Raspberry Pi Projects Raspberry Pi Pico W Projects

Home Automation With Raspberry Pi Pico W

Prateek 08/12/2022

0 2,804 2 minutes read

Table of Contents

Introduction

Hi Welcome To Our Website www.justdoelectronics.com, In This Blog, I will Explain Raspberry Pi Pico Based Home Automation. You Used Any Pico Module Like Raspberry Pi Pico Or Raspberry Pi Pico W.Both one is the Same Just Different The Wifi module Raspberry Pi Pico W is on Board Wifi Module.

If You Don’t Know Much More About To Raspberry Pi Pico W Then Plz Watch The Blog Fist Click Here

In This Project, I just used the Raspberry Pi Pico W Module, GSM Sim800l Module,2 Channel Module,3.7v Battery, Zero PCB And AC Load.

Our Project is working On the GSM(Global System for Mobile communication) When You Send a Text Message To Gsm Module SIM(Subscriber Identity Module) Card I Mean You Just Type LIGHT ON and send the GSM Module Received The Message And Turn On The LIGHT Relay If you Send Text Message To Again LIGHT OFF Gsm Module Received the Message And Turn Off The LIGHT Relay.

The same Conduction applies In A FAN Also You Type the Text Message FAN ON And Send GSM Received Message And Turn ON the Fan Relay you Type The Text Message FAN OFF And Send The GSM REcived Message And Turn Off The Fan Relay.

Raspberry Pi Pico W Pin Diagram:-

Bill of Materials

S.N	Component Name	Quanitity	Link To Buy
1	Raspberry Pi Pico W	1
2	GSM Sim800l	1
3	2 Channel Relay Module	1
4	3.7 V Battery	1
5	Zero PCB	1
6	AC Fan	1

Components

These All Are the component which I used In this Project.

Wesolderingg All Thecomponentst in This Zero PCB Like Raspberry Pi Pico , GSM Sim800l Module And Relay Modul.

Circuit Diagram

File 1

PCB Design

Here I Design The Pcb Using EasyEda Software, We just Put the Images Like Front Images of PCB, Back Images PCB,2D Images PCB And 3D Images of the PCB.

File 2

File 5

File 3

File 4

Source Code / Program

from machine import UART, Pin


gsm_module = UART(1, baudrate=9600, tx=Pin(4), rx=Pin(5), timeout=2000)
gsm_buffer = ''


destination_phone = '+918830584864'


relay1 = Pin(2, Pin.OUT)
relay2 = Pin(3, Pin.OUT)

def convert_to_string(buf):
    tt =  buf.decode('utf-8').strip()
    return tt

def do_action(msg):
    msg = msg.lower()
    if(msg.strip() == 'light off'):
        relay1(0)
        send_sms('light is OFF')
    elif(msg.strip() == "light on"):
        relay1(1)
        send_sms('light is ON')
    elif(msg.strip() == 'fan off'):
        relay2(0)
        send_sms('fan is OFF')
    elif(msg.strip() == 'fan on'):
        print('do_action1: '+msg)
        relay2(1)
        send_sms('fan is ON')
def send_command(cmdstr, lines=1, msgtext=None):
    global gsm_buffer
    print(cmdstr)
    cmdstr = cmdstr+'\r\n'
    
    while gsm_module.any():
        gsm_module.read()
    
    gsm_module.write(cmdstr)
    
    if msgtext:
        print(msgtext)
        gsm_module.write(msgtext)
 
    buf=gsm_module.readline() 
    buf=gsm_module.readline()
    if not buf:
        return None
    result = convert_to_string(buf)
    
    if lines>1:
        gsm_buffer = ''
        for i in range(lines-1):
            buf=gsm_module.readline()
            if not buf:
                return result
            buf = convert_to_string(buf)
            if not buf == '' and not buf == 'OK':
                gsm_buffer += buf+'\n'
    
    return result
def read_sms(sms_id):
    result = send_command('AT+CMGR={}\n'.format(sms_id),99)
    print(result)
    
    if result:
        params=result.split(',')
        if params[0] == '':
           return None
        
        params2 = params[0].split(':')
        if not params2[0]=='+CMGR':
            return None
        
        number = params[1].replace('"',' ').strip()
        date   = params[3].replace('"',' ').strip()
        time   = params[4].replace('"',' ').strip()
        #print('gsm_buffer:'+gsm_buffer)
        return  [number,date,time,gsm_buffer]
      
