Arduino 14: Induction Meter using Parallax LCD and KA393 Comparator
Here’s a small and easy inductance meter made from the Arduino and some other parts. Old TVs are a great source for capacitors, diodes, and even some chips: I found this handy dual lowvoltage single-supply comparator in one. The inductance meter schematic and basic program sketch were found here: reibot.org/2011/07/19/measuring-inductance/ along with a good explanation of the operation of the circuit. Thanks, Moser ! My program sketch is just the same as Moser’s except for the LCD readout part and the pin assignment. My program sketch can be downloaded at: www.mediafire.com