7 Segment Counter using IC 555 and IC 4026

Hi! I built this circuit but when I press the count button, it just goes to 1 and never goes beyond that after pressing it again. And when I press the reset button, it resets to 0 but if I press the count button again it doesn't work anymore. What do you think is the problem? :( Thanks.

My counter is showing 0 only I pressed the buttons nothing happened

The circuit is working perfectly, please double check your circuit connections specially connections to the seven segment display and only use COMMON CATHODE type seven segment. Take the help of bread board circuit Image.

thank u circuit is working ...

thank you!
the circuit is working perfectly.

Pls help circuit not working

This circuit not work properly counting process is generator randomly

Ground sign is not needed as we are using battery symbol, and Ground is considered as the negative terminal of Battery.

I just made the circuit the 7 segment display turns on but on my design i made just made two holes for the switchs and idk how to play the 4 legged switchss on the board pls help me thank u

Reset button works but the press button to go up to 9 does not help pls

I tried so many times but

1. IC CD4026 becomes hot every time
2. when i press the button no change occur in the display

I checked the connection but everything is ok. what is the problem? plz help me.

* i used 9 V DC Adapter

what should be the schematic diagram if i will do the countdown and i will not use buttons? hoping for your reply. thank you.

Hi guys, I have been experimenting with this ic 4026 for a couple of days, and when I finally got it working, the numbers were just spinning around very quickly and just displaying random numbers, I was just using a debounce circuit, and not the 555 as you have here. But what I found was that as soon as a jumper was connected to the same track as pin 1 (the clock pin) the 7 segment display would take of running thru the numbers very quick, even if I just touched the pin 1 with the metal prong of the jumper this was enough to set it going, which I assumed was something to do with capacitance from the bread board, to stop it I used a large value resistor.

what if i want to use 2 seven segment display?i want to use it as a timer ... in minutes
will this work?

What if I have to count 2 digit numbers ....and display on 7 segment

Can see full image of circuit.
& where are those two wires connected

Sir i need to drive a two 7segments in single ic. I can I do it sir pls tell me

I built the circuit correctly but it not working , what is the problem tell to me

there is no wire connected to PIN13

i built the circuit correctly and check the circuit perfectly but it just display 0 when i press the count button it doesnt go up the reset button seems fine. please reply ASAP I really need help. you can help by taking pictures of what u built side by side and front please

can you make a list of a the connections pls so that we can understands well

I have connected the circuit and it works properly , thanks a lot for your help !!

I want to use 5 digits each with a 7 segment display. Do I need 5 of each of the components? I want a simple push button below each digit to increment from 0-9, no reset required. If I were to use an off the shelf assembled 5 digit display can I integrate just the push button to increament

sir i want to do 7 segment dispaly board to display my collage name ple can you help me how to do

my circuit works on Yenka simulation software, but does not work on breadboard. Seven segment is always showing 8 . Does not rest or count

I built the circuit as designed and of course it worked perfectly. I then tried to substitute a much larger display (2.24" character height) but it does not work. I assume that is because the original display (.56" with a Vf of 1.8) works well at 9VDC while the larger display has a Vf of 6.8, which will not function at 9VDC. Can you tell me what changes I need to make in the circuit diagram to enable use of the substitute larger display? Thank you for any help you can give me.

Thank you for the E-Mail response to my initial posting.  You asked about the 2.24" character height display that I tried to substitute after successfully building the basic circuit shown above.  This 2nd display is listed as Vf=6.8 @20mA and mcd=30@20mA (I don't know what mcd stands for and it could be critical).  The segment output color is Red.  Your note said "you could try this IC.... with a source current of 6.8mA".  If I understand you correctly, I should add current limiting resistors (10K) on each segment and increase Vdd to 15 VDC.  Does that also mean to continue using the IC4026.  P.S. I've recently found another 2.24" character height display with Vf=2.0 @20mA and mcd=34 @10mA.  Brilliant Red output color.  Thank you for your comments and I hope to hear from you on my latest post.

plz I have built the circuit but the reset button didn't work what can I do
thanks

how can generate 1hz frequency for digital watch

please how will connect the circuit

tks great circuit!
I like the CD4026 a lot, but what is the use for DEO - Display enable out?

It was such a lovely circuit. Couldn't get the common cathode display but had to create one with LEDs and it works perfectly when all components used conform with the exact specification, good one guys.

I cant make it work :( the schematic diagram btw. i have been trying i did exactly as it is in you schematic diagram but it really wont work :( please help

Do we need to program ic 555 here or use it as it is?

circuit is working correctly in simulation but I want to know how to replace button with sensor, my sensor is AD021 3-80cm proximity switch.

circuit is working correctly in simulation but I want to know how to replace button with sensor, my sensor is AD021 3-80cm proximity switch.

Can you show me how to put a switching the circuit to turn the display on and off to save battery power if left on?

Why aren't there resistors from 4026 to 7-segment? Can 1 get ready made PCBs of this circuit?

Can you please provide me with the purposes of the resistors, the capacitors and why of that values?

Hi,
Can anyone help me here, am looking for a very simple BCD4026 manual electronic counter circuit that has a buzzer which will be ON when number of manual counts/clicks reaches 10, and the buzzer will stay ON until I hit a reset button. Please, any ideas or schematics around that can d that?

Hi,
How can I modify your circuit by adding a Buzzer to make it beeping when you reach number 9 , and it will continue beeping until you click the reset button to stop the buzzer?

how can I operate 24v 7 segment diplay on same circuit?

I have an assignment that I should write a code for a 7 segment with 4 switches input
explain >> 4 switches mean 4 bit X1 X2 X3 X4
assuming X1=1 (switch on)
X2=0 (switch off)
X3=0 ( switch off)
X4=1 (switch on)
that mean input will be (1001) == (9) which mean the 7 segment will display 9
and so on
how can I write this code , (I am so bad at C++ programming and micro C programming )

The project is good and perfect.

but I have a question....
Apart from ic4026, Is their any other linear ic that is non volatile that is..ability to store last value of the 7 segment when power is of?

with 4026, I must start counting from one any time I turn on, any linear ic that can store the last digit before turn of and display it automatically when turned on?

This circuit is working ok but I am facing one problem while cascading another ic after reaching digit 6 it jumps to digit 17 ,18 and count till 26 and again jump to 37 .I mean ic pin 5 generate pulse after 6 instead of 9. Please help me to solve this.thanks tkakur05799at the rate gmail.com

is it can count frequency of a circuit ?

Hello i want to ask something.
Can i make this circuit using a PCB?

can u show me the circuit in PCB?

What would I have to do to have a self restart counter that counted from 0 to 9 then reset and automatically started counting again from 0 to 9, repeating this cycle continuosly.

Thanx