We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
Hi!!
I am doing a project based on gsm.Here i need to interface microcontroller at89c52 with gsm modem.I am using a sim300 modem.Main objective is to send sms using gsm by providing AT commands from microcontroller.sim300 responds properly when AT commands are given from hyperterminal, but it doesnt respond when i send the AT commands serially from microcontroller.I am not able to figure out where i have gone wrong. I have connected uc and gsm using MAX232. can someone please help me out to interface microcontroller and gsm?
Andy,
I stand corrected. Obviously this has been dealt with numerous times before. My point was that he cannot just send the 'AT' and expect a response.