User manual

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c) Light-dependent resistors (LDR)
Resistors that change their resistance value in dependence on the light strength are called LDR (Light Dependent Resistor).
These LDRs are soldered in on the bottom of the main unit and the pins angled beforehand in such a way that the transparent surface points
outwards. Now you solder in a 3-pole socket strip JP3 between the two LDRs to achieve a light shading between the two LDRs. This allows you
to detect a light source much more effectively.
R15, R17 = LDR A906013
JP3 = separator for the LDRs (3-pole socket strip)
d) Capacitators
Plug the capacitators into the marked borings, bend the wires slightly apart and solder these cleanly with the conductor strips.
With electrolyte capacitators (left image, also called "elco"), you have to observe the correct polarity when soldering/plugging them
in (plus/+ and minus/-). In case of wrong polarity, the capacitators may even explode!
Attention!
Depending on the make, electrolyte capacitators may have different polarity indicators. Some manufacturers label them with "+",
others with "-". The polarity imprinted by the manufacturer on the capacitor is decisive.
C8 = 1nF (name "102")
C5 = 10nF (name "103")
C3, C6 = 100nF (name "104", see image on the top right)
C7, C9 = 10µF
C2 = 22µF
C1, C4, C10 = 100µF