Description: This is a simple object counter circuit that counts from 0 to 9. You can make this project using four different modules listed below:

Follow these steps:

a. Connect collector pin of infrared remote tester to positive terminal of electrolytic capacitor of RC module.

rc-AND-ir2

b. Connect counter module to RC module. Connect collector pin of transistor (in RC module) to pin 1 of 4026B.

object-counter

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c. Orient infrared transmitter towards infrared receiver module. Whenever you block the infrared beam, the circuit starts counting.

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infrared-transmitter1
Infrared Transmitter

Use infrared LED in infrared transmitter. HOW TO MAKE AN INFRARED TRANSMITTER?

WATCH THE VIDEOS:

TESTING COUNTER WITH INFRARED REMOTE:

We have recently released a 3 digit digital object counter kit. You can buy the kit at BuildCircuit store. 
Step 15- Connect a 9V battery and your kit is ready Buy now button


 

14 COMMENTS

  1. I have already made the circuit but its not working . I think the problem is the ir sensor . because the rest of the component is working .

  2. sir, i have question on these can u help to answer me ?

    1. The seven segment display can i use the pin are in horizontal form?

    2. The infrared detector, must i use exactly as TSOP4838?

    3. Can the counter start from 0?

    Thank you

      • Sir thx for your answer but now when i start work on it i found some new question would u answer me again?

        1. First, all my module (RC,infrared detector and counter) can work independently but when i connect all together, the LED of my RC module and infrared detector will light up. I thought it will only bright up only when receive IR. Is that my circuit connection problem?

        2. Then for the counter, the seven segment when connect to 4026B is it only show 8. And it will only start counter when i connect to some other module such as 555 timer

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