Electronics Projects, PIC16F628 LC meter circuit article
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LC meter circuit made with 16F628 microcontroller can be used to measure the inductor and capacitor values.
Despite its modest cost, it offers automatic direct digital measurement over a wide range for both capacitance (C) and inductance (L) with 4-digit resolution. In fact, it measures capacitance from just 0.1pF up to 800nF and inductance from 10nH to 70mH. Measurement accuracy is also surprisingly good, at better than ±1% of reading
It also operates from 9-12V DC, drawing an average current of less than 20mA. This means that it can be powered from either a 9V alkaline battery inside the case or from an external plugpack supply
LCD Display LC meter circuit
LC meter circuit PCB schematic pic16f628 pic assembly source code alternative link: pic16f628-lc-meter-circuit.RAR alternative link2 alternative link3