Wemos D1 + Blynk + Arduino IDE (Dont Work)

EscuderoKevin · October 28, 2021, 8:24am

Hi , this is my code.

#define BLYNK_TEMPLATE_ID “”
#define BLYNK_DEVICE_NAME “Wemos Living”
#define BLYNK_AUTH_TOKEN “”

#define BLYNK_PRINT Serial

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


BlynkTimer timer;

char auth[] = BLYNK_AUTH_TOKEN;

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


const int timbre = D2;
const int btntimbre = D6;


const int btnluz = D4;

const int luzliving = D1;
const int luzgarage = D8;

int estadotimbre = LOW;
int estadobtntimbre = LOW;
int estadobtnluz = LOW;
int estadoluzliving = LOW;
int estadoluzgarage = LOW;


BLYNK_WRITE(V1) {
  estadoluzliving = param.asInt();
  digitalWrite(luzliving, estadoluzliving);
  Blynk.virtualWrite(V1, estadoluzliving);
}
BLYNK_WRITE(V2) {
  estadoluzgarage = param.asInt();
  digitalWrite(luzgarage, estadoluzgarage);
  Blynk.virtualWrite(V2, estadoluzgarage);
}


void setup()
{
  // Debug console
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);

  pinMode(luzliving, OUTPUT);
  pinMode(luzgarage, OUTPUT);
  pinMode(timbre, OUTPUT);

  pinMode(btntimbre, INPUT_PULLUP);
  pinMode(btnluz, INPUT_PULLUP);

  Serial.print("Sistema Iniciado");
  timer.setInterval(100L, checkearbotontimbre);
  timer.setInterval(200L, checkearbotonluzliving);
}

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

}

void checkearbotontimbre()
{

  if (digitalRead(btntimbre) == LOW) {
    if (estadobtntimbre != LOW) {
      Serial.print("LOOOOOOW");
      Serial.println();
      SonarTimbre();
      Blynk.notify("[CASA] Alguien toco el timbre.");
    }
    estadobtntimbre = LOW;
  } else {
    estadobtntimbre = HIGH;
  }
}

void checkearbotonluzliving()
{
  if (digitalRead(btnluz) == LOW) {
    if (estadobtnluz != LOW) {
      estadoluzliving = !estadoluzliving;
      digitalWrite(luzliving, estadoluzliving);
      Blynk.virtualWrite(V2, estadoluzliving);
    }
    estadobtnluz = LOW;
  } else {
    estadobtnluz = HIGH;
  }
}


void SonarTimbre()
{
  digitalWrite(timbre, LOW);
  Serial.print("Timbre Encendido");
  Serial.println();
  timer.setTimeout(2000L, ApagarTimbre);  // Run ActionOFF function in 5 seconds
}

void ApagarTimbre()
{
  Serial.print("Timbre Apagado");
  Serial.println();
  digitalWrite(timbre, LOW);
  estadobtntimbre = !estadobtntimbre;
}

I have problems for upload idk what board need to use for work…

idk if my wemos is D1 or D2… I just similar to arduino UNO. (size)

imagen

The problem is when i upload with

Serial prints working but relay (outputs) dont work…

When i upload with

Relay Works but Serial Prints dont work…

idk what happend i dont find doc about this…

I just need 4 outputs and 2 inputs idk what board really need for buy.

Thx for all hlep!

PeteKnight · October 28, 2021, 8:39am

Some photos of your board would help.

It sounds like maybe you’re connecting the relays to the wrong pins.

Pete.

EscuderoKevin · October 28, 2021, 9:43am

EscuderoKevin · October 28, 2021, 9:50am

There is, sorry about double post but cant reply with photos only idk why.

PeteKnight · October 28, 2021, 9:59am

That’s a D1 R1
Make sure you use the PIN numbers in red on this diagram when you’re connecting-up your relays…

Pete.

EscuderoKevin · October 29, 2021, 5:52am

Yes i use red pins, but idk what happend with 3 boards same issue, my code its ok ?

EscuderoKevin · October 29, 2021, 1:02pm

Code working correct when i put D6 to GND show me this in console.

PeteKnight · October 29, 2021, 3:19pm

That’s your serial monitor.

You’d be far better copying and pasting the contents of your serial monitor than posting a screenshot.

Pete.

