Hi.. You have to choose up or down counter IC, configure the mode like up or down counter mode. However this gives 99 to 00 or FF to 00 based on thr IC use have selected. To start with the number u need, we need to load the count value in to the IC. there are such options in counter ics. You can make additional reset logic such a way that when count reaches to 00, instead of rollover you can load your count. If there is no restrictions of usage of microcontrollers, you can use Arduino for counter.... Modified another comment's reply.
@@RagaveshDhandapani Hi thank you so much for replying unfortunately we couldn't use Arduino do you know what is the best ic number for my usage? and do you know what is the pl input in ic 74191 sorry for so many questions
@@setayeshk1062 After reading the datasheet of 74191 and 74193 i find both of them is suitable for the up/down counting. Input will be the start count through the load operation and decide up/down counting. Check the lower/upper limit using additional reset logic circuit, once count reaches to that level load with the start count.
sir I have a problem my project is not counting by one it jump and it what can I do to .will it help if I add the value of the resistor connected ti clock A?
Thanks for your question. The following may be an issue 1. Clock pulse may be bit high frequency 2. Push button in the clock circuit is not addressing debouncing issue. U may use hardware denouncing circuit to overcome the issue. Or generate very low frequency Clock signal.
Hi thanks for watching. Do share and subscribe to my channel. It means a lot. Regarding your doubt.. select the part that has simulation model file in protues. It can be seen when u are selecting component, on the same windown u must see simulation model. If that window is empty, then choose another IC of same part number.
Design a counter that counts to 20 for 5 seconds, then counts backwards from 20 for 10 seconds, using sequential circuit logic. Use two 7-segment displays to show the counted numbers. Please and please help me this
I have a project to create 10 bit PRNG (pseudo random number generator ) I have created PRNG circuit using LSFR (shift registers) , but now I have to display my 10 bit output using 3 seven segment display ,but I don't know how to use 3 display simultaneously ..... problem I am facing is I can show upto 0-9 but for output 10-15 I can't display it 😕,what can I do?
in simple language i have 10 bit binary number and I want to display it using 3 seven segment display ,how to do it , I tried everything but I am not getting the answer 😶😶
Hi thanks for watching. Do share and subscribe. It can be done in by adding binary to using bcd convertor, however processing 10 bit data may be challenging. We can create counters like 7490 with very high speed clock to count... and the output as such it can be displayed. 10bits means 1023 should be the max number.. you need to check this and reset. Still it's high volume task. Keep thinking about or refer some article how to do it. I can't comment beyond this as it is your academic work.
@@sarabhian2270 is it compulsory to do with digital discrete ICs? If not use microcontroller boards such as arduino and generate random number, convert that value into digits, use multiplexing to select digit and display the 7 segment value. No need of any ICs except uC, display and transistor.
@@RagaveshDhandapani it is strictly prohibited to use any kind of MCU and PLD , using Arduino its very simple , I am trying to use create multiplexing circuit which will give me output . I have 4 days of time I hope I will complete it asap .thanks for your help and concern
@@nataliechristoper4883 yes. It requires additional reset logic circuit. Write down the count limit as binary.. refer to zero or one, You can figure out the logic circuit by carefully selecting certain bits. If count touches to the maximum number the reset should be triggered hence the count will start from zero.
Yes. That's why its called as bcd counter. Ie you can't get any other count such as 1010..1011..1100...1101..1110..1111. Refer data sheet.. One flip flop of this ic can be used to count 0 or 1. Hence easy to build clock circuit.
Hi thanks for watching. Do share and subscribe. It's not clear. If you mean to say, you want to use 7seg led without counter, yes you can do that. Connect vcc pin, then individual cathode pin of led can be connected to ground through resistor. Hence required segments can be made on or off.
@@phuongthaotranthi4266 you have to describe the logic clearly. Try to find out common led segment pins which will be always ON. Then remaining segment can be controlled based on your requirement.
Hi.. thanks for watching. Please do subscribe and share. Regarding your issue, download the datasheet named schs071b.pdf by searching cd4510. Then refer to the page 5., you must satisfy the required conditions for count. Hope this hint will help you to resolve the issue.
Check the arduino model in proteus, if not, you may get the library. Then, if u r using a new version, you can link to the project. If not, check the temporary folder to locate the hex file to the loaded. Contine to develop source code using arduino ide and simulation in proteus.
