Im wondering if anyone can help me. Im very new to arduino and blynk and am having some difficulties with my project. I’m using an arduino mega wifi r3 with esp8266 to connect to blynk. I believe I am flooding the server because my app just keeps disconnecting and I just cant seem to figure it out. I am building a controller to control a pump and soil moisture sensors, any advice or suggestions would be greatly appreciated!
#include <SPI.h>
#define BLYNK_PRINT Serial
#include <ESP8266_Lib.h>
#include <BlynkSimpleShieldEsp8266.h>
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "REDACTED";
// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "REDACTED";
char pass[] = "REDACTED";
#define WATER_PUMP1 27 // relay pin
#define VPIN_PUMP1ON V14 // Blynk button to control relay
#define VPIN_SLIDERTIMEON_PUMP1 V16 // blynk app Numeric Input Widget
// Hardware Serial on Mega, Leonardo, Micro...
#define EspSerial Serial3
// 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);
int buttonState; //expecting 0 or 1
float stepValue; //expecting 0.00-80.00
float ml; //Step Widget to determine amount of ml/Output 0-80/Step 0.2
uint32_t startCount; //Millis reference used to calculate stopCount
uint32_t stopCount; //
uint32_t multiplier = 858; //Number of milliseconds for motor to produce 1ml of liquid
BlynkTimer timer; // Announcing the timer
WidgetTerminal terminal(V18);
//int solenoidPin = 30; // solenoid valve pin
const int AirValue = 620; //you need to replace this value with Value_1
const int WaterValue = 280; //you need to replace this value with Value_2
int soilMoistureValue = 0;
int soilmoisturepercent = 0;
void checkPump()
{
if (buttonState == 1)
{
ml = stepValue * multiplier; //Step Widget Value times Calibration Multiplier
startCount = millis(); //Reference the Millis count
stopCount = ml + startCount;
terminal.print("stepValue is: ");
terminal.println(stepValue);
terminal.print("ml: ");
terminal.println(ml);
terminal.print("startCount is: ");
terminal.println(startCount);
terminal.print("stopCount is: ");
terminal.println(stopCount);
Blynk.virtualWrite(buttonState, 0);
terminal.flush();
}
if (stopCount <= (millis() - startCount)) //If V0 x multi + start is less than or equal to total millis
{
digitalWrite(WATER_PUMP1, HIGH);
terminal.println("LED");
terminal.flush();
}
else (buttonState = 0);
{
ml = 0;
startCount = 0;
stopCount = 0;
digitalWrite(WATER_PUMP1, LOW);
}
}
// This function tells Arduino what to do if there is a Widget
// which is requesting data for Virtual Pin (5)
//BLYNK_READ(V0)
// Push Soil Sensor values to Blynk graph
void soilsensorDataSend()
// Capacitive Soil Moisture Sensor V1.2 A1
{
soilMoistureValue = analogRead(A4); // reading sensor from analog pin
soilmoisturepercent = map(soilMoistureValue, AirValue, WaterValue, 0, 100);
soilmoisturepercent = constrain(soilmoisturepercent, 0, 100);
Blynk.virtualWrite(V0, soilmoisturepercent); // sending sensor value to Blynk app
// Capacitive Soil Moisture Sensor V1.2 A2
soilMoistureValue = analogRead(A5); // reading sensor from analog pin
soilmoisturepercent = map(soilMoistureValue, AirValue, WaterValue, 0, 100);
soilmoisturepercent = constrain(soilmoisturepercent, 0, 100);
Blynk.virtualWrite(V1, soilmoisturepercent); // sending sensor value to Blynk app
// Capacitive Soil Moisture Sensor V1.2 A3
soilMoistureValue = analogRead(A6); // reading sensor from analog pin
soilmoisturepercent = map(soilMoistureValue, AirValue, WaterValue, 0, 100);
soilmoisturepercent = constrain(soilmoisturepercent, 0, 100);
Blynk.virtualWrite(V2, soilmoisturepercent); // sending sensor value to Blynk app
// Capacitive Soil Moisture Sensor V1.2 A4
soilMoistureValue = analogRead(A7); // reading sensor from analog pin
soilmoisturepercent = map(soilMoistureValue, AirValue, WaterValue, 0, 100);
soilmoisturepercent = constrain(soilmoisturepercent, 0, 100);
