I dug around in my parts bin and salvaged some materials from the dumpster to make a self portrait that reflects on people and ideas that have impacted me or been on my mind this past year. You might call it a meta-self portrait as it is essentially a glorified…

For an easy DIY metal detector setup, look no further than this project by creator “rgco.” 



The handheld device uses a 20-60 turn coil of 26AWG enameled wire, connected across an Arduino Uno or Nano’s pins 8 and 10. A series of pulses is continuously sent…

Minimal Arduino Metal Detector: With an Arduino, 10m of wire and a 100 Ohm resistor you can build a metal detector in 10 minutes! It is based on sound physics and works for a large range of coil sizes and shapes. The sensitivity is not enough for treasure…