GSM/GPRS & GPS modem with SIM900/SIM908 module
Boris suggests we look at this GSM/GPRS and GSM modem.
A modem GSM & GPRS with SIM900 or SIM908 module. Allows you to create data connections on the GSM network through a standard USB interface. The cellular modems, particularly USB-stick ones, are now at very affordable prices, however they’re limited: they are explicitly designed for Internet connections, so you cannot use it as a normal modem and so implement, for example, a point to point data communications with them. The GSM modems that allow this are quite rare, and so we create and offer you one: it is a device for PC with an USB interface with “voice” functions: there is a jack for a speaker and one for microphone.
You can find the schematic, BOM and other details at the open-electronics.org website.
Via the contact form.
Comments
I’ve just recently played with SIM908C board. My biggest advice – buy active GPS antenna with a long wire, it can be tricky to fix on satellites, when you are not outside the house. For GSM antenna even piece of copper wire works good.
Not sure, if it is permited to post such links here, but here is my test board:
Eagle files:
http://selim13.su/files/sim908c.zip
And photo (the bottom one):
http://img99.imageshack.us/img99/912/img3654v1web.jpg
Use at your own risk =)
Thanks for putting your SIM files 908.
I would like to know which version of the eagle have?
I have a 5.11 and did not open. Thank you.
I would like to help me.
Eagle files: http://selim13.su/files/sim908c.zip
Those files are in new Eagle 6 format. And I have 6.0.0 installed.
awesome !
But I’m looking for the eagle files for sim900 exactly like the 1 which you have posted for sim908c.
As ‘m linking it to arduino uno rev3 board.
I use eagle software.
Thanks in advance :)