hello all
i need to build a counter that counts fro 10 to 0 in decimal. i need to use 4029 counter , and use of 7 segment to show the counting.after reaching to 0 the count should stop.
ty for your help

 

Is this an assignment?
http://bbs.dapj.com/2008/06/digital-counter-4029-and-4511.html
http://www.electronics-circuits.com/cirdir/theory/gates/doc00021.html
Max.

 

So you need to use that counter with a binary to 7-segment decoder.
You need to add a circuit to detect the zero count and then inhibit the clock to the counter.
Also need a way to set the counter to binary ten (1010) before the count is started.

 

Welcome to AAC!

i need to build a counter that counts fro 10 to 0 in decimal.

9-0 or 10-0? It makes a difference.

Something seems to have been lost in translation because CD4029 can't drive a 7 segment display directly. Post the full text of the problem.

 

9-0 or 10-0? It makes a difference.

Yes.
Displaying the number 10 would require two display digits.

 

Yes.
Displaying the number 10 would require two display digits.

 

https://drive.google.com/open?id=1dZFOBPJrAhYVjGlxqordxnMAP1pR4O4thi all
ty for your quןck responseץ
well i tride to conect to 4029 in proteus to bcd 7 segments one digit , set the counter to count in decimal mod and counting down .but it count from 9 to 0.
i know i have to use 2 digit 7 segments and a driver betwen the 4029 and the 7 sigmets.
what i need i circuit that counting from 10 to 0 and displays it in decimal .


.

 

well i tride to conect to 4029 in proteus to bcd 7 segments one digit , set the counter to count in decimal mod and counting down .but it count from 9 to 0.

In decimal mode, those are the only valid counts.

what i need i circuit that counting from 10 to 0 and displays it in decimal .

Please post the entire text of the problem.

CD4029 is a binary or BCD counter. How many counters are you supposed to use?

 

i dont have limitation about the number of 4029 to use. only limitation is to use 4029 for counting.
and make it as simple as posibel.

ty..

 

i dont have limitation about the number of 4029 to use. only limitation is to use 4029 for counting.
and make it as simple as posibel.

How many counters are you going to use? What is your definition of simple?

 

How many counters are you going to use? What is your definition of simple?

well for the start i used one and i saw its not good ressolt. so if ineded one more i will use it,
simple is the minimum parts using to do and show the counting

 

well for the start i used one and i saw its not good ressolt. so if ineded one more i will use it,

Based on your description, it can be done with one or two counters. Post the schematic for your solution.

 

Based on your description, it can be done with one or two counters. Post the schematic for your solution.

well this is the link to the schematic i did: https://drive.google.com/open?id=1dZFOBPJrAhYVjGlxqordxnMAP1pR4O4t.
how to upload a photo to site?

 

well this is the link to the schematic i did: https://drive.google.com/open?id=1dZFOBPJrAhYVjGlxqordxnMAP1pR4O4t.
how to upload a photo to site?

There is a file upload button under the text entry box, our you can cut and paste an image into the text entry box.

 

 

Can't read labels. It appears that you're posting the circuit that didn't work. Post your idea for one that counts down from 10.

 

WELL, I CANT FIGURE ONE .YES THIS ONE NOT WORKING -ONLY COUNT FROM 9 TO 0 IN DECIMAL.
WHAT I NEED IS ACTUALY SEE IN THE SIGMENTS THE COUNT FROM 10 TO 0 LIKE IN HAPPY NEW YEAR COUNTING....
LOST HEARE...
TY

 

Are you allowed to display decimal 10 as hexidecimal "A" ? If so you would only need a single digit display.

Les.

 

Are you allowed to display decimal 10 as hexidecimal "A" ? If so you would only need a single digit display.

Les.

Well, that's the problem.whit hex i sucside,but I need display the decimal "10" and count down.

 

I don’t understand your issue. You need a second digit. So add it. You need to count down from this digit. So add something to do so. You need to connect the two digits so they count down together. Read the data sheet to learn how.