# A Simple Eletronic Objects Counter

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## Introduction: A Simple Eletronic Objects Counter

Hello again. Since this is my second instructables, I think that be a little better!
The circuit I describe here, and a simple counter of objects, which contain up to 99 objects (most forward and teach the ability to extend counting).
The circuit is based on three blocks, and the sensor, circuit and display.
Lock the pictures:

## Step 1: Take the Parts

The circuit uses few parts, all at low cost. For this project you will need the following pieces:

-1 Infra-red LED
-1 Photo-transistor
-1 Double red LED display (common katode)
-2 IC CD4026
-1 10K resistor
-2 1k resistor

## Step 2: Make Your Counter

So. In the next pictures you have the tracks, of the up side and down side (because you need use de double-face PCB).
I test my project in one protoboard.
And that. Good luck in your assembly and until the next

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• ### Woodworking Contest

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## Questions

I need to install 10 counters, but I need a total counter to get the final score from the 10 counters! It that possible?

Yes, it is. Just put the sensors in parallel

I need to install 10 counters, but I need a total counter to get the final score from the 10 counters! It that possible?

Hi,

Can this counter 1+1 =2: 2+1= 3...........

Can make this counter 2+2=4 ; 4+2=6 ...........

Can make this counter 3+3=6; 6+3=9 ...........

Can make this counter 4+4=8; 8+4=12..............

What thing I need to replace to make work like that?

I will need to buy 10 units