Migrating to new app? Code updates

[Cookins]

#define BLYNK_TEMPLATE_ID "JHBKBFDS"
#define BLYNK_DEVICE_NAME "KJBSDKFJBSDF"

#define BLYNK_FIRMWARE_VERSION        "0.1.0"

#define BLYNK_PRINT Serial
//#define BLYNK_DEBUG
#define APP_DEBUG

#include "BlynkEdgent.h"
#include <DHT.h>
#include <SPI.h>

#define DHTPIN 1
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);
BlynkTimer timer;

BLYNK_CONNECTED() {
   Blynk.syncAll(); }

void sendSensor()
{
  float h = dht.readHumidity();
  float t = dht.readTemperature(); // or dht.readTemperature(true) for Fahrenheit

  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
  // You can send any value at any time.
  // Please don't send more that 10 values per second.
  Blynk.virtualWrite(V1, h);  //V1 is for Humidity
  Blynk.virtualWrite(V2, t);  //V2 is for Temperature
}

void setup()
{
  Serial.begin(115200);
  delay(100);

  ​ BlynkEdgent.​begin​();
   dht.begin();
   timer.setInterval(10000L, sendSensor);
}

void loop() {
  BlynkEdgent.​run​();
  timer.run();
}

and another error now:

C:\Users\*****\Documents\Arduino\Blynk_Edgent_ESP8266_3dp_new\Blynk_Edgent_ESP8266_3dp_new.ino: In function 'void setup()':
Blynk_Edgent_ESP8266_3dp_new:45:3: error: '​' was not declared in this scope
   45 |   ​ BlynkEdgent.​begin​();
      |    
C:\Users\******\Documents\Arduino\Blynk_Edgent_ESP8266_3dp_new\Blynk_Edgent_ESP8266_3dp_new.ino: In function 'void loop()':
Blynk_Edgent_ESP8266_3dp_new:51:15: error: 'class Edgent' has no member named '​run​'
   51 |   BlynkEdgent.​run​();
      |               ^~~
exit status 1
'​' was not declared in this scope

[daveblynk]

How many tabs are visible in your arduino IDE before you upload the code. My guess is that the edgent tab is missing.

[Cookins]

[PeteKnight]

Take a brand new Edgent template and add-in just your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME then compile the sketch.

Pete.

[Cookins]

that worked.
guess, i can change firmware by OTA?

[PeteKnight]

You could, if you wish, but the important part is that you don’t break your working setup when adding-in your additional code.

Pete.

[Cookins]

i need to add DHT temperature sensor. Is there already included SPI in this firmware? also, if that possible to define pins for DHT sensor from web interface, or i need to do that in sketch?

[PeteKnight]

@Cookins

Is there already included SPI in this firmware?

No, but you’d know that if you searched the sketch.

@Cookins

possible to define pins for DHT sensor from web interface

No.

@Cookins

i need to do that in sketch?

Yes, in exactly the same way as before.

Pete.

[Cookins]

thanks all for help. but still got couple questions. sorry
seems, device remember last state before it powered down… while at this offline time - switch state changed. so when it back online - it got prev state of switch. how to do all switches sync, when device is going powered? BLYNK_CONNECTED() { Blynk.syncAll(); } not helped me at all… there no option, for switches, to sync - in web dashboard editor…

[PeteKnight]

@PeteKnight

Blynk.syncAll() only works for the datastreams you create where you turn on the "Sync with latest server value every time device connects to the cloud` in the datastream’s Advanced options.

Pete.

[Cookins]

Yes, you told me that already. But there no such option for switches. Only for digit values, in my case. Switches either in datastream tab… I need so switches sync too. There was, such option, in old code…

[PeteKnight]

Post a screenshot of your datastream configuration in the web console.

Pete.

[Cookins]

If that, what you meant

[John93]

Like this

[PeteKnight]

From the screen in your screenshot, click the EDIT button, then click on one of the datastreams that you want to be synchronised by the Blynk.syncAll() command.
At the bottom of the pop-up dialogue box click the “+ Advanced Settings” option.
Post a screenshot of what you see - or simply re-read this for the third time, and make the necessary change…

@PeteKnight

Blynk.syncAll() only works for the datastreams you create where you turn on the "Sync with latest server value every time device connects to the cloud` in the datastream’s Advanced options.

Pete.

[Cookins]

Switch:

And this is labeled value:

[PeteKnight]

I’d recommend using virtual pin datastreams for everything.

Using Virtual Pins to control physical devices

I thought I’d write a guide about how to use virtual pins with app widgets such as buttons, to control physical devices such as relays, LEDs etc… Why use virtual pins anyway? I’d always recommend using virtual pins over physical pins when developing your code. There are a number of reasons, but here are what I consider to be the main ones: Virtual pins are hardware independent. This means that it’s far easier to port your code from one hardware platform to another in future (when you realise…

Pete.

[Cookins]

Why not digital? Or digital can’t be sync, as I need? Kinda silly, that this can’t be sync… Is supposed to be handy in every way, on my opinion. Anyway, thanks. I think it’s all for now.

[PeteKnight]

You should read this…

Can't read Digital & Analog By ESP32S board

@Dmitriy can you explain how the analog and digital datastreams are meant to work for various hardware types? If I choose ESP8266 in the web console I see 5 analog pins available numbered A0-A4. I also see pins numbered 0-14 which I assume represent the digital pins. The ESP8266 has one analog pin, A0. If I choose digital pins for the ESP8266 I see 14 pins, numbered 0-13. The ESP8266 has the following GPIOs: 0, 1, 2, 3, 4, 5, 12, 13, 14 & 15. If I choose ESP32 then I see the same analog pin…

Pete.

[Cookins]

btw, i wanted to say to you -
you forgetting to add to some code, like {} (in this quoted linked messages), and in first message you told, in new code, changed to Edgent.begin();, but its BlynkEdgent.​begin​();. just for your to notice. you helped me, anyway.
its just, that people could copy paste this code and will get errors, so they will open new threads, etc.