And it wont’s stay in one piece for long, I’ll be using those parts for other projects very soon! All the instructions are there, and links on what to do to install the Pi TFT, etc.
–update Nov 2016 — Touch Screen Issue Solution– I’ve had a few reports of the touchscreen not working.
Also, the 6 pin header on the GSM module sticks out a bit, so I though about de-soldering the header and soldering the wires directly onto the PCB.
Thanks to Dong Hyun Lee from Malasya that found a solution in his case, which was down to the version of Py Game provided with Rasbian Jessie.
Later versions of SDL (pygame) such as 2.x or 1.2.15-10 have some serious incompatibilities with touchscreens in a pygame app. When I wrote this article, I was using Raspbian Wheezy, whereas users now are probably using Raspbian Jessie.
I don’t expect everyone to be rushing out to build this one, but I had great fun in doing it, as it builds quite nicely on my previous projects, especially the Lapse Pi, a touchscreen time-lapse controller, and uses most of the same hardware.
What makes this different from the Timelapse controller is the addition of a a SIM900 GSM module, which is connected via UART to the Raspberry Pi.
Here’s my latest DIY project, a smartphone based on a Raspberry Pi. 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.
I presented this to my local FAb Lab the night before the publication of this blog article, and one question from the audience stood out: “Do you have to pay for credit? That certainly made me think, and we had a good giggle at that. 🙂 Costs: 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.
Yes, you still have to pay for credit in the usual way, purchase a SIM card from a local service provider. I got a great kick out of the first phone call I made with this thing.
The crowd responses filmed by a band member  certainly gave the impression of an enthusiastic audience to the band’s aurally-decimating experience.
 I asked if there were any qualms playing ‘In the Constellation of the Black Widow’, a song which deals with the atrocity of the atomic bombs dropped on Hiroshima and Nagasaki.
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