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 ...

the sensor will detect a drop in light intensity and subsequently activate the buzzer. The alarm only stops when you press ...

The micro-lab uses the Berthelot reaction, which detects ammonia through a color change. Instead of the traditional toxic ...

hacked it in with an Arduino. The video does a wonderful job going into the details, but essentially by using an oxygen sensor with finer resolution (wide-band) and then outputting the appropriate ...