GSM shield

Projects Networking, Protocols, and Devices
1

Hi,
we make a very low cost and simple Arduino GSM and GPRS shield.

We use the module SIMCom SIM900. It’s the cheaper module now avalaible in the market.
We performed a GSM library to controll easly the module. The GSM library is a modified version of the library of HWKitchen.
With our version we controll the module throw the pin 4 and 5 (so normal digital pin) and our GSM libray include also the NewSoftSerial, so you can easy control the module, send and read SMS, make call, control the GSM state ecc.

In Arduino GSM shield - Open Electronics - Open Electronics you find library, schematics, PCB and examples.

2

It costs more than a full cellphone with keyboard and screen.

3

Hi jumpjack
As you know all the device embedded like bluetooth, wifi are more expensive. The SIM900 “now” is the cheaper module.

4

It would be amazing to see a shield based on this device (25$):
http://www.dealextreme.com/p/usb-tri-band-gprs-modem-cell-phone-radio-gsm-900-1800-1900mhz-12057

and this project:

Is that possible?

5

Oh yes.
I don't know what kind of module use this device. But it's a commercial device. So the number are very very high. If you buy one piece of SIM900 you can buy it less than $20... But if you make a commercial device (about 10000 pieces) the prices fall down (I think) $)

My shield it's no a commercial device. Futura Elettronica sell the breakboard a 60 Euros. The prices is for one piece, with sim holder, with RF connector, with antenna and mounted. I think that this board is cheaper than other shield, but could be that there are other solution... I hope... So I can use it :wink:

I'm developing a gsm remote control totaly open source (arduino based) that using the Futura Elettronica breakboard. I'll present it on www.open-electronics.org in about a week.

6

A lot of people are working on GSM shield by Open-Electronics.org, if some one want contribute please uses Google Code Archive - Long-term storage for Google Code Project Hosting.