Android Based Home Automation Via Internet and Ethernet

This is a project to assist elderly and handicapped people to live more independent.

My project provide few features which is control home appliances using android smartphone through the internet and also Ethernet. That mean they do not move to the switch, then they can access and control the home appliances anywhere and anytime without anyone help.

The project also allow user to control some home appliances switch on/off at certain time. The user do not need repeat control the home appliances which need to on and off every day and certain time.

Besides, user also can trigger the alarm by using voice, because handicapped and elderly people may facing emergency situation alone at home. They may did not reach to phone. So they can simply trigger the alarm ask for help by using voice.

- PIC18F4550

- ENC28J60

- DS1307

- PIC10F222

- ROUTER

- ANDROID PHONE

- LM35

- DC TO AC CONVERTOR

- VOICE SENSOR

- BT136

- MOC3021

- 4N25

- RJ45 CONNECTOR

- Some passive electronic component

This is the basic circuit i used to control the AC appliances.

The reason that i use TRIAC and optocoupler, to prevent relay spark noise.

I used relay before, and it make the system unstable.

But the Triac also have some weakness, i'm not professional, wait professional to answer it.

Actually, the Circuit that i control the speed of wall fan, also design based on the TRIAC circuit.

A circuit as a switch, 3 circuit control 3 speed of wall fan, and only one is on at one time.

This one i copy from here.

Thanks to diy_bloke

Read it, very detail

https://www.instructables.com/id/Arduino-controlled...

#include "fileheader.h"

const char main_page[]="C%0";

const char time_page[]="T%1";

char debug[7];

int32 http_get_page(char *file_str)

{

int32 file_loc=0;

int8 i=0;

int8 days=0;

int8 month=0;

int8 year=0;

int8 hour=0;

int8 min=0;

int8 second=0;

int8 dow=0;

static char dimmer[] ="/D";

static char fan[] ="/F";

static char powersocket[] ="/S";

static char alarmsystem[] ="/A";

static char magneticlock[] ="/L";

static char statecheck[] ="/C";

static char rtc_io[] ="/T";

debug[0]=file_str[0];

debug[1]=file_str[1];

debug[2]=file_str[2];

debug[3]=file_str[3];

debug[4]=file_str[4];

//dimmer control

if (stricmp(file_str[1],dimmer[1])==0)

{

i=(file_str[2] & 0b11001111)* 100 + (file_str[3]&0b11001111) * 10 + (file_str[4]&0b11001111);

bulb_brightness(i);

file_loc=label_address(main_page);

}

//alarm control

if (stricmp(file_str,alarmsystem)==0)

{

toggle_alarm_state();

file_loc=label_address(main_page);

}

//rtc_io

if (stricmp(file_str[1],rtc_io[1])==0)

{

if(file_str[2]=='s') //set time

{

days = (file_str[3] & 0b11001111)* 10 + (file_str[4]&0b11001111);

month = (file_str[5] & 0b11001111)* 10 + (file_str[6]&0b11001111);

year = (file_str[7] & 0b11001111)* 10 + (file_str[8]&0b11001111);

dow = (file_str[9] & 0b11001111);

hour = (file_str[10] & 0b11001111)* 10 + (file_str[11]&0b11001111); min = (file_str[12] & 0b11001111)* 10 + (file_str[13]&0b11001111);

second = (file_str[14] & 0b11001111)* 10 + (file_str[15]&0b11001111); ds1307_set_date_time(days,month,year,dow,hour,min,second);

file_loc=label_address(time_page);

}

if(file_str[2]=='g') //get time

{ file_loc=label_address(time_page); }

if(file_str[2]=='r') //configuration rtc io

set_rtc_io(on/off , which i/o, hr to on, min to on, hr to off , min to off)

{ set_rtc_io(file_str[3] & 0b11001111, file_str[4] & 0b11001111, (file_str[5] & 0b11001111)* 10 + (file_str[6]&0b11001111), (file_str[7] & 0b11001111)* 10 + (file_str[8]&0b11001111) , (file_str[9] & 0b11001111)* 10 + (file_str[10]&0b11001111) , (file_str[11] & 0b11001111)* 10 + (file_str[12]&0b11001111)); file_loc=label_address(time_page); } }

//for fan if (stricmp(file_str[1],fan[1])==0 ) { if(stricmp(file_str[2],'1')==0) {fan_speed1();} if(stricmp(file_str[2],'2')==0) {fan_speed2();} if(stricmp(file_str[2],'3')==0) {fan_speed3();} if(stricmp(file_str[2],'o')==0) {fan_off();} if(stricmp(file_str[2],'r')==0) {fan_rotate_toggle();} file_loc=label_address(main_page); }

//for magnetic lock if (stricmp(file_str,magneticlock)==0) { toggle_magnetic_lock_state(); file_loc=label_address(main_page); }

//for power socket if (stricmp(file_str[1],powersocket[1])==0 ) { if(stricmp(file_str[2],'1')==0) {toggle_power_socket1_state();} if(stricmp(file_str[2],'2')==0) {toggle_power_socket2_state(); } if(stricmp(file_str[2],'3')==0) {toggle_power_socket3_state();} file_loc=label_address(main_page); }

//for state check if (stricmp(file_str,statecheck)==0 ) { file_loc=label_address(main_page); }

return(file_loc); }

int8 http_format_char(int32 file, char id, char *str, int8 max_ret) { char new_str[50]; int8 len=0;

*str=0;

switch(id) {

case '0': sprintf(new_str,"%2d%2d%2d%3d%d%d%d%d%d%d%d%d%d%d%d%s",hr,min,get_temperature(), get_bulb_brightness(), input_state(speed1), input_state(speed2), input_state(speed3), input_state(rotate), input_state(magnetic_lock_signal),input_state(power_socket_signal1),input_state(power_socket_signal2),input_state(power_socket_signal3),input_state(voice_sensor_signal),input_state(alarm_signal),T,debug); len=strlen(new_str); break;

case '1': sprintf(new_str,"%2d%2d%1d%1d%1d%2d%2d%2d%2d%2d%2d%2d%2d%2d%2d%2d%2d",hr,min,rtc.io0,rtc.io1,rtc.io2,hr_on_io0,min_on_io0,hr_off_io0,min_off_io0,hr_on_io1,min_on_io1,hr_off_io1,min_off_io1,hr_on_io2,min_on_io2,hr_off_io2,min_off_io2); len=strlen(new_str); break; } if (len) { if (len>max_ret) {len=max_ret;} memcpy(str,new_str,len); }

return(len); }

void http_exec_cgi(int32 file, char *key, char *val) {;}

void main(void) {

delay_ms(1000);

rtc_io_init();

power_socket_init();

bulb_dimmer_init();

voice_control_alarm_system_init();

magnetic_lock_init();

temperature_sensor_init();

fan_init();

MACAddrInit();

IPAddrInit();

StackInit();

delay_ms(10);

while(TRUE)

{

StackTask();

}

}

i using port forward technique to connect the microcontroller to internet.

http://portforward.com/

you all can read it. Based on your internet environment, router model, find your way to setup.

As shown i used erthernet cable CAT 5 to transmit signal,

haha, i don't know right or wrong.

But it's work.

Hurrrgh, tired . if good respond I will update let the tutorial more complete.