# garage door control system

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#### sel7bees

##### New Member

hello everybody i am so glad to be here in this awesome forum.
And this is my first post in it i want some one help me to know the signal conditioning circuit of this project which is mainly discussed in attachments i hope u answer me as fast as u can thx 4 u
add me if u need to help
[email protected]

#### Attachments

• 357.3 KB Views: 187
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#### sel7bees

##### New Member
plz who can answer me send me
1.rough designe
2.milestone

#### bigkim100

##### Banned
Sure... any other schoolwork you would like us to do for you.
Let me know when you have sex ed classes...Im really helpful there.

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#### sel7bees

##### New Member
Sure... any other schoolwork you would like us to do for you.
Let me know when you have sex ed classes...Im really helpful there.
i was so wrong when i participate in this forum

#### bigkim100

##### Banned
i was so wrong when i participate in this forum
LOL...you join this group, you have never been on here before, have done nothing to help anyone else out on here, but you expect someone to do your schoolwork for you.

Try the following suggestions:
1- At least hang around a few days and make yourself useful before expecting a ton of work done for free
2-Gain a sense of humour...it will serve you well over your lifetime in the real world.
3-when you are in a public forumn, you will encounter many, many people, and when you ask for free things you will get a wide variety of answers...some will be useful, most will not be, and some will make fun of you in a good-natured way.
As long as you are not paying for a response (and remember, electronics designers/ programmers cost from $75-$300.00 an hour...or more) you gotta grow a bit of a thicker skin.

You can also expect a far better response if you at least TRY to answer a portion of this project yourself, and ask for help on SOME elements of it...not a full design from the ground up.

and remember...we are not your parents...and we are not here to tell you that you are our "special little boy"...so grow up

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#### sel7bees

##### New Member
u even dont know what i asked for i just asked for the signal conditioning circuit which is a small part of the project not i asked to make it and bring it to me i have made the c code just want the d.s.c.s

#### ericgibbs

##### Well-Known Member
u even dont know what i asked for i just asked for the signal conditioning circuit which is a small part of the project not i asked to make it and bring it to me i have made the c code just want the d.s.c.s
hi,
While we wont do homework directly, most of us are happy to give guidance to help you solve your problem.

Which aspect of the signal conditioning do you need a hand with.?

#### sel7bees

##### New Member
i just want to know what the signal conditioning circuit will be note that the input is coming from light sensor and output goes to computer through parallel port
i need discussion with rough design of s c c
and thx for ur reply ericgibbs

#### ericgibbs

##### Well-Known Member
i just want to know what the signal conditioning circuit will be note that the input is coming from light sensor and output goes to computer through parallel port
i need discussion with rough design of s c c
and thx for ur reply ericgibbs
hi,
The output of the light sensor will have to be amplified to give a voltage swing of about 0V to +5V, when going from dark to light or dark to light.

The PC paraport expects a TTL signal level which is 0V and +5V.

What is the light sensor.?

#### OutToLunch

##### New Member
...when going from dark to light or dark to light.
and from dark to light

#### blueroomelectronics

##### Well-Known Member
Having you PC running to open a garage door seems overkill.

#### Boncuk

##### New Member
I'm curious to see how a garage door closes on a passing car when another one approaches at night "telling" the optical sensors it's not dark.

Also the design assumes two through traffic garage doors, one for entry and the other one for exit.

This applies to commercial parking garages only. Hotels normally use one drive way for in and out.

Boncuk

#### sel7bees

##### New Member
What is the light sensor.?

i will put a pdf which will discuss everyting about it hope it helps

#### Attachments

• 58.4 KB Views: 79

#### ericgibbs

##### Well-Known Member
What is the light sensor.?

i will put a pdf which will discuss everyting about it hope it helps
hi,
Seen the pdf.
These are just the basic ultrasonic transducers, you will require a transmitter driver and a receiver module.

I'll look thru the data, see what I can find.

You could also Google for : ultrasonic beam

#### sel7bees

##### New Member
ok i will too thx man

#### ericgibbs

##### Well-Known Member
hi,

Tell me exactly what components/hardware you have, the simple sketch you posted gives no information that is useful.

#### sel7bees

##### New Member
no i just want a shcematic for the signal conditioning circuit regardless of the components or hardware

#### sel7bees

##### New Member
did u get it ?

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