Hi friends welcome to meworks Telugu. I made a project real-time home automation project with ESP8266 the cost of the project is nearly 500 rupees only.
HOW THIS ESP8266 HOME AUTOMATION WORKS:
If you want to know about how this project works watch the below video here I explain everything clearly.
COMPONENTS REQUIRED :
ESP8266 BuyNow
2 Channel Relay BuyNow
Breadboard and wires BuyNow
also, check this website here the price of components is very low https://www.electronicscomp.com/
ESP8266 HOME AUTOMATION CIRCUIT DIAGRAM :
ESP8266 LINK:
https://dl.espressif.com/dl/package_esp32_index.json, http://arduino.esp8266.com/stable/package_esp8266com_index.json
Check out this blog for more information
ESP8266 HOME AUTOMATION CODE:
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include "SinricPro.h"
#include "SinricProSwitch.h"
#include <map>
#define WIFI_SSID "mewt"
#define WIFI_PASS "Veera@0000"
#define APP_KEY "YOUR APP KEY" // Should look like "de0bxxxx-1x3x-4x3x-ax2x-5dabxxxxxxxx"
#define APP_SECRET "YOUR SECRET KEY" // Should look like "5f36xxxx-x3x7-4x3x-xexe-e86724a9xxxx-4c4axxxx-3x3x-x5xe-x9x3-333d65xxxxxx"
//Enter the device IDs here
#define device_ID_1 "SWITCH_ID_NO_1_HERE"
#define device_ID_2 "SWITCH_ID_NO_2_HERE"
#define device_ID_3 "SWITCH_ID_NO_3_HERE"
#define device_ID_4 "SWITCH_ID_NO_4_HERE"
// define the GPIO connected with Relays and switches
#define RelayPin1 5 //D1
#define RelayPin2 4 //D2
#define RelayPin3 0 //D5
#define RelayPin4 2 //D6
#define SwitchPin1 14 //D5
#define SwitchPin2 12 //D6
#define SwitchPin3 13 //D7
#define SwitchPin4 15 //D8
#define wifiLed 16 //D0
// comment the following line if you use a toggle switches instead of tactile buttons
//#define TACTILE_BUTTON 1
#define BAUD_RATE 9600
#define DEBOUNCE_TIME 250
typedef struct { // struct for the std::map below
int relayPIN;
int flipSwitchPIN;
} deviceConfig_t;
// this is the main configuration
// please put in your deviceId, the PIN for Relay and PIN for flipSwitch
// this can be up to N devices...depending on how much pin's available on your device ;)
// right now we have 4 devicesIds going to 4 relays and 4 flip switches to switch the relay manually
std::map<String, deviceConfig_t> devices = {
//{deviceId, {relayPIN, flipSwitchPIN}}
{device_ID_1, { RelayPin1, SwitchPin1 }},
{device_ID_2, { RelayPin2, SwitchPin2 }},{device_ID_3, { RelayPin3, SwitchPin3 }},
{device_ID_4, { RelayPin4, SwitchPin4 }}
};
typedef struct { // struct for the std::map below
String deviceId;
bool lastFlipSwitchState;
unsigned long lastFlipSwitchChange;
} flipSwitchConfig_t;
std::map<int, flipSwitchConfig_t> flipSwitches; // this map is used to map flipSwitch PINs to deviceId and handling debounce and last flipSwitch state checks
// it will be setup in "setupFlipSwitches" function, using informations from devices map
void setupRelays() {
for (auto &device : devices) { // for each device (relay, flipSwitch combination)
int relayPIN = device.second.relayPIN; // get the relay pin
pinMode(relayPIN, OUTPUT); // set relay pin to OUTPUT
digitalWrite(relayPIN, HIGH);
}
}
void setupFlipSwitches() {
for (auto &device : devices) { // for each device (relay / flipSwitch combination)
flipSwitchConfig_t flipSwitchConfig; // create a new flipSwitch configuration
