How I can add a phsical switch in blynk app?
I do like this it is correct??
Please Hi dears
I have project
How to set Data and Time ? using Arduino uno , esp8266, LCD and RTC
Manually I can used by switch push button but I canât by Blynk app
I used this code I donât now where the mistake?
#define BLYNK_PRINT Serial
#include <ESP8266_Lib.h>
#include <BlynkSimpleShieldEsp8266.h>
//........................
#include <Wire.h>
#include <RTClib.h>
#include <LiquidCrystal_I2C.h>
//************************************//
LiquidCrystal_I2C lcd(0x3F,20,4);
RTC_DS1307 RTC;
//************Button*****************//
int P1=6; // Button SET MENU'
int P2=7; // Button +
int P3=8; // Button -
//int P1,P2,P3;
//************Variables**************//
int hourupg;
int minupg;
int yearupg;
int monthupg;
int dayupg;
int menu =0;
//.............................
char auth[] = "********************************************";
char ssid[] = "*********************";
char pass[] = "**************";
#include <SoftwareSerial.h>
SoftwareSerial EspSerial(2, 3); // TX, RX
// Your ESP8266 baud rate:
#define ESP8266_BAUD 9600
ESP8266 wifi(&EspSerial);
void setup()
{
Serial.begin(9600);
// Set ESP8266 baud rate
EspSerial.begin(ESP8266_BAUD);
delay(10);
Blynk.begin(auth, wifi, ssid, pass);
//..............................................
lcd.init();
lcd.backlight();
lcd.clear();
pinMode(P1,INPUT);
pinMode(P2,INPUT);
pinMode(P3,INPUT);
Serial.begin(9600);
Wire.begin();
RTC.begin();
if (! RTC.isrunning()) {
Serial.println("RTC is NOT running!");
// Set the date and time at compile time
RTC.adjust(DateTime(__DATE__, __TIME__));
}
int menu=0;
}
//....................................................
void loop()
{
//.......................................
// check if you press the SET button and increase the menu index
int SET = digitalRead(P1);
if (SET == LOW)
// if(digitalRead(P1))
{
menu=menu+1;
}
if (menu==0)
{
DisplayDateTime(); // void DisplayDateTime
}
if (menu==1)
{
DisplaySetHour();
}
if (menu==2)
{
DisplaySetMinute();
}
if (menu==3)
{
DisplaySetYear();
}
if (menu==4)
{
DisplaySetMonth();
}
if (menu==5)
{
DisplaySetDay();
}
if (menu==6)
{
StoreAgg();
delay(500);
menu=0;
}
delay(100);
}
void DisplayDateTime ()
{
// We show the current date and time
DateTime now = RTC.now();
lcd.setCursor(2, 1);
lcd.print("Hour: ");
if (now.hour()<=9)
{
lcd.print("0");
}
lcd.print(now.hour(), DEC);
hourupg=now.hour();
lcd.print(":");
if (now.minute()<=9)
{
lcd.print("0");
}
lcd.print(now.minute(), DEC);
minupg=now.minute();
lcd.print(":");
if (now.second()<=9)
{
lcd.print("0");
}
lcd.print(now.second(), DEC);
lcd.setCursor(2, 2);
lcd.print("Date: ");
if (now.day()<=9)
{
lcd.print("0");
}
lcd.print(now.day(), DEC);
dayupg=now.day();
lcd.print("/");
if (now.month()<=9)
{
lcd.print("0");
}
lcd.print(now.month(), DEC);
monthupg=now.month();
lcd.print("/");
lcd.print(now.year(), DEC);
yearupg=now.year();
}
void DisplaySetHour()
{
// time setting
lcd.clear();
DateTime now = RTC.now();
if(digitalRead(P2)==LOW)
{
if(hourupg==23)
{
hourupg=0;
}
else
{
hourupg=hourupg+1;
}
}
if(digitalRead(P3)==LOW)
{
if(hourupg==0)
{
hourupg=23;
}
else
{
hourupg=hourupg-1;
}
}
lcd.setCursor(0,0);
