ฝัง
- เผยแพร่เมื่อ 27 ก.ย. 2024
- In this video, I've explained how to make a 12 hours digital clock without microcontroller. Here, I've used crystal oscillator to generate the clock pulse. Crystal oscillator provides accurate clock frequency. Then with the frequency divider IC CD4060, we're getting accurate 1 Hz clock pulse.
This clock has four stages-
1. Clock pulse generation
2. MOD 60, this is for seconds hand display
3. MOD 60, this is for minutes hand display
4. MOD 12, this is for hours hand display
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Working of 4026, video link:
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MOD 10, video link:
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MOD 12, video link:
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MOD 24, video link:
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MOD 32, video link:
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MOD 60, video link:
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Required Components:
IC:
1. CD4060 x 2
2. CD4026 x 6
3. 74ls00 x 1
Resistors: 10 K Ohm, 330 Ohm, 330 K Ohm
Capacitor: 30 pF
Zener Diode: 1N 4148
Miscellaneous:
Crystal oscillator 32.768 kHz
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The idea of using a bread board instead of directly using the components in the assembly is very great..pls do all your projects in the same way..its very easy for even a diy starter to understand ...keep up the good work
You have one of the best channels .Keep going and thank you 😊
it's a pitty, you don't explain anything regarding the logic.... WHY do you use the diodes, what are their function? WHY do you use the 74LS00? Why are the pins connected as they are?
exactly i want answer to these questions as well did you find it out?
A very interesting circuit! I like how you fully explain what all the pins of the ICs are and aren't afraid of going into the mathematics of the calculations. It makes a LOT more sense than a lot of videos out there. I really enjoy these non-microcontroller circuits that rely on ingenuity rather than just programming.
It's also nice to see a crystal being used because this is much more accurate than the usual use of a 555 timer. Could you tell me how accurate the 1 Hz is over a long period of time? Is there any drift at all? I noticed in your Part 1: How to generate 100% accurate 1Hz clock that it seemed accurate. In Part 4 of the same series the pulse was between and 59.95 Hz and 60.02Hz. Which is more accurate, the 32.768 KHz or 4.9152 Hz crystal?
If I don't need seconds shown, couldn't I use the Part 4 output and adapt your circuit?
Have you noticed if temperature affects the accuracy of the pulse?
Could a CD4011 be used instead of the 74ls00?
Thanks for the excellent video.
I think 32.768 kHz is more accurate than 4.9152 MHz. I've seen nearly every watch (whether it is table clock or wall clock), they use 32.768 kHz.
Yes, temperature affects the accuracy of the pulse. And also my oscilloscope is not so accurate so I'm not able to calculate the accuracy.
Yes, we can use CD4011. Both are NAND Gate.
Thank you so much for supporting me, please keep watching. My viewers and subscribers are too low.
bhai which transistor we should use ? plzz give name of it
Can you please teach us on how to program microcontrollers like 8051,ATMEGA.
As your teaching process is supper,so I think it will get benefit to us as well as you too♥️
Will it work if we have a 9v battery instead of 6v
Thank you so much. Everything worked perfectly except the push button switch.
Brother, your circuit Explaination makes easy for understanding any circuit. Thanks bro 🤜🤜. Can you pls help me by giving me the full circuit diagram.?.. It may be helpful to me. By the way all the best 👍💯👍💯👍💯
Could you add links to the components? Or where do you recommend getting them from?
can you please make a clock using the CD4518 dual binary counter IC?
great video love all the details an effort! thank you
How can we connect to power supply sir? Could you please answer this as we have to submit our project within 2 days ..thank you so much for your video sir
Очень доходчиво и без лишних слов! Здорово!
I have assembled all the components as your circuit diagram, but it work from 1 to 99 instead of 59. I am feeling very bad and very disappointed. Please guide me.. what cause of it.
Please check the diode connection carefully.
@@EEWave Dear, I don't know k main ye banany main Kamyab hn ga ya nai. But, mujhy is baat ki behad behad Khushi howi hy k aap ny mujhy fori reply Diya. You are really great. Please main ye banany ki Puri koshish karon ga, aur agar Kamyab na howa to Kiya aap mujh sy phone py baat ker lain gy??
This is just a counter which works from 0 to 99. This is not a clock. This is fake 😂😡😂😡 video. Please I request all of the viewers, don't believe him.
I am excited with Engineering ! many thanks!
Where was this video 10 days ago???
I was searching hard to find a video explaining how to make digital clock.
Almost all video had microcontroller.
Finally found one video, but he used 555 timer for clock. I wanted a more accurate one, so I searched and searched, and finally found a video explaining how to do accurate 1hz from crystal. (That's how I discovered this channel)
I decided to combine those two,
And ordered all the necessary things from a website.
