As usual after investigating I answer my questions by myself
I am going to work now on this circuit
http://solartracker.greenwatts.info/solar_tracker_LM339_schematic.htm
as I have a spare power source from a salvaged PC and there I have -12V, 0V and +12V. From former experimenting I know how to start this power sources.
After much thinking the inverted LED solution makes it possible to switch 2 outputs alternatively and simplifies my switching and when both LEDs are balanced I have no switching.
... and the sun is shining ...
Let me see what comes out ...
I am going to work now on this circuit
http://solartracker.greenwatts.info/solar_tracker_LM339_schematic.htm
as I have a spare power source from a salvaged PC and there I have -12V, 0V and +12V. From former experimenting I know how to start this power sources.
After much thinking the inverted LED solution makes it possible to switch 2 outputs alternatively and simplifies my switching and when both LEDs are balanced I have no switching.
... and the sun is shining ...
Let me see what comes out ...
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