SIM508 microcontroller

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yassin.kraouch

Joined: 05 Jul 2009
Posts: 19
Location: tunisia

19 Jul 2009 20:39 sim508 schematic

hello ,
please help me i need to connect a microcontroller with a GPS/GPRS (the SIM508), i don't know how to connect it please helpe me Sad

thanks

wp100

Joined: 15 May 2009
Posts: 326
Helped: 45
Location: England

19 Jul 2009 21:05 sim508 at command

hi

This thread might help http://www.edaboard.com/ftopic264006.html

yassin.kraouch

Joined: 05 Jul 2009
Posts: 19
Location: tunisia

20 Jul 2009 19:08 schematic sim508

thank you wp100 but i need to connect a SIM508 to a microcontroler,

GSM Man

Joined: 15 Apr 2009
Posts: 357
Helped: 46
Location: New Jersey, USA

25 Jul 2009 3:16 sim508 at+gsm command

The module communicates to your microcontroller using an asynchronous serial communications channel (UART). You just need to connect the SIM508's TX line to your controllers RX line, and the 508's RX line to your controller's TX line.

Commands are sent as stinrgs that start with "AT" and end with a carriage return. You'll need to refer to the "AT Command" manual for details on the commands.

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yassin.kraouch

Joined: 05 Jul 2009
Posts: 19
Location: tunisia

25 Jul 2009 10:25 at command sim508

thanks you GSM Man for the help but there is some pins in the SIM508 that i don't know what to do with it, please if you have picture explain to me how to do it

GSM Man

Joined: 15 Apr 2009
Posts: 357
Helped: 46
Location: New Jersey, USA

25 Jul 2009 12:05 how to connect gprs sim508

I don't have a schematic - which pins don't you know what to do with?

vijay dhiman

Joined: 25 Jul 2009
Posts: 1

25 Jul 2009 12:40 sim 508 schematic

hi i am vijay dhiman from india according to ur question that how i can connect gprs with controller
first of all it depend which micro which u r using if it has gprs port and all the pin which require for gprs u can use some modem example siemens mc55 this is very small portable device.
first of all configure ur controller with device
then initialize ur modem with IGT signal
it should be 500ms pulse width 150 ms high then 350 ms low 500 = 150+350
use at command for connecting gprs even u can use hyperterminal Very Happy

yassin.kraouch

Joined: 05 Jul 2009
Posts: 19
Location: tunisia

26 Jul 2009 9:02 sim508

thank you all but i don't there is two serial line in the GSM part and i don't know how to use it, and in the power consumption i find that the current is Imin=2A and Imax=3.1 A, is it possible for a small device to work with this current??