Post : Make cell phone calls with your Arduino
URL : http://hackaday.com/2012/09/03/make-cell-phone-calls-with-your-arduino/
Posted : September 3, 2012 at 7:17 am
Author : Brian Benchoff
Tags : cellphone, GPRS, gps, gsm
Categories : arduino hacks, cellphones hacks

http://hackadaycom.files.wordpress.com/2012/09/phone.jpg

Cellular shields for the Arduino have been around for ages, but this is the first one (http://www.open-electronics.org/gsm-gps-shield-for-arduino/) we've seen that turns your Arduino into a proper cell phone.

The shield is based around the SIM900 GSM/GPRS (http://store.open-electronics.org/Modules/GSM%20modules/SIM900%20-%20Quad-band%20GSM_GPRS%20module) radio module, and is compatible with the SIM908 GSM/GPRS (http://store.open-electronics.org/Modules/SIM908_GSM_GPRS_GPS) module that adds a GPS receiver. Also on board this shield are a pair of 1/8" audio jacks, perfect for connecting a microphone and headphones. Yes, you can actually make cell phone calls with your Arduino now.

The real star of this build is the new GSM Shield library (http://code.google.com/p/gsm-shield-arduino/) . This library of code includes the methods necessary for an Arduino to function as a cell phone (answer, hang up, dial a number), but also includes a lot of improvements for TCP/IP communication.

Even though the cost of getting an Arduino communicating through a GSM or GPRS network is fairly high, we're thinking this would be the perfect starting point for a completely open source, open hardware cell phone. A phone with the same functionality as an old Nokia brick that is also a MiFy would be an amazing piece of hardware, and would surely make for a profitable Kickstarter.

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