flipSwitchConfig.deviceId = device.first; // set the deviceId
flipSwitchConfig.lastFlipSwitchChange = 0; // set debounce time
flipSwitchConfig.lastFlipSwitchState = true; // set lastFlipSwitchState to false (LOW)--
int flipSwitchPIN = device.second.flipSwitchPIN; // get the flipSwitchPIN
flipSwitches[flipSwitchPIN] = flipSwitchConfig; // save the flipSwitch config to flipSwitches map
pinMode(flipSwitchPIN, INPUT_PULLUP); // set the flipSwitch pin to INPUT
}
}
bool onPowerState(String deviceId, bool &state)
{
Serial.printf("%s: %s\r\n", deviceId.c_str(), state ? "on" : "off");
int relayPIN = devices[deviceId].relayPIN; // get the relay pin for corresponding device
digitalWrite(relayPIN, !state); // set the new relay state
return true;
}
void handleFlipSwitches() {
unsigned long actualMillis = millis(); // get actual millis
for (auto &flipSwitch : flipSwitches) { // for each flipSwitch in flipSwitches map
unsigned long lastFlipSwitchChange = flipSwitch.second.lastFlipSwitchChange; // get the timestamp when flipSwitch was pressed last time (used to debounce / limit events)
if (actualMillis - lastFlipSwitchChange > DEBOUNCE_TIME) { // if time is > debounce time...
int flipSwitchPIN = flipSwitch.first; // get the flipSwitch pin from configuration
bool lastFlipSwitchState = flipSwitch.second.lastFlipSwitchState; // get the lastFlipSwitchState
bool flipSwitchState = digitalRead(flipSwitchPIN); // read the current flipSwitch state
if (flipSwitchState != lastFlipSwitchState) { // if the flipSwitchState has changed...
#ifdef TACTILE_BUTTON
if (flipSwitchState) { // if the tactile button is pressed
#endif
flipSwitch.second.lastFlipSwitchChange = actualMillis; // update lastFlipSwitchChange time
String deviceId = flipSwitch.second.deviceId; // get the deviceId from config
int relayPIN = devices[deviceId].relayPIN; // get the relayPIN from config
bool newRelayState = !digitalRead(relayPIN); // set the new relay State
digitalWrite(relayPIN, newRelayState); // set the trelay to the new state
SinricProSwitch &mySwitch = SinricPro[deviceId]; // get Switch device from SinricPro
mySwitch.sendPowerStateEvent(!newRelayState); // send the event
#ifdef TACTILE_BUTTON
}
#endif
flipSwitch.second.lastFlipSwitchState = flipSwitchState; // update lastFlipSwitchState
}
}
}
}
void setupWiFi()
{
Serial.printf("\r\n[Wifi]: Connecting");
WiFi.begin(WIFI_SSID, WIFI_PASS);
while (WiFi.status() != WL_CONNECTED)
{
Serial.printf(".");
delay(250);
}
digitalWrite(wifiLed, LOW);
Serial.printf("connected!\r\n[WiFi]: IP-Address is %s\r\n", WiFi.localIP().toString().c_str());
}
void setupSinricPro()
{
for (auto &device : devices)
{
const char *deviceId = device.first.c_str();
SinricProSwitch &mySwitch = SinricPro[deviceId];
mySwitch.onPowerState(onPowerState);
}
SinricPro.begin(APP_KEY, APP_SECRET);
SinricPro.restoreDeviceStates(true);
}
void setup()
{
Serial.begin(BAUD_RATE);
pinMode(wifiLed, OUTPUT);
digitalWrite(wifiLed, HIGH);
setupRelays();
setupFlipSwitches();
setupWiFi();
setupSinricPro();
}
void loop()
{
SinricPro.handle();
handleFlipSwitches();
}
If you have any doubts regarding this project contact me on Instagram or in the YouTube comment section, I will help my best. YouTube and Instagram links are available on this blog.
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