Analogue PPM using VFD and PIC

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DaftFader

Well-known member
Joined
May 8, 2021
Messages
78
Location
DeafStar in low geostationary orbit above the UK
Anyone interested in an analogue vacuum fluorescent meter? Microchip PIC based (8pin 12F1572) uses a now obsolete (?) Itron 2x 101 segment display (I have 50 or so in my loft with drivers and PSU - FS: 2 x101 segment linear VFD 'kit' )

vfd101aso-jpg.80695


https://github.com/WKTodd/AnaloguePPM/tree/master
 
I've mentioned this before but I made a 100 segment VFD meter back in the early 80s.

I had to roll control circuitry using standard digital logic chips. As I recall the display was addressed in banks of ten. I used 1dB per segment sensitivity and displayed peak as a single bar floating above the solid bar VU display. It was sweet but I only made one working prototype.

JR
 
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