Jodhpur have developed a new low-cost mobile tool to detect arsenic contamination in water sources, addressing a critical ...

He suspected EMF interference so as a quick first step he decided to throw together an EMF detector using an Arduino. It uses a bank of LEDs as an indicator bar to reflect the EMF picked up by the ...

[Edward], creator of the Cave Pearl project, an underwater data ... these sensors are cheap and readily available. This isn’t about connecting a temperature sensor in your Arduino.