PCB board for keypad

[teckink]

I'm new here, and curious where I can get my hands on a specific type of PCB board. Il cut straight to it

Im trying to find a small PCB board not much bigger than size of a flash drive that logs keystrokes from a regular 3x4 matrix keypad. It has to run on a battery 3.7V. The memory, can be a microSD or on board around 1mb or more.  If its microSD the data can be transfers to PC easily, if its on board it will require USB port to transfer the data logs as .txt or excel.

How would someone go about getting one of these? I don't have any coding or programing experience and I can't make boards. Is it possible to rip something off the market and put it together?

I see a lot of small gadgets that are much more complex with cameras, GPS, gyrescope, temperature loggers, they are all cheap and available, but I can't find anything as primitive as a PCB recording keystrokes running on a battery.

[kam]

... and most likely you won't find one. Commercial kits are addressed to a wide range of customers. Who would want a keylogger for a matrix keyboard? Plus there are several issues with this device in terms of connection and interface... Not very likely to find one.

[teckink]

I just want to make my own flash-drives that have a security number to prevent unauthorized personnel from opening the thumb drive. But I need a few of these for other people and if they forget their password, I can always open up the device pull out the SD and recover files. This is why its separate of the flash drive. 

Its not like something I am doing to pass time, so maybe that's why it doesn't fit in that catagory. Even tho its a a pretty basic function.

[cheerio]

just use truecrypt? only thin is... hard to get the stuff when the pw is lost.