This afternoon, I spent a few hours to build a SIM card reader. I bought this kit from Adafruit Industries awhile ago. It came with a good looking comic book.
I cannot remember when was the last time I actually soldered anything together but I found it rather easy. It was little difficult to solder a SIM card holder onto a PCB, but everything else went well.
Here is a picture of my new creation.
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Cool. But what is it used for? I guess your answer could be reader of SIM card
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