rithwik
Newbie level 1
can some one help me out to do burglar alarm?
i wan thinkin of th light diode .i don remember exactly which diode.the diode has low resistance whn light falls on it.so i was thinkin of buildin a circuit with this diode.was thinkin of emmitub lazer light to this diode . n whn some one passes th light will stop emmitin n th resistance goes high.n th burglar will switch on...can some one help me out with this
i wan thinkin of th light diode .i don remember exactly which diode.the diode has low resistance whn light falls on it.so i was thinkin of buildin a circuit with this diode.was thinkin of emmitub lazer light to this diode . n whn some one passes th light will stop emmitin n th resistance goes high.n th burglar will switch on...can some one help me out with this