How to mount capacitive touch senzor on I2C?

I got this capacitive touch senzor:

I want to chain 2 or 3 of them to command my Robocat purring (to imitate the petting action).

I want then the sensors on I2C.

I could not find touch sensors made for I2C (at least not decently priced).

Thank you for pointing a module to communicate with touch sensors on I2C!

To connect a capacitive touch sensor to I2C you need something that reads the sensor, then outputs the result on an I2C bus. Something like an Arduino, or the ATMega that comes with it.You may be able to do it cheaper using an ATtiny, if they can act as I2C client (I don't know, up to you to figure that one out).

I have an Arduino UNO, but the sensor is not equiped for I2C, only has a standard out pin.

Do you mean I can mount an ATtiny like a sort of converter?

Let me just quote myself as it seems you missed (part of) this:

wvmarle:
You may be able to do it cheaper using an ATtiny, if they can act as I2C client (I don't know, up to you to figure that one out).