Raspberry Pi has been touting the use of its microcomputer unit to build a fully-functioning mobile phone named the PiPhone, pictured above.
The project is the brainchild of a Linux software engineer called David Hunt who explained on his website that the entire unit cost just $158 to assemble using basic components picked up online.
"It makes use an Adafruit touchscreen interface and a Sim900 GSM/GPRS module to make phone calls. It's more of a proof of concept to see what could be done with a relatively small form factor with off-the-shelf (cheap) components," he wrote.
Despite the low cost the use of the Sim allows the device to make calls and send text messages like a normal unit.
The other components include a 2.8in 320x240 TFT LCD display from Adafruit for $35, a 2,500mAh battery for $15. It is powered by the Raspberry Pi Model B unit, which costs around $40.
"As you can see from the cost of the components, you'd be far better off going into your local phone store and picking up a normal smartphone, but hey, where's the fun in that," Hunt added.
"I got a great kick out of the first phone call I made with this thing. And it wont's stay in one piece for long, I'll be using those parts for other projects very soon!"
Promoting the device to the wider Raspberry Pi community, head of communications at Raspberry Pi, Liz Upton, said the project was an excellent way to avoid being sucked into the ecosystems of the major phone giants, and have some fun at the same time.
"For those of you who do not want your phones crammed with Apple, Google or Microsoft software, or who want the satisfaction of making one yourself, this is the perfect project," she wrote.
A video of the PiPhone in action is embedded below.
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