3 days later, this is in my recommended 🤦🤦🤦
But I wish you also explained how it works, and what all the components do, while showing the circuit diagram.
taking too much time to make but concept is clear.
nice
Can we use7476 ic in this circuit?
Hello, I do have a question, please. Is it possible to make a 2-digit counter that counts from 1 to 16 and then resets back to 1?
Yes, it is possible without microcontroller but the circuit will be little bit large. 0 to16 is much easier than 1 to 16.
EE Wave ok. Do you know of any such circuit online you could point me to?
I don't know whether it is already designed or not, but anyone can design this kind of logic circuit with the help of K-map. I design in this method and I already uploaded an example video on this method. It is about designing the 7 segment display driver circuit.
th-cam.com/video/QRAHCqw2wcA/w-d-xo.html
I hope this video will help you.
EE Wave thank you very much. I’ll watch it now. I appreciate your help!
Hey brother I've made this twice and it's just not working for me. Why no resistors and the diode change, or why the hours and minutes button work?
bro my hour is not reseting to 00 after it reaches 12 rather it continues to 13,14,15, ....and so on. please solve this problem.
Hum Nepal se he bhai jee app ko G Aapko video baut achha he lekin ye sab 40 26 IC kahaapar melega gara bataadijiye sir
Namaste bhai. Ye apko Amazon me mil jayega, maine Amazon se hi kharida hu.
I want to replace the 7 segment display with leds so that the display is bigger. What changes I need to make? Please reply.
I've uploaded a video on how to make bigger and bright 7 seg display with LEDs. I hope this video will help you.
Video link: th-cam.com/video/JNOJL1yjZTk/w-d-xo.html
@@EEWave Ok Thank you, will definitely try.
add npn transistor at output pins of ic 4026(a,b,c,d,e,f,g) segments.select npn transistor as per size of display.
احسنت يا اخي لو سمحت لماذا لم تضع مقاومات ل 7 segment وشكرا لك على الإفادة
Why are we using two 4060 for pulse generator can't we use only one 4060 for it???
We have made the circuit ,but it is acting as a timer , push buttons are ineffective . Change in Minutes and hours are not possible manually. Please help 😢.
I'm building this with 6 giant 7 segment displays like the one you built haha it'll look hilarious in my garage
Wow, that sounds great. It will be a very big clock.
@@EEWave yeah plus I'll have 2 more panels with dots and another that'll switch am to pm maybe, I use 24 hr clock so I probably won't. I got a 3d printer finally that didn't arrive broken haha sucked to have to pay extra money out of my hobby fund. I was looking for cheap 3mm leds the other day and found one of those 10x10x10 cube diy kits on sale for 10 dollars and got the leds I wanted plus lots of other useful stuff like 10 74hc573 ic and other parts I didn't have that are very useful. I would've bought like 3 of the kits if I had the money. I'm slowly gathering the parts for a diy cnc setup for laser cutting. I'm going to save up and get a super powerful laser and psu for it. I want to be able to cut acrylic and mdf.
This is great. Thank you. What would happen if I used a 9V? I don't have a power supply, and 9v are easier to come by.
I have done the circuit and everything is working but it is second and minutes and hours are counted until 99 sec 99 min 99 hours and push buttons are effective please someone explain me how to solve the problem
Sir we are making project by watching your video but sir the display is not coming proper only half is coming and half not as well as led light is not coming like your .
Sir cam you help us
Are you using cathode or anode 7 segment displays?
@Saad Mansoor
Also what kind of transistor are you using NPN or PNP
which type of display anode or cathode?
Can anyone tell what capacitor is used here ?
Will it start count from 0 if i disconnect and reconnect
If it's does how to fix this
Any replacement of 4060 ic in tinkercad?
Joto joldi pari ami apnake bolbo.
Cam you please help me I build this circuit but my hour display still counts up to 99 it doesn't reset to 00 after 11 it keeps counting
Same issue facing😢
ive made the circuit but real time changing is not operational..push button switch pressing doesn't change the time or have any effect on it.... kindly help its urgent
You have put the button in wrong position
I tired you circuit but my led is not blinking and not working zero zero or random number displayed
Which transistor have you used?
bc548
Can this circuit alarm be used.
My push button isn't working
can you please help me out
Can I use 1n4007 diodes like the mod 60 lesson. I don't have those zeners
Yes, you can use.
@@EEWave I figured you reverse biased them being that they're zener diodes. I hit the books and changed the circuit to all cd4xxx ic without any diodes or 74 series ic
Hey man. Have you let this circuit run any length of time? There's alot of drift man. Is there a way to clamp it. I made the pulse circuit on a tiny piece of strip board. It's 28 holes wide and 14 strips tall.
