DON'T use them in your sketch directly!

  WARNING: If you have an SD card, you may need to disable it
        by setting pin 4 to HIGH. Read more here:
        https://www.arduino.cc/en/Main/ArduinoEthernetShield

  You can send/receive any data using WidgetTerminal object.

  App dashboard setup:
    Terminal widget attached to Virtual Pin V1
 *************************************************************/

/* Fill-in information from Blynk Device Info here */
#define BLYNK_TEMPLATE_ID "TMPL60CLztWrB"
#define BLYNK_TEMPLATE_NAME "test terminal"
#define BLYNK_AUTH_TOKEN            "_j_9LsyDeABhIxL7g0su-8PqMlu5LW-9"

/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial


#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>

#define W5100_CS  10
#define SDCARD_CS 4

// Attach virtual serial terminal to Virtual Pin V1
WidgetTerminal terminal(V0);

// You can send commands from Terminal to your hardware. Just use
// the same Virtual Pin as your Terminal Widget
BLYNK_WRITE(V0)
{

  // if you type "Marco" into Terminal Widget - it will respond: "Polo:"
  if (String("Marco") == param.asStr()) {
    terminal.println("You said: 'Marco'") ;
    terminal.println("I said: 'Polo'") ;
  } else {

    // Send it back
    terminal.print("You said:");
    terminal.write(param.getBuffer(), param.getLength());
    terminal.println();
  }

  // Ensure everything is sent
  terminal.flush();
}

void setup()
{
  // Debug console
  Serial.begin(115200);

  pinMode(SDCARD_CS, OUTPUT);
  digitalWrite(SDCARD_CS, HIGH); // Deselect the SD card

  Blynk.begin(BLYNK_AUTH_TOKEN);
  // You can also specify server:
  //Blynk.begin(BLYNK_AUTH_TOKEN, "blynk.cloud", 80);
  //Blynk.begin(BLYNK_AUTH_TOKEN, IPAddress(192,168,1,100), 8080);

  // Clear the terminal content
  terminal.clear();

  // This will print Blynk Software version to the Terminal Widget when
  // your hardware gets connected to Blynk Server
  terminal.println(F("Blynk v" BLYNK_VERSION ": Device started"));
  terminal.println(F("-------------"));
  terminal.println(F("Type 'Marco' and get a reply, or type"));
  terminal.println(F("anything else and get it printed back."));
  terminal.flush();
}

void loop()
{
  Blynk.run();
}

Quoc anh