Small gps gsm cat tracker live

I would like to macke a gps tracker for my cat so I can phone him and find whare he is.

I am a bit of a novice and was wandering if some one would be able to help me and posibly write the code.

Also dose any one know how much this is likely to cost. I was planing on using a audrino tinsy.

Let's start at the beginning. Which GSM / GPS device are you planning to use? And more importantly, how are you going to power it? And I mean part numbers, not vague descriptions.

Not shore the smallest and most cost effective

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This is a great project to learn how to get a few components together and talking to each other.

Making it small enough for a cat to carry is a huge challenge. You're going to need custom PCBs, a waterproof case and a whole lot of other stuff.

Not to mention that cats are very good at removing collars that they don't like. The only bright thing is there's a 50% chance it will be dropped somewhere that has cell signal and you can find it and get it back.