general

[din25390]

1. I want to make ..................
" if a door bell is switched on ,there must glow bulb
outside the door and it off after 2 to 3 min"
hw can i do it?

 

[krw]

In article <3d55c9ca-1057-4588-872c-
61dfd957292c@j38g2000yqa.googlegroups.com>, din25390@gmail.com
says...>

1. I want to make ..................
" if a door bell is switched on ,there must glow bulb
outside the door and it off after 2 to 3 min"
hw can i do it?

Use a PIC. <rdh>

 

[Baron]

din25390 Inscribed thus:

1. I want to make ..................
" if a door bell is switched on ,there must glow bulb
outside the door and it off after 2 to 3 min"
hw can i do it?

Normally the bulb remains on except when the push is pressed !

--
Best Reagrds:
Baron.

 

[Jasen Betts]

On 2009-02-25, din25390 <din25390@gmail.com> wrote:

1. I want to make ..................
" if a door bell is switched on ,there must glow bulb
outside the door and it off after 2 to 3 min"
hw can i do it?

do you want a small lamp that indicates that the button has been
pressed or a larger lamp for illumination of the area.

do you already have the bell installed, and if so what can you tell us
about it?