| switches itself on (and off) This circuit forms a switch that can be triggered on (or off) at the onset of darkness and remain active for a...
| switches itself on (and off) This circuit forms a switch that can be triggered on (or off) at the onset of darkness and remain active for a...
| 7-14 - elektor july/august 1982 There is a wide range of applications for light sensitive switches: staircase light timers, outdoor illumina...