WeMos D1 R2 (ESP8266) BLYNK 2.0 - Problem with digital pin

Solved
,
1

After pressing the button (V4) it does not turn on the pin (D5)

#define BLYNK_PRINT Serial
#define BLYNK_TEMPLATE_ID ""
#define BLYNK_DEVICE_NAME ""
#define BLYNK_AUTH_TOKEN ""


#include <Simpletimer.h>
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>


char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "";
char pass[] = "";

int value = V4;
int prz = D5;

BLYNK_CONNECTED() {
  Blynk.syncVirtual(V4);
}

void setup()
{
Serial.begin(9600);
Blynk.begin(auth, ssid, pass);
pinMode(prz, OUTPUT);
digitalWrite(prz, HIGH);
}

BLYNK_WRITE(value) 
{
  value = param.asInt();

if ( value == 1 ) 
  {
digitalWrite(prz,LOW);
  }  
}

void loop()
{
  Blynk.run();
}
3

This is a bit of a weird thing to do…

and the repeated use of value for two different things is also wrong, as it means that when you get a 1 or a 0 (on or off) from your switch widget your BLYNK_WRITE(value) command turns into BLYNK_WRITE(1) or BLYNKI_WRITE(0) so you’re no longer monitoring the widget attached to pin V4…

Try this instead…

#define BLYNK_TEMPLATE_ID ""
#define BLYNK_DEVICE_NAME ""
#define BLYNK_AUTH_TOKEN ""

#define BLYNK_PRINT Serial

#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>

char ssid[] = "";
char pass[] = "";

#define vpin  V4
#define prz   D5

BLYNK_CONNECTED()
{
  Blynk.syncVirtual(vpin);
}

void setup()
{
  Serial.begin(9600);
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
  pinMode(prz, OUTPUT);
  digitalWrite(prz, HIGH);
}

BLYNK_WRITE(vpin) 
{
  digitalWrite(prz,!param.asInt());
}

void loop()
{
  Blynk.run();
}

Pete.

1 Like
4

Thank you !!!