ESP8266-12 Standalone Blynk Control Outlets Wireless 433 Mhz


Introduction: ESP8266-12 Standalone Blynk Control Outlets Wireless 433 Mhz

This is my first project on instructable ...

This project uses ESP8266-12 to turn on and turn off wireless outlets, without any changes, using the app Blynk library Rc-switch

Step 1:

Step 2: Materials

ESP8266-12 or ( ESP8266-07 , ...., ESP8266-12e)

RF 433 MHz Transmitter

3 wirelless remote control outlets

antenna 433mhz ( )

Step 3: Software E Library

Step 4: Sketch

change the sketch in the following lines with your data:

  • char auth[] = "xxxxxxxxxx"; //insert here your token generated by Blynk app
  • Blynk.begin(auth, "ssid", "password"); //insert here your SSID and password
  • mySwitch.switchOn(1, 1); // insert here your code outlets

rc-switch (follow the prompts to set the transmission code of your outlets remote control)

Step 5: Connections


VCC +3,3v

CH-PD +3,3v (new version ESP8266-12e pin EN)

GND ground

GPIO15 ground

GPIO13 ---------- pin ATAD (transmitter 433mhz )

transmitter 433mhz

ATAD ----- GPIO13 (ESP8266-12)

VCC +5v

GND ground

Step 6: Thanks



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    thankyou for this i had to use the tristate of my code for my sockets

    works great thankyou

    * Blynk is a platform with iOS and Android apps to control
    * Arduino, Raspberry Pi and the likes over the Internet.
    * You can easily build graphic interfaces for all your
    * projects by simply dragging and dropping widgets.
    * Downloads, docs, tutorials:
    * Blynk community:
    * Social networks:
    * Blynk library is licensed under MIT license
    * This example code is in public domain.
    * This example runs directly on ESP8266 chip.
    * You need to install this for ESP8266 development:
    * Change WiFi ssid, pass, and Blynk auth token to run :)

    #define BLYNK_PRINT Serial // Comment this out to disable prints and save space
    #include <ESP8266WiFi.h>
    #include <BlynkSimpleEsp8266.h>

    //-------- rcswitch------
    #include <RCSwitch.h>
    RCSwitch mySwitch = RCSwitch();

    char* socket1TriStateOn = "0FFFF0FFFF0F";
    char* socket1TriStateOff = "0FFFF0FFFFF0";
    char* socket2TriStateOn = "0FFFFFF0FF0F";
    char* socket2TriStateOff = "0FFFFFF0FFF0";
    char* socket3TriStateOn = "0FFFFF0FFF0F";
    char* socket3TriStateOff = "0FFFFF0FFFF0";

    // You should get Auth Token in the Blynk App.
    // Go to the Project Settings (nut icon).
    char auth[] = "own token from Blynk"; //insert here your token generated by Blynk

    void setup()
    Blynk.begin(auth, "SSID", Pass"); //insert here your SSID and password

    mySwitch.enableTransmit(2); // pin d4


    void loop()

    BLYNK_WRITE(0) { //virtual pin 0

    mySwitch.sendTriState(socket1TriStateOn);// insert here your code outlets

    BLYNK_WRITE(1) {

    BLYNK_WRITE(2) {

    BLYNK_WRITE(3) {
    BLYNK_WRITE(4) {

    BLYNK_WRITE(5) {

    I made it for the ESP-01. It turns my Christmas tree lights on and off. Tip: If your Arduino IDE compiler freezes - check for odd characters in the RCswitch.h file.

    Hi RoccoM1

    it should work, but I do not have it tested

    How do we know if this works with different outlets brand? I mean for example, is it possible to use this: ?

    Hi OlivierD2

    try entering the sketch

    mySwitch.switchOn("100010", "101001");



    1 reply

    How do you insert the code outlets, what is the syntax exactly ?

    BLYNK_WRITE(0) { //virtual pin 0

    mySwitch.switchOn(1, 1); // insert here your code outlets


    If my outlet code is for example 100010101001, how is the syntax of the Arduino code just after mySwitch.switchOn(1,1); ?

    thx for your reply

    Nice work, and I love the dancing robot gif! So cool!