12V 24V 30A Einzelrelaismodul Grenzschalter PV Panel Sonnenverfolgung Steuerung Zum Selbermachen
26,19 €
The design can work with only one LED, I put two LEDs for each compass direction to allow more flexible field of view since these LEDs have narrow angle field of view. Using the LEDs one can catch more field of view, i.e. skew lightly the LEDs such that each LED will cover more angle, this will ensure smoother operation.
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