This BLTouch Sensor is the recent Smart V2.0 model, which includes a range of exciting improvements that help boost printing quality and ease-of-use.
Pulse Sensor is a plug-and-play heart-rate sensor for Arduino. It can be used by students, artists, makers, and developers who want to integrate live heart-rate data into their projects.
Tiny touch sensitive button module for replacing traditional mechanical touch switches. Uses the TTP223 touch sensor IC