Summary of PIC16F628 LC METER CIRCUIT
This article describes an LC meter using a PIC16F628 microcontroller that measures capacitance (0.1 pF–800 nF) and inductance (10 nH–70 mH) with 4-digit resolution and better than ±1% accuracy. It runs from 9–12 V DC, draws under 20 mA, and can be battery- or plugpack-powered. The project includes an LCD display, PCB, schematic and PIC assembly source code, with download links provided.
Parts used in the PIC16F628 LC meter:
- PIC16F628 microcontroller
- LCD display (4-digit or character LCD as used in article)
- 9V alkaline battery or 9–12V DC supply
- Voltage regulator (if required for stable supply)
- Resistors (various values per schematic)
- Capacitors (various values per schematic)
- Inductors or test sockets for DUT (device under test)
- PCB (printed circuit board per schematic)
- Connectors and mounting hardware
- Programming header for PIC16F628
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… Electronics Projects, PIC16F628 LC meter circuit “microchip projects, microcontroller projects, pic assembly example, pic16f628 projects,
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
Source: http://www.siliconchip.com.au/cms/A_110500/article.html
LC meter circuit PCB schematic pic16f628 pic assembly source code alternative link:
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-2599.zip
Source: PIC16F628 LC METER CIRCUIT
- What measurement ranges does the LC meter cover?
It measures capacitance from 0.1 pF to 800 nF and inductance from 10 nH to 70 mH. - What is the accuracy of the measurements?
Measurement accuracy is better than ±1% of reading. - What resolution does the LC meter provide?
It provides 4-digit resolution. - What power supply does the circuit require?
It operates from 9–12 V DC and can be powered by a 9 V alkaline battery or an external plugpack supply. - How much current does the LC meter draw?
The device draws an average current of less than 20 mA. - Which microcontroller is used in the LC meter?
The circuit uses the PIC16F628 microcontroller. - Does the project include display output?
Yes, the project includes an LCD display for readings. - Are PCB and schematic available for the project?
Yes, the article references a PCB and schematic and provides download links for files and source code.
