receiving sms from GSM MODEM to control a stepper motor byAT89c51

[ochan joseph]

hello friends is it possible to program AT89C51 to receive a particular type of an SMS from modem connected to its serial port to drive a motor interfaced with ULN 2003,and how?

[Dexter]

yes

use at command for the coding

send the command through serial port

AT+CMGF=1

AT+CMGW=”+919789422489″
> I AM AN INDIAN(SAMPLE SMS).                                      

AT+CMSS=1
 

[ochan joseph]

thanks dear,

but what i mean is, can i program it to ingone other types of SMS that are sent  apart from  one SMS that is in aparticular format to switch the motor  ON

[Syed Aameer]

type some text for Eg.Motor On and send the message to GSM module

 

from microcntroller you read the message

AT+CMGF=1 <enter>

AT+ CMGD=1 //delete the 1st message

 

For new SMS, URC will be received
on the screen as +CMTI: SM ‘no’.  //in this case 1

 after that read the first message

AT+CMGR= 1<integer number where message is stored in Inbox>

check for Motor On text. if it is present then switch on the motor else dont.

 

Like this you can control many devices

 

Aamir

 

[Ekwunife Dozie]

I love this platform. Keep the flag flying.

[ochan joseph]

hello friends still need your help.

i want store a defualt phone number for controlling the stepper motor in the eeprom, then use this number for verifying any other number used to sent sms,my question is how can i store the number,write this interrupt,check the incoming sms to extract its phone number,if valued run the motor using c and atmega 32.or help me with sample code in this format to email

[email protected]

thanks

[abhishek]

Design a function in c & store u’r default number .

 

call that function when u need it 

 

[kunal kashalkar]

hi,

i want to send & receive sms using sim300 & arduino, in that i got success in sending sms, but unable to display received sms by sim300 from other gsm module using arduino program,

please help me.

[kishan]

i want to circuit diagram and report of “motor control by gsm”

plz help any one

[Anonymous]

please can i get the code on how to control a stepper motor using SMS.

I'd like to run the code and see the outcome. Thank you

[Anonymous]

can you please email me the code for controlling a stepper motor via SMS.

my email is [email protected]

Thank you

[Author]

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