Adafruit capacitive touch hat for raspberry pi a b pi 2 adafruit 2340 a b capacitive touch b hat that works with the b raspberry pi b models a b and pi 2 the hat has 12x capacitive touch sensors that are broken out to figure 8 board connections that can be connected via crocodile clips and wire to an electrically conductive e g metal object or water filled e g vegetables fruit object making it possible to create practical and fun controllers for a wide range of projects