EscuderoKevin · October 29, 2021, 10:24pm

[4297] Connected to WiFi
[4297] IP: 192.168.1.122
[4297]
___ __ __
/ _ )/ /_ _____ / /__
/ _ / / // / _ / '/
///_, /////_
/__/ v1.0.1 on ESP8266

[4374] Connecting to blynk.cloud:80
[4770] Ready (ping: 158ms).
Sistema IniciadoLOOOOOOW
Timbre Encendido
LOOOOOOW
Timbre Encendido
Timbre Apagado
LOOOOOOW
Timbre Encendido
Timbre Apagado
LOOOOOOW
Timbre Encendido
Timbre Apagado
LOOOOOOW
Timbre Encendido
Timbre Apagado
LOOOOOOW
Timbre Encendido
Timbre Apagado
Timbre Apagado
LOOOOOOW
Timbre Encendido
Timbre Apagado
LOOOOOOW
Timbre Encendido
Timbre Apagado

TorNor · October 29, 2021, 11:37pm

Hi Kevin

Try use for output D1, D2 , D7 and D0, D4, D5 for input
Do not use D8 at all

/Torben

John93 · October 30, 2021, 4:15am

This is the WeMos D1 pin mapping

EscuderoKevin · October 31, 2021, 9:42am

#define BLYNK_TEMPLATE_ID           ""
#define BLYNK_DEVICE_NAME           "Wemos Living"
#define BLYNK_AUTH_TOKEN            ""


#define BLYNK_PRINT Serial

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


BlynkTimer timer;

char auth[] = BLYNK_AUTH_TOKEN;

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


const int timbre = D7;
const int btntimbre = D5;

int estadotimbre = LOW;
int estadobtntimbre = LOW;

void setup()
{
  // Debug console
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);


  pinMode(timbre, OUTPUT);
  pinMode(btntimbre, INPUT_PULLUP);


  Serial.print("Sistema Iniciado");
  timer.setInterval(100L, checkearbotontimbre);

}

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

}

void checkearbotontimbre()
{

  if (digitalRead(btntimbre) == LOW) {
    if (estadobtntimbre != LOW) {
      Serial.print("LOOOOOOW");
      Serial.println();
      SonarTimbre();
      Blynk.notify("[CASA] Alguien toco el timbre.");
    }
    estadobtntimbre = LOW;
  } else {
    estadobtntimbre = HIGH;
  }
}


void SonarTimbre()
{
  digitalWrite(timbre, LOW);
  Serial.print("Timbre Encendido");
  Serial.println();
  timer.setTimeout(2000L, ApagarTimbre);  // Run ActionOFF function in 5 seconds
}

void ApagarTimbre()
{
  Serial.print("Timbre Apagado");
  Serial.println();
  digitalWrite(timbre, LOW);
  estadobtntimbre = !estadobtntimbre;
}

Not working… i test with 4 wemos idk what happend.Change Wires, change Relays , change USB cable i think the problem is the selected board in arduino or the code its not ok.

PeteKnight · October 31, 2021, 9:56am

We don’t know either, because you’re not providing information to us about how your hardware is actually connected to your board (in the form of a schematic), how your relays are powered and whether they are active LOW or active HIGH relays.

You also havent elaborated on what this statement means…

Pete.

EscuderoKevin · October 31, 2021, 10:02am

mmm sorry about my english, im from argentina.

Wemos powered with PIN 12V 2A. 4 Relays Modules Poweres with Wemos (Working if i put simple code with virtual pins. Example if i put datastream V1 and BLYNK_WRITE(V1) with digitalWrite to Relays Working Perfect)

But when i use my code for read Physycall button dont work.

4 MODULE RELAY ------- WEMOS

GND ------- GND
VCC ------- 5v
RELAY1 ------- D2

Button with with GND for check physicall button its conected to D4. When i give GND to D4 Serial Prints (Funcionts Working Perfect but relay dont work)

John93 · October 31, 2021, 10:08am

@EscuderoKevin You would like to control the relay using the app and a button, am I right ?

PeteKnight · October 31, 2021, 10:17am

Your code is checking pin D5

Pete.

EscuderoKevin · October 31, 2021, 10:17am

Yep, Control 2 Relays.

When physical button pushed ON RELAY 1 , 5 SECONDS LATER STOP RELAY 1.

When 2cond physical button pushed ON RELAY 2. When pushed agian OFF RELAY 2. (This code is simple)

    // When App button is pushed - switch the state
BLYNK_WRITE(V2) {
  ledState = param.asInt();
  digitalWrite(ledPin, ledState);
}

void checkPhysicalButton()
{
  if (digitalRead(btnPin) == LOW) {
    // btnState is used to avoid sequential toggles
    if (btnState != LOW) {

      // Toggle LED state
      ledState = !ledState;
         ledState = !ledState;
      digitalWrite(ledPin, ledState);

      // Update Button Widget
      Blynk.virtualWrite(V2, ledState);
    }
    btnState = LOW;
  } else {
    btnState = HIGH;
  }
}

Relay 1 its only controlled with physical button.
Relay 2 its controlled with physical button and App.

EscuderoKevin · October 31, 2021, 10:17am

Yes i see that but i conected correct.

PeteKnight · October 31, 2021, 10:18am

Please post a schematic, which matches your actual hardware wiring setup.

Pete.

John93 · October 31, 2021, 10:20am

First, you can try this example : Blynk Example Browser

Second, blynk.notify has been replaced with blynk.logevent, check this out
https://docs.blynk.io/en/getting-started/events-tutorial