Hi,
while working on another project i came into the need of calculating the inductance of a custom made inductor so, for didactical purposes, i started this new project of creating an LC meter using arduino.
The software side is not hard, but problem is that im not able to create a sufficient big oscillation to capture its frequency and so calculate the inductance of the Inductor.
I so far tried to send a square wave through a LC tank provoking it to oscillate but the signal mixes with the circuits noise so that at the end i cant distinguish it.
Could someone explain me how to get a big enough oscillation so that it allows me to clearly distinguish it from the background noise? other types of circuit (op amp oscillators etc) i could try?