lcd.print("Set time:");
lcd.setCursor(0,1);
lcd.print(hourupg,DEC);
delay(200);
}
void DisplaySetMinute()
{
// Setting the minutes
lcd.clear();
if(digitalRead(P2)==LOW)
{
if (minupg==59)
{
minupg=0;
}
else
{
minupg=minupg+1;
}
}
if(digitalRead(P3)==LOW)
{
if (minupg==0)
{
minupg=59;
}
else
{
minupg=minupg-1;
}
}
lcd.setCursor(0,0);
lcd.print("Set Minutes:");
lcd.setCursor(0,1);
lcd.print(minupg,DEC);
delay(200);
}
void DisplaySetYear()
{
// setting the year
lcd.clear();
if(digitalRead(P2)==LOW)
{
yearupg=yearupg+1;
}
if(digitalRead(P3)==LOW)
{
yearupg=yearupg-1;
}
lcd.setCursor(0,0);
lcd.print("Set Year:");
lcd.setCursor(0,1);
lcd.print(yearupg,DEC);
delay(200);
}
void DisplaySetMonth()
{
// Setting the month
lcd.clear();
if(digitalRead(P2)==LOW)
{
if (monthupg==12)
{
monthupg=1;
}
else
{
monthupg=monthupg+1;
}
}
if(digitalRead(P3)==LOW)
{
if (monthupg==1)
{
monthupg=12;
}
else
{
monthupg=monthupg-1;
}
}
lcd.setCursor(0,0);
lcd.print("Set Month:");
lcd.setCursor(0,1);
lcd.print(monthupg,DEC);
delay(200);
}
void DisplaySetDay()
{
// Setting the day
lcd.clear();
if(digitalRead(P2)==LOW)
{
if (dayupg==31)
{
dayupg=1;
}
else
{
dayupg=dayupg+1;
}
}
if(digitalRead(P3)==LOW)
{
if (dayupg==1)
{
dayupg=31;
}
else
{
dayupg=dayupg-1;
}
}
lcd.setCursor(0,0);
lcd.print("Set Day:");
lcd.setCursor(0,1);
lcd.print(dayupg,DEC);
delay(200);
}
void StoreAgg()
{
// Variable saving
lcd.clear();
lcd.setCursor(4,1);
lcd.print("SAVING IN");
lcd.setCursor(4,2);
lcd.print("PROGRESS");
RTC.adjust(DateTime(yearupg,monthupg,dayupg,hourupg,minupg,0));
delay(200);
//...............................
Blynk.run();
}
Iâm waiting help please .
Nasty void loop()
Before you go any further down this concluded code path full of delay() and other Blynk issues⌠I recommend you clean up the loop and use proper Blynk timer methods, switch() case and possibly even Blynkâs Menu Widget for your âTime adjustmentâ options.
Possibly even the Segmented Switch Widget might be of use⌠no Documents yet, but fairly striaght forward - Segmented Switch how it works
PS, please keep same issue in existing topic⌠no need to create multiple ones.
Thanks dear but not clear
How I can make void loop clear
Try reading the documentation I linked above⌠the one with the big words âKeep your void loop() cleanâ 
#define BLYNK_PRINT Serial
#include <ESP8266_Lib.h>
#include <BlynkSimpleShieldEsp8266.h>
//........................
#include <Wire.h>
#include <RTClib.h>
#include <LiquidCrystal_I2C.h>
//************************************//
LiquidCrystal_I2C lcd(0x3F,20,4);
RTC_DS1307 RTC;
//************Button*****************//
int P1=6; // Button SET MENU'
int P2=7; // Button +
int P3=8; // Button -
//int P1,P2,P3;
//************Variables**************//
int hourupg;
int minupg;
int yearupg;
int monthupg;
int dayupg;
int menu =0;
//.............................
char auth[] = "***************************";
char ssid[] = "**************";
char pass[] = "*************";
#include <SoftwareSerial.h>
SoftwareSerial EspSerial(2, 3); // TX, RX
// Your ESP8266 baud rate:
#define ESP8266_BAUD 9600
ESP8266 wifi(&EspSerial);
BlynkTimer timer;
void Clock()
{
//.......................................
