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i am testig with micro controller. the power supply seems not to have problem. i use a switching 3A sullpy that i have tested it under 3.5A. sim card is also connected good. is there any special point in connecting the sim card?
hi,
i have a problem driving sim900. whenever i turn it on the status and net leds turn on. after some seconds the net light starts to blinking and the status led turns off. after some blinking of the net led, it turns off and the ri led turns on and star on until i turn off the board!
hi,
i have a problem using sim900. the problem is that when i turn it on, the net led starts to blink, after 4 to 6 blinks, both net and stat leds turn off and again starts after 1 second. this continues till i turn off the power!!
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