Pro Maker_101
Published © LGPL

Make You Own Sonoff Using ESP-01

Today we are going to show you how to making your own Sonoff using ESP8266 01 Wifi module and relay.

IntermediateFull instructions provided4,565
Make You Own Sonoff Using ESP-01

Things used in this project

Hardware components

PCBWay Custom PCB
PCBWay Custom PCB
×1
Hi-Link - 5v
×1
5v Relay
×1
ESP8266 ESP-01
Espressif ESP8266 ESP-01
×1
LD33V IC
×1
MCT2E
×1
BC547
×1
1N4007 – High Voltage, High Current Rated Diode
1N4007 – High Voltage, High Current Rated Diode
×1
Resistor 1k ohm
Resistor 1k ohm
×1
LED (generic)
LED (generic)
×1
2 Pin Screw Connectors
×2

Software apps and online services

Arduino IDE
Arduino IDE
IoT OnOff®
Available on Android and iOS

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)
Solder Wire, Lead Free
Solder Wire, Lead Free
Solder Flux, Soldering
Solder Flux, Soldering

Story

Read more

Schematics

CIRCUIT DIAGRAM

Code

CODE

C/C++
/***************************************************
  This is the code for the project DIY WIFI switch using ESP8266
  
  Original code is from
  Adafruit MQTT Library ESP8266 Example

  Code edited by 
  Pro Maker_101
 ****************************************************/
#include <ESP8266WiFi.h>
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
#define relay 0

/************************* WiFi Access Point *********************************/

#define WLAN_SSID       "......."
#define WLAN_PASS       ".........."

/************************* Adafruit.io Setup *********************************/

#define AIO_SERVER      "io.adafruit.com"
#define AIO_SERVERPORT  1883                   // use 8883 for SSL
#define AIO_USERNAME    "..........."
#define AIO_KEY         ".........................."

/************ Global State (you don't need to change this!) ******************/

// Create an ESP8266 WiFiClient class to connect to the MQTT server.
WiFiClient client;
// or... use WiFiFlientSecure for SSL
//WiFiClientSecure client;

// Setup the MQTT client class by passing in the WiFi client and MQTT server and login details.
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);

/****************************** Feeds ***************************************/

// Setup a feed called 'photocell' for publishing.
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
//Adafruit_MQTT_Publish photocell = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/photocell");

// Setup a feed called 'onoff' for subscribing to changes.
Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/Switch");

/*************************** Sketch Code ************************************/

// Bug workaround for Arduino 1.6.6, it seems to need a function declaration
// for some reason (only affects ESP8266, likely an arduino-builder bug).
void MQTT_connect();

void setup() {
  Serial.begin(115200);
  delay(10);

  Serial.println(F("Adafruit MQTT demo"));

  // Connect to WiFi access point.
  Serial.println(); Serial.println();
  Serial.print("Connecting to ");
  Serial.println(WLAN_SSID);

  WiFi.begin(WLAN_SSID, WLAN_PASS);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println();

  Serial.println("WiFi connected");
  Serial.println("IP address: "); Serial.println(WiFi.localIP());

  pinMode(relay,OUTPUT);

  // Setup MQTT subscription for onoff feed.
  mqtt.subscribe(&onoffbutton);
}

uint32_t x=0;

void loop() {
  // Ensure the connection to the MQTT server is alive (this will make the first
  // connection and automatically reconnect when disconnected).  See the MQTT_connect
  // function definition further below.
  MQTT_connect();

  // this is our 'wait for incoming subscription packets' busy subloop
  // try to spend your time here

  Adafruit_MQTT_Subscribe *subscription;
  while ((subscription = mqtt.readSubscription(1))) {
    if (subscription == &onoffbutton) {
      Serial.print(F("Got: "));
      Serial.println((char *)onoffbutton.lastread);
      uint16_t state = atoi((char *)onoffbutton.lastread);
      digitalWrite(relay,state);
    }
  }


  // ping the server to keep the mqtt connection alive
  // NOT required if you are publishing once every KEEPALIVE seconds
  /*
  if(! mqtt.ping()) {
    mqtt.disconnect();
  }
  */
}

// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {

Credits

Pro Maker_101

Pro Maker_101

11 projects • 10 followers
Electrical,Electronics,DIY

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