Hi
I want to build a system contain sensor ,Microcontroller and GSM module. I'll use SIM900 GSM module. The main idea of this project if Reed switch sensor connected I want the GSM module send an alarm message to a mobile.
Can you help how I can do this?? some steps and hints. For GSM module I read about AT commands and I knew I must desire if I want it receiver or sender.
Any suggestions it's will be better. Thank you
Give a link!
My child has better manners than you! If he spoke like that to me he'd not even wait for me to tell him to go sit on the naughty step!
Find wonkypedia for the article.