Soil Moisture Data not pushing to Blynk

Need Help With My Project
1

Hi, there

I have bought this board.
I have success with understanding of DIP switches. But, I am failing to integrate Blynk with this board:

Using this board with Android Blynk app running on Android 9 & 6

I am not able to upload soil moisture sensor data to value display widget or gauge.

I have checked the ESP8266 Serial
It connects to blynk and shows ready for ping.

The problem with this board is I can’t use serial while ESP8266 and Atmega2560 are communicating according to DIP Switches.

Is there any mistake in code or firmware or what? Please guide.


#define BLYNK_PRINT Serial
#include <ESP8266_Lib.h>
#include <BlynkSimpleShieldEsp8266.h>

char auth[] = "tDUJKWT72VJclvEwIk0nTNXX0k_x0sW6";
char ssid[] = "CA Parul Gupta";
char pass[] = "9a346f62b700";

int sensorValue = 0;
int sensorPin = A0;
int sensorValuePercent = 0;

#define EspSerial Serial1

// or Software Serial on Uno, Nano...
#include <SoftwareSerial.h>
//SoftwareSerial EspSerial(2, 3); // RX, TX

// Your ESP8266 baud rate:
#define ESP8266_BAUD 115200

ESP8266 wifi(&EspSerial);

BlynkTimer timer;


// This function sends Arduino's up time every second to Virtual Pin (5).
// In the app, Widget's reading frequency should be set to PUSH. This means
// that you define how often to send data to Blynk App.
void myTimerEvent()
{
  // You can send any value at any time.
  // Please don't send more that 10 values per second.
  sensorValue = map(sensorValue, 0, 1023, 1023, 0);
  sensorValuePercent = (sensorValue / 1023) * 100;
  sensorValue = analogRead(sensorPin);
  EspSerial.print("\nThe moisture level is");
  EspSerial.print(sensorValue);
  EspSerial.print("\n");
  EspSerial.print(sensorValuePercent);
  delay(1000);
  Blynk.virtualWrite(V5, sensorValue);
}

void setup()
{
  // Debug console
  Serial.begin(9600);

  // Set ESP8266 baud rate
  EspSerial.begin(ESP8266_BAUD);
  delay(10);

  Blynk.begin(auth, wifi, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, wifi, ssid, pass, "blynk-cloud.com", 80);
  //Blynk.begin(auth, wifi, ssid, pass, IPAddress(192,168,1,100), 8080);

  // Setup a function to be called every second
  timer.setInterval(1000L, myTimerEvent);

}

void loop()
{
  Blynk.run();
  timer.run(); // Initiates BlynkTimer
  myTimerEvent();
  }
2

So many things wrong here!

The onboard ESP8266 needs exclusive use ofone of the Mega’s serial ports. The same port can’t be used to send AT commands to communicate with Blynk and at the same time be used for debug messages.

You are trying to do both, by connecting to Blynk via Serial1 (referred to as EspSerial in your code) and also directing your debug messages to EspSerial like this:

You should be sending these debug messages to Serial, not EspSerial.

Other problems include…

You cannot call myTimerEvent from your void loop. You are already using a timer to call it once every second, so this line needs to be deleted from your void loop.

You are also including the SoftwareSerial library, which is used to create additional serial ports with boards like the Uno, but that’s not needed for this board.

Pete.

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