Sometimes after powering up the module, after getting registered on the network, the network LED starts flashing as if there is no network found, and also I cannot make any calls or sms during these time.
But after restarting the module, everything works fine.
I have used 12V 7A battery for powering the module.
I am not able to find the problem, please guide me.
The SIM900 is a complete Quad-band GSM/GPRS solution in a SMT module which can be embedded in the customer applications. Featuring an industry-standard interface, the SIM900 delivers GSM/GPRS 850/900/1800/1900MHz performance for voice, SMS, Data, and Fax in a small form factor and (https://roadrunneremail.org/) with low power consumption. With a tiny configuration of 24mm x 24mm x 3 mm, SIM900 can fit almost all the space requirements in your M2M application, especially for slim and compact demand of design.
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5 weeks ago
Sometimes after powering up the module,
after getting registered on the network, the network LED starts flashing
as if there is no network found, and also I cannot make any calls or
sms during these time.
But after restarting the module, everything works fine.
I have used 12V 7A battery for powering the module.
I am not able to find the problem, please guide me.
5 weeks ago
I google "SIM800 TTL" and basically the first hit:
5 weeks ago
The
SIM900 is a complete Quad-band GSM/GPRS solution in a SMT module which
can be embedded in the customer applications. Featuring an
industry-standard interface, the SIM900 delivers GSM/GPRS
850/900/1800/1900MHz performance for voice, SMS, Data, and Fax in a
small form factor and (https://roadrunneremail.org/) with low power consumption. With a tiny
configuration of 24mm x 24mm x 3 mm, SIM900 can fit almost all the space
requirements in your M2M application, especially for slim and compact
demand of design.