SparkFun Capacitive Touch Breakout - AT42QT1010 Capacitive, Sparkfun Originals Contemporary & Designer It works for any 49mm

It works for any 49mm threaded lenses and more lenses under similar type and ranges

1x 52mm Orange Filter

the user has full access to a switch underneath

Bulb holder is easy to install or remove

connect 4 digital outputs to the chip’s address select pins (S0-S3)

SparkFun Capacitive Touch Breakout - AT42QT1010 Capacitive, Sparkfun Originals Contemporary & Designer It works for any 49mmIf you need to add user input without using a button, then a capacitive touch interface might be the answer. The AT42QT1010 SparkFun Capacitive Touch Breakout offers a single capacitive touch button with easy to use digital I O pins. The AT42QT1010 is a dedicated, single button capacitive sense chip. The chip handles monitoring a conductive area for touch. As long as a touch (e. g. from a finger) is detected, the AT42QT1010 keeps the output line high.