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How to interface Reed Switch sensor with 8051 Microcontroller?

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

Parents
  • Are you sure you have the basic knowledge for this project?

    There is nothing magic with reed switches - they are switches, so are interfaced like normal switches.

    And yes - to do anything with a GSM module you really do need to learn how to send and interpret the "AT" language the modules are using.

Reply
  • Are you sure you have the basic knowledge for this project?

    There is nothing magic with reed switches - they are switches, so are interfaced like normal switches.

    And yes - to do anything with a GSM module you really do need to learn how to send and interpret the "AT" language the modules are using.

Children