hi ckshivaram..
my SIM 900 is not working..when i bought it it worked fine when i interfaced it with hyperterminal..then i mistakenly put my controller Tx with SIM900 Tx..now its not working even when i connect it with hyperteminal its hang the hyperteminal...Do'nt know how to fix it..need help if any
When you get sms, in your code discard all messages till you get 1st character as '+' which will be followed by 12 digit phone number. e.g.+91xxxxxxxxxx.
So you read the sender phone number.
Next you can read the message content, by storing it in array or directly read as a string
sir how can we check for start of msg using the same technique i.e what is the last character received to ucontroller before the message body.
and also the delete all command is not working on my gsm module please advice me