[Tyler Bletsch] sent us a tip about his new build: a keyboard that redefines “coin-operated.” The Nickelphone can emit square wave tones via a piezo buzzer, but [Tyler] made this 25-key piano as a ...

A lot of consumer gadgets use touch sensors now. It is a cheap and reliable way to replace a variety of knobs and switches on everything from headphones to automobiles. However, creating a custom ...

Renesas’ RL78/L23 16-bit MCUs provide segment LCD control and capacitive touch sensing for responsive HMIs in smart home appliances, consumer electronics, and metering systems. Running at 32 MHz, ...

This module allows the user to wire up an Arduino to any conductive interface (fruits, cans, ect.) and play sounds using that interface. It can be used to create sounds in an integrated system or ...

You can’t have a touch sensitive switch without a way to detect the presence of a finger! A touch sensor, especially a capacitive touch sensor, has some surprisingly sophisticated electronics to ...