7 segment display up/down counter with sensor

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fieryyella

New Member

• May 8, 2013

• #1

Am trying to build a up/down counter with a sensor to sense an object(cans) to increment and decrements am using a touch switch with a 555 ic so how can i add the counter and what kind of sensor should be used

 

BeerBelly

Member

• May 8, 2013

• #2

Welcome to the forum.
A previous thread discusses this project. See below
https://www.electro-tech-online.com/threads/up-down-counter.133400/

 

alec_t

Well-Known Member

Most Helpful Member

• May 9, 2013

• #3

Is the can static or moving? Size? Aluminum or steel?

 

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fieryyella

New Member

• May 9, 2013

• #4

just your regular food can you put in pantry's and it moves thru a rack

 

alec_t

Well-Known Member

Most Helpful Member

• May 10, 2013

• #5

The simplest sensor could be just a microswitch actuated as the can moves over it. Or you could use a reflection-type optical sensor, a beam-break optical sensor, or a sensor responsive to the electrical/magnetic propereties of the can.