capacitive touch sensor for raspberry pi?

Question

Raspberry Pi

Greetings, dear ones!
There is a model B raspberry (26 pins), it is required to make an information stand, which, when touched, would play mp3 files, and the sensors must work through a PVC sheet (or some other plastic, I'm not sure exactly) about 3mm thick. Googling led me to the conclusion that a capacitive sensor is suitable for this. I found modules on the network only for 40 pins, but I didn’t see them for model B.
What is the best way to implement something like this? Point to the true path. Links to any information (similar modules on sale, on the software side, and maybe even diagrams) on this issue are welcome.
Thanks in advance to those who respond.

Answer 1

If you know how to solder, then you can take the touch button controller AT42QT1012-TSHR. It costs 90 rubles, the strapping is a conder and a triple of resistors. It also works through 5-6 mm plastic or plywood.