// check if you press the SET button and increase the menu index
int SET = digitalRead(P1);
if (SET == LOW)
// if(digitalRead(P1))
{
menu=menu+1;
}
if (menu==0)
{
DisplayDateTime(); // void DisplayDateTime
}
if (menu==1)
{
DisplaySetHour();
}
if (menu==2)
{
DisplaySetMinute();
}
if (menu==3)
{
DisplaySetYear();
}
if (menu==4)
{
DisplaySetMonth();
}
if (menu==5)
{
DisplaySetDay();
}
if (menu==6)
{
StoreAgg();
delay(500);
menu=0;
}
delay(100);
}
void DisplayDateTime ()
{
// We show the current date and time
DateTime now = RTC.now();
lcd.setCursor(2, 1);
lcd.print("Hour: ");
if (now.hour()<=9)
{
lcd.print("0");
}
lcd.print(now.hour(), DEC);
hourupg=now.hour();
lcd.print(":");
if (now.minute()<=9)
{
lcd.print("0");
}
lcd.print(now.minute(), DEC);
minupg=now.minute();
lcd.print(":");
if (now.second()<=9)
{
lcd.print("0");
}
lcd.print(now.second(), DEC);
lcd.setCursor(2, 2);
lcd.print("Date: ");
if (now.day()<=9)
{
lcd.print("0");
}
lcd.print(now.day(), DEC);
dayupg=now.day();
lcd.print("/");
if (now.month()<=9)
{
lcd.print("0");
}
lcd.print(now.month(), DEC);
monthupg=now.month();
lcd.print("/");
lcd.print(now.year(), DEC);
yearupg=now.year();
}
void DisplaySetHour()
{
// time setting
lcd.clear();
DateTime now = RTC.now();
if(digitalRead(P2)==LOW)
{
if(hourupg==23)
{
hourupg=0;
}
else
{
hourupg=hourupg+1;
}
}
if(digitalRead(P3)==LOW)
{
if(hourupg==0)
{
hourupg=23;
}
else
{
hourupg=hourupg-1;
}
}
lcd.setCursor(0,0);
lcd.print("Set time:");
lcd.setCursor(0,1);
lcd.print(hourupg,DEC);
delay(200);
}
void DisplaySetMinute()
{
// Setting the minutes
lcd.clear();
if(digitalRead(P2)==LOW)
{
if (minupg==59)
{
minupg=0;
}
else
{
minupg=minupg+1;
}
}
if(digitalRead(P3)==LOW)
{
if (minupg==0)
{
minupg=59;
}
else
{
minupg=minupg-1;
}
}
lcd.setCursor(0,0);
lcd.print("Set Minutes:");
lcd.setCursor(0,1);
lcd.print(minupg,DEC);
delay(200);
}
void DisplaySetYear()
{
// setting the year
lcd.clear();
if(digitalRead(P2)==LOW)
{
yearupg=yearupg+1;
}
if(digitalRead(P3)==LOW)
{
yearupg=yearupg-1;
}
lcd.setCursor(0,0);
lcd.print("Set Year:");
lcd.setCursor(0,1);
lcd.print(yearupg,DEC);
delay(200);
}
void DisplaySetMonth()
{
// Setting the month
lcd.clear();
if(digitalRead(P2)==LOW)
{
if (monthupg==12)
{
monthupg=1;
}
else
{
monthupg=monthupg+1;
}
}
if(digitalRead(P3)==LOW)
{
if (monthupg==1)
{
monthupg=12;
}
else
{
monthupg=monthupg-1;
}
}
lcd.setCursor(0,0);
lcd.print("Set Month:");
lcd.setCursor(0,1);
lcd.print(monthupg,DEC);
delay(200);
}
void DisplaySetDay()
{
// Setting the day
lcd.clear();
if(digitalRead(P2)==LOW)
{
if (dayupg==31)
{
dayupg=1;
}
else
{
dayupg=dayupg+1;
}
}
if(digitalRead(P3)==LOW)
{
if (dayupg==1)
{
dayupg=31;
}
else
{
dayupg=dayupg-1;
}
}
lcd.setCursor(0,0);
lcd.print("Set Day:");
lcd.setCursor(0,1);
lcd.print(dayupg,DEC);
delay(200);
}
void StoreAgg()
{
// Variable saving
lcd.clear();
lcd.setCursor(4,1);
lcd.print("SAVING IN");
lcd.setCursor(4,2);
lcd.print("PROGRESS");
RTC.adjust(DateTime(yearupg,monthupg,dayupg,hourupg,minupg,0));
delay(300);
}
void setup()
{
Serial.begin(9600);
EspSerial.begin(ESP8266_BAUD);
delay(10);
Blynk.begin(auth, wifi, ssid, pass);
//..............................................
