Creator and Hack A Day user Max K explains a little more about the Arduino-based 3D printed smartwatch. After assembling the third revision of the watch, I decided to test its battery life.

Posted in Misc Hacks Tagged 3D printed case, 4066, 555, bat detector, bats, heterodyne, MCP6002, MEMS microphones, nature. Get The Party Started With A Mesh WiFi Light Show.

Arduino powered and 3D printed, this robot translates to sign language Written by Greg Nichols, Contributing Writer Aug. 25, 2017 at 7:16 a.m. PT Sign language translators are scarce.

The 3D printed version has been created to make the design available to more people and uses an Arduino Uno development Board together with a piezo sensor for the drum.