Press
Last update: May 2026
Georgia Tech News: Batteries Not Included, or Required, for These Smart Home Sensors
Interesting Engineering: New passive ultrasonic sensors track motion without electricity or batteries
New Atlas: Ingenious unpowered sensor detects motion by generating ultrasound
Hackster.io: Replace Microcontrollers with Metal Washers for a Better Smart Home
Futurity: Battery-free smart home sensors are smaller than a penny
Digital Trends: These battery-free tags cost a few cents and are perfect for smart home sensing
TechRadar: Battery-free, quiet, and inherently private
XDA Developers: coin-sized-sensors-could-eliminate-smart-home-batteries-forever TechXplore: These penny-size ultrasonic tags ditch batteries and silently turn everyday objects into private smart home trackers
The Engineering: bistable-design-enables-self-assembly-in-seconds
Yanko Design: Trouble Maker Truth or Dare Game Generator spews out unique, crazy questions and tasks
Arduino.cc: Trouble Maker is an Arduino-based game-gadget that generates random prompts for truth or dare using a Markov chain
Yanko Design: Kitchen timer that can be set with dirty hands and no touching!