lcd.init();
lcd.backlight();
lcd.clear();
pinMode(P1,INPUT_PULLUP);
pinMode(P2,INPUT_PULLUP);
pinMode(P3,INPUT_PULLUP);
Serial.begin(9600);
Wire.begin();
RTC.begin();
if (! RTC.isrunning()) {
Serial.println("RTC is NOT running!");
// Set the date and time at compile time
RTC.adjust(DateTime(__DATE__, __TIME__));
}
int menu=0;
timer.setInterval(1000L, Clock);
}
void loop()
{
Blynk.run();
timer.run();
}
still same problem
Iâm sorry just starting coding Iâm biggener programming.
I realise that youâre struggling with the programming side of things.
In the âolden daysâ (my era), programming would start with a sheet of paper and youâd draw a block diagram to show what you wanted to achieve and the steps you should follow.
Youâd then write your code on paper and do paper testing, noting the value of each variable and hope it changed. Youâd also write a test plan of how to check if the program gave the correct results.
Once you wore happy with the result youâd join the queue to use the computer terminal and key-in your code, save it and compile. If it compiled correctly youâd then run through your test plan.
Todayâs approach is to google some code examples and copy/paste them together with no concept of how each piece of code works, the ask on a online forum for help.
You havenât done the first stage of outlining the concept for your project and how it will work in practice from a user and code structure point of view. Until you do that, tweaking your code is a waste of time, because itâs trying to do things that arenât necessary, and is also missing things that are necessary.
So, I think you need to re-think your approach to this project and ask yourself a number of key questions before you go any furtherâŚ
Q - What is the primary purpose of the project?
A - To display the time on the clock. If it will be updated once every second then call the routine that does this once every second. Forget checking to see if the set time buttons are pressed, this is a secondary function (and probably unnecessary anyway).
Q - If I donât check the state of the set time buttons every second, how will I know that they are pressed?
A - You attach an interrupt to each button. When itâs pressed, a specified routine will be called.
Q - How do I know that a button widget has been pressed in the Blynk App?
A - The Blynk magic will do this for you! If you have a button attached to virtual pin V1, a function called BLYNK_WRITE(V1) will be triggered when the button is pressed or released. In effect, the same as a CHANGE interrupt on a physical button.
Q - Why am I manually setting the time, using physical/Blynk buttons when the Blynk RTC widget knows the time of the mobile device Iâm using, and this could be automatically passed across to the clock?
A - Because you havenât thought-out the concept of your project correctly.
Q - As the clock is connected to the internet, why arenât I automatically synchronising the time with a Network Time Protocol (NTP) service every so often?
A - Because you havenât thought-out the concept of your project correctly.
Q - If I synchronised the clock with Blynk or an NTP service, would I need the physical buttons?
A - No, unless the clock couldnât connect to the internet and the physical RTC module was showing the wrong time.
Q - If I use an NTP service, would the clock show the correct time for my time zone?
A - Yes. If you use a suitable time library which includes time zone features it will show the correct time for your region (including half hour offsets if necessary), and automatically correct for changes in daylight saving time.
So, itâs back to the drawing board in my opinion.
Pete.
Too True!!
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Fixing the void loop() wanât intended as a solution to your actual question⌠but a big recommendation toward proper Blynk programming process. It is good to see that you mastered that fairly quickly. 
As for the rest, I agree with @PeteKnight There is absolutely no sense in anyone trying to assist adding in Blynk controls with your current code. Work through his recommendations and by the time you map out some new methods, you might even realize some of the ways to make physical and virtual buttons to do the same thing.
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