Blynk.virtualWrite(V3, soilmoisturepercent); // sending sensor value to Blynk app
// Capacitive Soil Moisture Sensor V1.2 B1
soilMoistureValue = analogRead(A8); // reading sensor from analog pin
soilmoisturepercent = map(soilMoistureValue, AirValue, WaterValue, 0, 100);
soilmoisturepercent = constrain(soilmoisturepercent, 0, 100);
Blynk.virtualWrite(V4, soilmoisturepercent); // sending sensor value to Blynk app
// Capacitive Soil Moisture Sensor V1.2 B2
soilMoistureValue = analogRead(A9); // reading sensor from analog pin
soilmoisturepercent = map(soilMoistureValue, AirValue, WaterValue, 0, 100);
soilmoisturepercent = constrain(soilmoisturepercent, 0, 100);
Blynk.virtualWrite(V5, soilmoisturepercent); // sending sensor value to Blynk app
// Capacitive Soil Moisture Sensor V1.2 B3
soilMoistureValue = analogRead(A10); // reading sensor from analog pin
soilmoisturepercent = map(soilMoistureValue, AirValue, WaterValue, 0, 100);
soilmoisturepercent = constrain(soilmoisturepercent, 0, 100);
Blynk.virtualWrite(V6, soilmoisturepercent); // sending sensor value to Blynk app
// Capacitive Soil Moisture Sensor V1.2 B4
soilMoistureValue = analogRead(A11); // reading sensor from analog pin
soilmoisturepercent = map(soilMoistureValue, AirValue, WaterValue, 0, 100);
soilmoisturepercent = constrain(soilmoisturepercent, 0, 100);
Blynk.virtualWrite(V7, soilmoisturepercent); // sending sensor value to Blynk app
// Capacitive Soil Moisture Sensor V1.2 C1
soilMoistureValue = analogRead(A12); // reading sensor from analog pin
soilmoisturepercent = map(soilMoistureValue, AirValue, WaterValue, 0, 100);
soilmoisturepercent = constrain(soilmoisturepercent, 0, 100);
Blynk.virtualWrite(V8, soilmoisturepercent); // sending sensor value to Blynk app
// Capacitive Soil Moisture Sensor V1.2 C2
soilMoistureValue = analogRead(A13); // reading sensor from analog pin
soilmoisturepercent = map(soilMoistureValue, AirValue, WaterValue, 0, 100);
soilmoisturepercent = constrain(soilmoisturepercent, 0, 100);
Blynk.virtualWrite(V9, soilmoisturepercent); // sending sensor value to Blynk app
// Capacitive Soil Moisture Sensor V1.2 C3
soilMoistureValue = analogRead(A14); // reading sensor from analog pin
soilmoisturepercent = map(soilMoistureValue, AirValue, WaterValue, 0, 100);
soilmoisturepercent = constrain(soilmoisturepercent, 0, 100);
Blynk.virtualWrite(V10, soilmoisturepercent); // sending sensor value to Blynk app
// Capacitive Soil Moisture Sensor V1.2 C4
soilMoistureValue = analogRead(A15); // reading sensor from analog pin
soilmoisturepercent = map(soilMoistureValue, AirValue, WaterValue, 0, 100);
soilmoisturepercent = constrain(soilmoisturepercent, 0, 100);
Blynk.virtualWrite(V11, soilmoisturepercent); // sending sensor value to Blynk app
}
void setup()
{
// Debug console
Serial.begin(9600);
pinMode(WATER_PUMP1, OUTPUT);
//pinMode(solenoidPin, OUTPUT);
// Set ESP8266 baud rate
EspSerial.begin(ESP8266_BAUD);
Blynk.begin(auth, wifi, ssid, pass);
while (Blynk.connect() == false) {}
timer.setInterval(2000L, soilsensorDataSend); //timer will run every 2 sec
timer.setInterval(3000L, checkPump); //timer will run every 3 sec
Blynk.syncVirtual(V14);
// 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);
}
void loop()
{
Blynk.run();
timer.run(); // run timer every second
}
// set as globals
BLYNK_WRITE(V14) { // blynk button
buttonState = param.asInt(); // set the global button state as ON or OFF
Serial.println(String("button state = ") + buttonState); // will output 1 or 0 to serial monitor
Blynk.syncVirtual(V1); // trigger V1 function below to set current stepValue from widget, also put this line in setup() right after connecting to update on boot
}
BLYNK_WRITE(V16) { //blynk step widget
stepValue = param.asFloat(); // set the global step value
Serial.println(String("stepValue = ") + stepValue ); // will output stepValue to serial
}