def send_sms(msgtext):
    global gsm_buffer
    result = send_command('AT+CMGS="{}"\n'.format(destination_phone),99,msgtext+'\x1A')
    if result and result=='>' and gsm_buffer:
        params = gsm_buffer.split(':')
        if params[0]=='+CUSD' or params[0] == '+CMGS':
            print('OK')
            return 'OK'
    print('ERROR')
    return 'ERROR'
print(send_command('AT'))
print(send_command('AT+CMGF=1'))
print(send_command('AT+CNMI=1'))

while True:
    if gsm_module.any():
        buf=gsm_module.readline()
        buf = convert_to_string(buf)
        print(buf)
        
        params=buf.split(',')
      
        if params[0][0:5] == "+CMTI":
            msgid = int(params[1])
            msg_data = read_sms(msgid)
            
            if not msg_data:
                print("No sms data found.")
                break
          
            print(msg_data[3])
            
            if not msg_data[0] == destination_phone:
                print("Destination phone pumber not matching")
                break
           
            do_action(msg_data[3])

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from machine import UART, Pin

gsm_module = UART(1, baudrate=9600, tx=Pin(4), rx=Pin(5), timeout=2000)

gsm_buffer = ''

destination_phone = '+918830584864'

relay1 = Pin(2, Pin.OUT)

relay2 = Pin(3, Pin.OUT)

def convert_to_string(buf):

tt = buf.decode('utf-8').strip()

return tt

def do_action(msg):

msg = msg.lower()

if(msg.strip() == 'light off'):

relay1(0)

send_sms('light is OFF')

elif(msg.strip() == "light on"):

relay1(1)

send_sms('light is ON')

elif(msg.strip() == 'fan off'):

relay2(0)

send_sms('fan is OFF')

elif(msg.strip() == 'fan on'):

print('do_action1: '+msg)

relay2(1)

send_sms('fan is ON')

def send_command(cmdstr, lines=1, msgtext=None):

global gsm_buffer

print(cmdstr)

cmdstr = cmdstr+'\r\n'

while gsm_module.any():

gsm_module.read()

gsm_module.write(cmdstr)

if msgtext:

print(msgtext)

gsm_module.write(msgtext)

buf=gsm_module.readline()

if not buf:

return None

result = convert_to_string(buf)

if lines>1:

gsm_buffer = ''

for i in range(lines-1):

buf=gsm_module.readline()

if not buf:

return result

buf = convert_to_string(buf)

if not buf == '' and not buf == 'OK':

gsm_buffer += buf+'\n'

return result

def read_sms(sms_id):

result = send_command('AT+CMGR={}\n'.format(sms_id),99)

print(result)

if result:

params=result.split(',')

if params[0] == '':

return None

params2 = params[0].split(':')

if not params2[0]=='+CMGR':

return None

number = params[1].replace('"',' ').strip()

date = params[3].replace('"',' ').strip()

time = params[4].replace('"',' ').strip()

#print('gsm_buffer:'+gsm_buffer)

return [number,date,time,gsm_buffer]

def send_sms(msgtext):

global gsm_buffer

result = send_command('AT+CMGS="{}"\n'.format(destination_phone),99,msgtext+'\x1A')

if result and result=='>' and gsm_buffer:

params = gsm_buffer.split(':')

if params[0]=='+CUSD' or params[0] == '+CMGS':

print('OK')

return 'OK'

print('ERROR')

return 'ERROR'

print(send_command('AT'))

print(send_command('AT+CMGF=1'))

print(send_command('AT+CNMI=1'))

while True:

if gsm_module.any():

buf=gsm_module.readline()

buf = convert_to_string(buf)

print(buf)

params=buf.split(',')

if params[0][0:5] == "+CMTI":

msgid = int(params[1])

msg_data = read_sms(msgid)

if not msg_data:

print("No sms data found.")

break

print(msg_data[3])

if not msg_data[0] == destination_phone:

print("Destination phone pumber not matching")

break

do_action(msg_data[3])

Here You Just Change The Mobile Number

destination_phone = '+918830584864'

1	destination_phone = '+918830584864'

If you Want to Change the Message Format You just Change It here.

    msg = msg.lower()
    if(msg.strip() == 'light off'):
        relay1(0)
        send_sms('light is OFF')
    elif(msg.strip() == "light on"):
        relay1(1)
        send_sms('light is ON')
    elif(msg.strip() == 'fan off'):
        relay2(0)
        send_sms('fan is OFF')
    elif(msg.strip() == 'fan on'):
        print('do_action1: '+msg)
        relay2(1)
        send_sms('fan is ON')