Hi guys, I’m working on my final project using ESP8266 Node MCU and display value on Blynk IoT 2.0. So I use DS18b20 as a temperature sensor and YL - 69 as a moisture sensor. It’s working properly to print on serial. The problem is when I started to connect to Blynk using Blynk.virtualWrite, i had some problem with it.
It said “‘Blynk’ does not name a type”
Here is my code:
// Fill-in information from your Blynk Template here
#define BLYNK_TEMPLATE_ID "TMPLdrZDyMrO"
#define BLYNK_DEVICE_NAME "Smart Plant"
#define BLYNK_FIRMWARE_VERSION "0.1.0"
#define BLYNK_PRINT Serial
//#define BLYNK_DEBUG
#define APP_DEBUG
#include <OneWire.h>
#include <DallasTemperature.h>
#define led D1
boolean bt_state=HIGH;
unsigned long times=millis();
#include "BlynkEdgent.h"
int moisture_pin = A0;
int moisture_value ;
const int oneWireBus = 4;
OneWire oneWire(oneWireBus);
DallasTemperature sensors(&oneWire);
void setup()
{
Serial.begin(115200);
sensors.begin();
delay(100);
pinMode(led, OUTPUT);
BlynkEdgent.begin();
}
BLYNK_WRITE(V0)
{
int pinLED = param.asInt();
digitalWrite(led, pinLED);
}
void loop() {
BlynkEdgent.run();
sensors.requestTemperatures();
float temperature = sensors.getTempCByIndex(0);
//do am dat
moisture_value = analogRead(moisture_pin);
moisture_value = map(moisture_value,1024,552,0,100);
}
Blynk.virtualWrite(V2,moisture_value);
Blynk.virtualWrite(V3,temperature);
Serial.print("Do am dat : ");
Serial.print(moisture_value);
Serial.print("%\n");
Serial.print("Nhiet do : ");
Serial.print(temperature);
Serial.println("ºC");
delay(5000);
}