Keil forum How to interface GSM module with 89s52

State Not Answered
Locked Locked
Replies 13 replies
Subscribers 22 subscribers
Views 3179 views
Users 0 members are here

Options

Related

How was your experience today?

This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

How to interface GSM module with 89s52

mayank kaushik over 12 years ago

I am able to connect my sim900 gsm module with hyper terminal but I am not able to connect it with 89s52. Please help me to connect it.

Parents

0 ²erik malund over 12 years ago

then you need

micro <-> MAX232(equivalent) <-> GSM module
Cancel
Vote up 0 Vote down

Cancel

Reply

0 ²erik malund over 12 years ago

then you need

micro <-> MAX232(equivalent) <-> GSM module
Cancel
Vote up 0 Vote down

Cancel

Children

0 mayank kaushik over 12 years ago in reply to ²erik malund

I did this but not works.Pls check my program i added before and help.
Cancel
Vote up 0 Vote down

Cancel
0 Westonsupermare Pier over 12 years ago in reply to mayank kaushik

As pointed out by several posters your program fails to be attentive to if the modem responds with OK/ERROR to commands sent, and blindly ploughs forward. Suggest you try something simpler, and with a scope or analyzer, and confirm if the modem is responsive to some basic AT commands (ie one where it can respond immediately, and doesn't depend on carrier or SIM)

Get better at debugging so you can solve your own problems.
Cancel
Vote up 0 Vote down

Cancel
0 Andy Neil over 12 years ago in reply to mayank kaushik

So maybe you did it wrong?

Again: what debugging (including hardware debugging) have you done?
Cancel
Vote up 0 Vote down

Cancel