how Send SMS to multiple recipients using Arduino & gsm module. when button press send message to multiple recipients.
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You may be able to set each number you are sending to as individual strings however i don't know what libraries/hardware you are using so you'll have to be more specific I'm afraid.
Sam Briggs
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i am using arduino uno and sim900A module. i able to send message witone mobile no. but how Send SMS to multiple recipients. – user6905616 Oct 08 '16 at 06:47
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i am using arduino uno and gsm module SIM900A – user6905616 Oct 27 '16 at 15:49
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i am using arduino uno and gsm module SIM900A – user6905616 Oct 27 '16 at 15:50