GSM Modem

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This topic has 1 reply, 2 voices, and was last updated 9 years, 9 months ago by Ashutosh Bhatt.

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July 30, 2015 at 7:27 am #3789

Sharon
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I want the SIM900 to automatically send sms to a number with a predefined text when a particular pin of the microcontroller is turned high . Is it possible using a AT89C51 microcontroller?

July 31, 2015 at 11:05 am #13114

Ashutosh Bhatt
Participant

yes

its very easy

GSM modem communicates through UART with AT89C51

u just follow our tutorials on interfacing GSM modem with AT89C51
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