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Firmware for the Arduino-based LC and ESR Meter
The Arduino sketches for the LC and LC/ESR Meters.
The file "ESR.ino" is for the standalone ESR Meter while "LC_ESR_Meter.ino" is for the combined version
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Pair of PCB-mounting right-angle banana sockets (red/black)
Two 4mm PCB-mount banana sockets, one red and one black.
These are similar to the now-discontinued Altronics P9200 & P9201, as used in the Wide-range Digital LC Meter and other projects.
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1nF ±1% polypropylene (MKP) or C0G/NP0 ceramic capacitor
A single 1nF through-hole capacitor with 1% tolerance and 5mm lead spacing.
TWO are required for the LC Meter projects.
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20x4 Alphanumeric serial (I²C) LCD module with blue backlight
A 20x4 alphanumeric LCD module with blue backlight, supplied with an I²C driver module which may already be soldered to the display. With it in place, you can update the characters on the display over an I²C bus.
For more details, see the El Cheapo Asian Electronic Modules article in the March 2017 issue.
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ESR Meter add-on PCB for Digital LC Meter [04106183]
The separate Arduino ESR Meter PCB.
Double-sided PCB (single-sided design) with plated through holes, green solder mask and silkscreen overlay.
86.5 x 56mm.
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Combined LC/ESR Meter PCB (04106182)
The combined LC and Arduino ESR Meter PCB.
Double-sided PCB with plated through holes, green solder mask and silkscreen overlay.
68.5 x 115.5mm.
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Arduino LC/ESR Meter PCB patterns (PDF download) [04106181/2]
PDFs with the PCB patterns for the Arduino ESR Meter.
The add-on board coded 04106181 is single-sided and in its own PDF, while the combined LC/ESR Meter board coded 04106182 is double-sided, with both layers side-by-side on the same page of the PDF.
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Arduino ESR Meter table and baseplate template
Two PDFs to download; the first has the electrolytic capacitor expected ESR table that can be attached to the front panel of the unit as a reference.
The second PDF has the details of the plastic baseplate that can be used to mount the version built from separate PCBs into a T-shaped case.
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