No bro, I didn't. If it has drift, then I think we have to select more accurate pulse generator.
@@EEWave the timebase is 1 second but the square wave drifts within minutes. The minute and hours hand work when I press it on the scope. Can I make it a 12 hour clock without using ttl logic? Just use diodes to reset it and pulse the am, pm that will light up
Just think how good that would have looked if those jumper wires laid down on the board....
Please make a video on how to make remote controlled relay module using ir sensor not just receiver
Please...
"Remote control 8 channel home appliances" please watch this video. Here, I used hand made optically isolated relay module and Arduino. It is uploaded on "Arduino project" playlist. I hope this will help you.
@@EEWave
But it is not possible for everyone to have a laptop and Arduino
Without microcontroller, it is not possible to make multichannel. If you want to control single relay with tv remote, than I can make it.
@@EEWave
Ok thank you so much
Can you please make this in pcb by taking money?
Hi.
PULSE STAGE
I don't get a 60Hz signal in the the pulse stage. I have to replace the 330k resistor with a 1Mhz resistor to get close.
Also, I notice if i change input voltage at Vcc from 3v to 5v the my output frequency is affected.
MOD12:
I needed a pull down resistor on pin1 of each 4026 IC.
I also noticed MOD12 input voltage cannot exceed 5.5v otherwise the second 7-segment display won't reset back to 0 after 11 hour. It will continue counting up to 99
Nevermind. Pull down resistor was no longer needed once i connected all the modules together🤣
To reset CD4026 at any MOD, please use AND Gate IC, you will not get any problem. Here in this video, I've used Diode to reset the IC, but sometimes it make problems.
100 percentage right.., my mod 12 counter does not work properly ,pls help me my vcc is 9V.
@@56_neelpatel74 voltage is too high. Try 4.755vdc to 5.25vdc.
@@EEWave help me pls
Can i operate it 9 volts Battery?
bhai iska circuit diagram milega kia
Do you schematic for pcb simulation of this circuit 🙏
I had the minutes and seconds working but when I try to put the 12 hour counter nothing works. The minutes now only go to 20 when using the hours button and the mod 12 does nothing. I'm obviously doing something wrong haha
You do one thing. Please connect 220 Ohms resistor between all 7 pins of display and the IC. You should get output.
anyone tell me please which transistor is used here?
Use one display multiplex. Minus cabs
How much total cost of this project sir
Any one else stuck making the mod 60 counter work?
I’ve rebuilt this circuit 4 times carefully pausing the video at each step and i constantly end up 99:99:99 counter.
I’m using the CD4026BE ic’s cc 7 segment displays and the 1N4148 diodes.
Any constructive help welcome.
Hello, do just one thing. Use AND gate IC instead of using 1N4148.
Thank you Sir! I will give that a try! BTW, I really love your videos! Are you a teacher, if not you would have been an excellent one!
Thank you for supporting my videos. I'm an Electronic hobbyist.
@@John-nu4rp did it work after the changes? I'm stuck at the same stage
@@ananthakrishnan874 Yes, I used 1N4007 diodes instead of what is shown in this video.
Also, he has great mod60 only video where he uses the 1N4006.
th-cam.com/video/yb2kA-8ceDI/w-d-xo.htmlsi=bXSeMZjINdwIeR6h
It's very good. 👍👍👍
Bro plz i want a protues diagram also plz do it
Very nice project
what's the input power?
Power consumption is less than 1 watt. 5v, 500mA power supply is enough for this circuit. Current flow is between 100mA to 150mA.
Anyone pls tell that what is 4026?
It is a CMOS IC from 4000 logic family and it drives 7 segment display (common cathode).
To know more about this, please watch this video:
th-cam.com/video/HuVM-GvXMK8/w-d-xo.html
If I'm doing this in tinkercad, which device can be used by replacing 4026?
Sir I won't full diagram please help me
Sir pls make 12hr. Common anode Sevensegment clock using arduino nano+ds3231+
Bro i want only for seconds
Sir Please provide circuit diagram link
👍👍👍
I finally get it. I'm an idiot
apnar ghorita to 12 ta baja na
Good video , but can I replace ic7408 instead of ic7400?
Because I dont have the ic7400 now
If that is possible give me the circuit diagram for new ic7408
You can use 7400 ic instead of 7408 but you can't use 7408 ic instead of 7400.
Ok, I'll give you two options, you can use 4011 or 4093 ic instead of 7400. But don't forget to see the pin diagrams. Study the pin diagram and then use it.
@@EEWave
Good idea friend , thx for ur help
Not:: IN4148 Not zener diode ......
bro give digital circuit
At 12 o clock shows 00-00-00, not useful. but you done lot of work. Ok fine.
