basic range sensor (URGENT) by using Opamps not timers

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elvinme

New Member

• Dec 25, 2010

• #1

i am required to design a range sensor by using opamps, any kind of capacitors,resistors,LEDs . Timers are not allowed to be used. Also only DC voltage sorce allowed it should not be more than 3 DC sorce. th basic requirement are that:
design a circuit that measures 0-60cm diistance and by the help of 4 LEDs visualize it.
0-20cm 1 LED is on. 20-40 2 LEDs an so on.
TSOP1138(TK 19) allowed to use of course

 

Last edited: Dec 25, 2010

blueroomelectronics

Well-Known Member

• Dec 25, 2010

• #2

Sounds interesting. Keep us posted.

 

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#12

New Member

• Dec 25, 2010

• #3

You could look at the bottom of this page and see what almula learned when he posted the same homework assignment.

 

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elvinme

New Member

• Dec 26, 2010

• #4

timers are used in that project. but we are not allowed to use them.olny opamp and TK19 should be used.

 

blueroomelectronics

Well-Known Member

• Dec 26, 2010

• #5

So far so good.

 

atferrari

Well-Known Member

Most Helpful Member

• Dec 27, 2010

• #6

Yes, I run across almula in the chat room seeking for help. But he seemed quite unable to explain the problem more or less precisely.

 

blueroomelectronics

Well-Known Member

• Dec 27, 2010

• #7

Ahh, so far all his posts are statements not questions.