Just use your finger to touch them only also can turn on off circuit.
Light sensor on off switch circuit.
The dark sensor circuit is very useful to automatic switch on and off any appliance by detection of light and dark.
The light sensor circuit is a simple electrical circuit which can be used to control the switch on and off electrical load appliances like lights fans coolers air conditioners street lights etc automatically.
Dark light activated circuit using ldr.
This switch type is widely popular.
By using this light sensor circuit we can eliminate manual switching as the loads can be controlled automatically based on the daylight intensity.
Get it as soon as thu oct 1.
A few light sensor circuit based projects can be listed as a solar highway lighting system with auto turn off in daytime security alarm system by photo electric sensor sunset to sunrise lighting switch arduino managed high sensitive ldr based power saver for street light control system etc.
8 simple touch switch circuit projects.
4 2 out of 5 stars 764.
Topgreener tsos5 white in wall pir motion sensor light switch occupancy sensor switch on off override single pole fluorescent 500va motor 1 8hp incandescent 500w neutral wire required 1 pack.
We will experiment with the digital touch switch circuit using jk flip flop as rs flip flop.
Automatic evening on to morning off light.
When light intensity high on ldr the resistance through it decrease and when light intensity is low on ldr then the resistance through it will increase and go very high.