http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. Thu, 20 Nov 2008 19:54:23 -0800 http://backend.userland.com/rss092 hello i am a student and i have a project to do with stk500 and gsm modem (siemens mc35).i have connected the gsm modem with avr. i use printf to send <noauthor@nospam.com> http://www.8051projects.net/forum-t9578.html u will have to stop the echo first"ATE0\r\n"now if using scanf(), why r u using delay_ms(10) ??no need at all..and the syntax for sms should shyam<shyam@nospam.com> http://www.8051projects.net/forum-t9578.html u said that the mesaage is NULL... does that mean u not recving message ?? or u recving msg with nothing to display?? shyam<shyam@nospam.com> http://www.8051projects.net/forum-t9578.html the gsm modem doesn't accept the \" it works with out that. i try your code but i have the same problems the message is null. why???please help m agnostos<d_agnostos@nospam.com> http://www.8051projects.net/forum-t9578.html i am afraid that my connection is error. i bought a null modem cable. and it is female in both sides. and i connect null modem. with this waynull mode agnostos<d_agnostos@nospam.com> http://www.8051projects.net/forum-t9578.html See,what you need to do is connect Tx of modem to Rx of AVR and Rx of modem to Tx of AVR.(and both their grounds as well)Check your null modem cable.. sashijoseph<sashijoseph@nospam.com> http://www.8051projects.net/forum-t9578.html guys can u tell me how to recive area notification of gsm area onto a microprocessor trinadha<trinadha_raju@nospam.com> http://www.8051projects.net/forum-t9578.html Hi,receiving SMS will give first unsolicited SM indication with message index no.first use AT+CNMI=2,1,0,0,0 which will give you unsolicited indicati Shailesh NAYAK<nayaktel@nospam.com> http://www.8051projects.net/forum-t9578.html