In SX Microcontrollers, SX/B Compiler and SX-Key Tool, WMcKILLemALL wrote:

JPH

A V.F.O. might be a better approach for Your 0 - 24 volt reading.  Buy reading just Freq. from the VFO it would use only one I/O pin as well.

You'll have to find a VFO with a TTL level output of coarse.

With a 0 volt "VFO" freq set at 1kHz and a 24 volt "VFO" Freq set at 5kHz, This would mimic the industry standard "1 to 5 volt"

I don't recommend using 0 volts with a 0 kHz out for this setup because it lacks "Loop" verification. Its nice to know that the field loop is intact. since anything less then 1kHz would generate an error

Thier are other was to do this voltage read. I like the simple ways


_________________$WMc%_________

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