i am doing embedded project and it was home automation using 8051 microcontroller through sms.how can i send sms from my mobile to gsm modem without pc? give me some ideas
So why have you chosen 'ARM' as the toolset?!
"how can i send sms from my mobile to gsm modem"
How do you think that sending an SMS to a GSM modem would be any different from sending an SMS to any other GSM Device - such as a phone??
"give me some ideas"
This is a very common project indeed, and there are very many examples of it all over the internet - a little googling should give you plenty of ideas!
The first idea that I can come up with involves you studying the problem thoroughly first and coming here with concrete questions rather than with a "do it for me" plea...