You need to measure inductance but you don't have any multimeter to do that or not even an osciloscope to observe the ...
There are aleready a lot of dedicated sensors to measure current - such as the Allegro Microsystems ACS712 (as used in m...
Capacitance is a measure of the ability of "something" to store electrical charge. Arduino capacitance meter relies on t...
We will build a multimeter step by step. We will see all the parts separately and finally we'll join everything together...