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How to interface GSM module with 89s52

mayank kaushik

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.

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  • 0 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.

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  • 0 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.

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