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as i explain when an external antenna has disconnect by user the internal antenna activaced .....
yes both internal and external are active antenna...
can u expalin how gaAs work?
it would be very good if you give me a circiut of this switch...tnx
i want to connect 2 gps antenna to sim908,one internal and one external antenna so that if external antenna has been disconnected the internal would replace it
can u please help me with designing of the circiut
i have problem with sim908
when i try to connect by gprs and also try to use gps,
sim908 will reconnect and gps willbe off
i use someat to power on gps inside my code but it will reset the module and it doesnt work
please help me
tnx
Hello everyone. I'm working with a sim900 and try to send a SMS and it work properly. But when I try to read a SMS, I just can get two character of SMS text and then <LF> is received from module. I receive Other SMS features properly before SMS text, such as sender SIM num, SMS sending time...
i want to design a circute:
my idea is when i send sms by a mobile to sim 900 so this module with some avr program can start a motor or turn on/off a light
can any one help me?
tnx
i want to build a hardware can u help me?
i want to build some thing that when i sms the gsm,it open a door or start a engine
plz help me
im student
i really need ur help
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