This basic circuit is from an old documentation. The relay must be 50 mA maximum and must have a parallel diode so that the pulses generated in the switching do not affect circuit stability. The LDR can be of any type.
This basic circuit is from an old documentation. The relay must be 50 mA maximum and must have a parallel diode so that the pulses generated in the switching do not affect circuit stability. The LDR can be of any type.
