Capacitive Sensing for Dummies : 7 Steps - Instructables
Capacitive Touch Switch Button RGB Multi Color LED Sensor Module 2017 New DIY Electronic HTTM|diy electronic|electronic diyelectronic module - AliExpress
NerdKits - Capacitive Touch Sensor: Learn Electronics with a Spooky Halloween Project
Put your finger on it: capacitive touch switching | Electrical Engineering News and Products
Capacitive and Metallic Touch sensor interfacing with arduino uno