Switch widget not working

Need Help With My Project
,
1

My Blynk app switch not working. I have connected the water pump with relay module. and the relay module is connected with ESP8266 nodemcu. I added a switch to turn on the water pump but when I am pressing it, it is not working. Please help me

My project is about Plant monitoring. It has soil moisture sensor, Humidity sensor, Temperature sensor. my idea is - we can see soil moisture, humidity, temperature on the app. Water pump and LED is also attached. I used switch for LED and water pump. But when I give power to the ESP8266 and turn on the switch of water pump, it does not turn on. here is the code I used, Please tell me my mistake. Please
pensive: pensive:

#define BLYNK_TEMPLATE_ID "TMPLH3002sX_"
#define BLYNK_DEVICE_NAME "CPI project"
#define BLYNK_AUTH_TOKEN "h26aw15t_uu5oTfhwIKroGdEh9n_UlwM"
#define BLYNK_PRINT Serial
#include <OneWire.h>
#include <SPI.h>
#include <BlynkSimpleEsp8266.h>
#include <DHT.h>
#include <DallasTemperature.h>
#define ONE_WIRE_BUS D2
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Fog-1";
char pass[] = "amiseemu33";

#define DHTPIN 2
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);
SimpleTimer timer;
void sendSensor()
{
float h = dht.readHumidity();
float t = dht.readTemperature();

if (isnan(h) || isnan(t)) {
Serial.println("Failed to read from DHT sensor!");
return;
}

Blynk.virtualWrite(V5, h); //V5 is for Humidity
Blynk.virtualWrite(V6, t); //V6 is for Temperature
}
void setup()
{
Serial.begin(9600);
dht.begin();

timer.setInterval(1000L, sendSensor);
Blynk.begin(auth, ssid, pass);
sensors.begin();
}
int sensor=0;
int output=0;
void sendTemps()
{
sensor=analogRead(A0);
output=(145-map(sensor,0,1023,0,100)); //in place 145 there is 100(it change with the change in sensor)
delay(1000);
sensors.requestTemperatures();
float temp = sensors.getTempCByIndex(0);
Serial.println(temp);
Serial.print("moisture = ");
Serial.print(output);
Serial.println("%");
Blynk.virtualWrite(V1, temp);
Blynk.virtualWrite(V2,output);
delay(1000);
}
void loop()
{
Blynk.run();
timer.run();
sendTemps();
}

And these are the pins I used:
Soil Moisture - V2
Humidity - V5
Temperature - V6
LED - D3
Water pump - D5

2

Please edit your post and add triple backticks ( ``` ) before and after your whole sketch.

3

done

4

First of all, you should read this

you can use this code for example to control the pump using a switch widget.

BLYNK_WRITE(V1) // this command is listening when something is written to V1
{
  int pinValue = param.asInt(); // assigning incoming value from pin V1 to a variable
  
  if (pinValue == 1){
   // do something when button is pressed;
  } else if (pinValue == 0) {
   // do something when button is released;
  }
  
  Serial.print("V1 button value is: "); // printing value to serial monitor
  Serial.println(pinValue);
}
5

I’ve edited the title of your topic to make it more representative of the issue.

If you want to understand how virtual pins work, and how that an be used to control your devices then you should read this…

Pete.

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