Digital LC Meter Version 2
Digital LC Meter Version 2
Updated software - March 2020. The revised software checks for the presence (or absence) of a 1K resistor from pin 11 of the PIC to ground. This determines how the LCD is addressed.
An "improved" inductance / capacitance meter by Phil Rice VK3BHR
Actually, it works much the same as the original.
This version was a club project of the Midland Amateur Radio Club - http://www.marc.org.au
It differs from the original in that:
A 16F628 PIC is used. This has internal comparator, which means the LM311 is no longer needed.
Software calibration is used. The finished meter can be calibrated against "any" accurate capacitor within the range 100pF to about 10000pF.
A PC Board layout is available, but not quite the most recent. I have misplaced that one. The version here, does not include the resistor & link connected to pin 11 of the PIC. Sorry about that.
LINKS:
https://sites.google.com/site/vk3bhr/home/index2-html
https://ekaww4.wixsite.com/eletronica-analogica/post/projeto-lc-meter
Digital LC Meter Version 2
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