What about the displays that have 4 digits? I'm just wondering how you would handle those without an mcu?
5:42 1N4148 aren't Zener diodes. They are small signal fast switching diodes.
Can I use 33 pf capacitor instead of 30pf capacitor keeping the resistance same?
No you can't because the oscillation of ic depends on value of capacity and resistor
What type of transistor you use?
My project is not working(only the pulse generator part). The pulse is generated but the seconds are not increasing and even the buttons are not working I checked the circuit multiple times but still it didn't work. When I asked someone they said they didn't understand the use of the 2nd 4060 ic, and if i try to use the pulse generated by the 1st 4060 then the seconds act like milliseconds and the minutes act like seconds.
I haven’t finished all mod’s of this but built the pulse generator and the 2 seven segment displays.
It count’s beautifully, except for some unknown to me, mine runs from zero to 99.😢
Another oddity I encounter is that the pulse generator only works when I touch the IC1 4060. It’s not a short as I have built it 4 times on 4 different breadboards using different components with each build.
Anyone experience anything similar?🤔
@@John-nu4rp 0-99 i guess your clock is just too modern 😂.
Why did you use zener diodes instead of standard diodes?
We can use both. I've done the MOD60 counter using 1n4007 and this one with 1n4148.
good but wat no resistors 7segments thank you
What are the zener diode used for?
Sir this is very unique Idea to make a clock.it may be mod 13 clock. your videos are very helpful and easy to understand because you drow circuit diagram. your teaching skills are very good. sir I have a request please make a counter for cilling fan rewind machine which motor is auto stop after a set number of turns.
In my checklist I've included your request. But in this lockdown period, it is not possible for me to make this project. You've to wait for some weeks. I'm really sorry bro...
@@EEWave Hey he is not paying you ,no need to be sorry
Sir i scan all your video about mode i cant find the mode 24 in your heading about the video can you walk me thru that video sir tnx
Please follow the description below. You'll get the video link.
@@EEWave tnx for the reply sir
Your videos are really very very helpful
Sir I have a simple question. If the 7 segment display is common anode then what should I do? Should I connect the common anode to +6v bcc?
No, we can't. CD4026 doesn't support common anode display. If you want to design this with common anode, then you need ic 7490, 7492 and CD7447. The circuit will be little bit larger than this. However you can make common cathode display by yourself, here is the link:
th-cam.com/video/q3Bqs0Gsccw/w-d-xo.html
Or, you can use NOT gate ic with the output of cd4026. Then you can easily go for common anode display.
CD 4026 can't work directly with common anode 7 segment display , maybe we will have to use NOT gate inverters at its output and then to the common anode 7 segment display and its connect the common pin to HIGH
did he use flip flops?
Wow very nice project keep up the good work :))
Thank you very much!
Since you use the Zener Diodes on EFG Segments, which is interesting, because only in digit 6 those will light up together. But the digit should reset not on 60, but on 59. Not a big deal, but putting it out there if someone comes across why the EFG lines have a diode.
Please help i make this circuit but pulse isnt starting when i press button seconds counter start other button isnt working
Can i program this to count 24hours or per day? without resetting until i press the reset button?
IM NOT WASTING ANY TIME I LOVE IT THANKYOU VERY NICE DESCRETE CIRCUIT THAT YOU COULD USE TO MAKE 100S MORE CIRCUITS
hi i’ve made the circuit in the exact same way as explained but the pulse generator won’t work what to do?
Is there a slower explanation from 18:00 to 18:15
Sar urdu inglesh not degetal colck full video
i dont find 30pf capacitor in my area please give another alternative
OMG this is very helpful to me and to everyone thanks for this i;m always watching your videos thanks a lot and God Bless you sir
Thank you bro..
@@EEWave i have a question my brother ... in your previous video you're mod 60 and mod12 have a resistor between ic and 7 segment but here you there's no resistor?
Very good question. To minimize the display current and safety of the display, those resistors are recommended but not compulsory. As the clock circuit is large, with this the breadboard connection looks messy. To make it understandable, I just used the compulsory components. When you make it on PCB, then you should use those resistors.
@@EEWave now its very clear in my mind thank ypu so much for that... you know im always watching you're videos its very friendly video to me and it is easy to understand ... thank you my friend im from Philippines
@@EEWave now its very clear in my mind thank ypu so much for that... you know im always watching you're videos its very friendly video to me and it is easy to understand ... thank you my friend im from Philippines
How you give power supply??
We can't change hours value ?
can we make a stopwatch from this clock?
Iskh andr use hny wali chzon keh name bta dein
How do you make this to count down like a timer?
I really love this project 😍😍
very excelent