@@RagaveshDhandapani There is no error in the teacher code, but for example, let's say we will use 3 7-segment displays, let's say that there is an arduino uno card that sees this, there is not enough pins and a 3-digit number should be obtained, but how to establish a connection in proteus
@Gulden Cetin check the display requirements.. 7seg must mean, go for multiplexing or exclusive 7 segment display driver. If not, you can switch to i2c lcd. This needs just 2 wires only.
@@RagaveshDhandapani Sir, there is no problem with the LCD, I need to use 3 separate 7 segment displays. I connected all three of them separately and with efforts. I have set one to be active in order but it doesn't work
@Gulden Cetin check one of the videos in 8051.. I explained the multiplexing concept with the c program. Also, proteus has multiplexed 7seg display for quick and easy construction of the circuit.
Hi.. You have to choose up or down counter IC, configure in down counter mode. However this gives 99 to 00 or FF to 00 based on thr IC use have selected. To start with 20, we need to load the count value in to the IC. there are such options in counter ics. You can make additional reset logic such a way that when count reaches to 00, instead of rollover you can load 20. If there is no restrictions of usage of microcontrollers, you can use Arduino for counter.
@@RagaveshDhandapani thank you for your attention but I thought @Soheil Hosseini is in my class and just wanted to understand how is he with his project and did he understand the things that I'm stuck in them
Hi.. you can't do it directly. You need convert the states after 9 i e. 01010 to 11111 to 0001 0000 to 0011 0001. Circuit design may be bit complicated. You may try with GAL.
The method what I said is using digital logic only. You need to solve 6 (b5... b0) output bits having 5 variable(d4... d0) kmap. However, you can use Arduino or other microcontroller to read 5 bits and convert binary to bcd code to do the same. Then the converted value can be sent out through a port.
@@yahyakhan659 use clock through a RC circuit, it is considered as debouncing circuit. Or use one shot multivibrator circuit. Try to pull down the clock pin to ground through a 10k resistor.
Use the binary digits of 5 and 5, try to make reset logic. Ie reset logic should maintain low for all count and when you get 5 n 5, it should give high to reset the count sequence.
You have to design extra circuit using logic gates to reset the count when it reaches 65. Ie output lines of counters need to be used to get reset signal(0) using 0110 0101, rest of the count the reset signal pin must be 1.
Najeeullah Ahmed hi.. Design 555 timer circuit using the calculations. Or follow the link www.ohmslawcalculator.com/555-astable-calculator Then, feed the clock signal to counter. Make sure vcc for timer is 5v. Note, if you are looking for precise 1Hz signal its challenging to get using 555.
Yes.. You can. Need to reset using tens ic msb and ones ic bit 1 and 2. 1001 0110, its 96. Hence use all ones 1xxx x11x to form decode logic. Hint.Use two 2 input nand gate.
@@rossonerirb6632 same of two digit plus extra circuit for reset. Now we connected pin 2. 3. 6 permanent value based on datasheet. You need to remove that connection n connect output of nand gate.
@@RagaveshDhandapani You said that all i need is removing the connection of the four pins 7,6,3,2 and connect them with an output of a nand gate ! Am i right ? And what are the inputs of the nand gate ?
can we change it to up-down counter and does it have a load for counting from special number
Hi.. You have to choose up or down counter IC, configure the mode like up or down counter mode. However this gives 99 to 00 or FF to 00 based on thr IC use have selected. To start with the number u need, we need to load the count value in to the IC. there are such options in counter ics. You can make additional reset logic such a way that when count reaches to 00, instead of rollover you can load your count. If there is no restrictions of usage of microcontrollers, you can use Arduino for counter....
Modified another comment's reply.
@@RagaveshDhandapani Hi thank you so much for replying unfortunately we couldn't use Arduino do you know what is the best ic number for my usage? and do you know what is the pl input in ic 74191 sorry for so many questions
@@setayeshk1062 After reading the datasheet of 74191 and 74193 i find both of them is suitable for the up/down counting. Input will be the start count through the load operation and decide up/down counting. Check the lower/upper limit using additional reset logic circuit, once count reaches to that level load with the start count.
@@RagaveshDhandapani thank you so much🙏🙏
@@setayeshk1062 Can you watch the short video, just i made it as many have asked about it through comment and email.
Thanks, for this tutorial. I was able to do my project.
Thanks a lot. Do subscribe and share.
sir I have a problem my project is not counting by one it jump and it what can I do to .will it help if I add the value of the resistor connected ti clock A?
Thanks for your question. The following may be an issue
1. Clock pulse may be bit high frequency
2. Push button in the clock circuit is not addressing debouncing issue.
U may use hardware denouncing circuit to overcome the issue.
Or generate very low frequency Clock signal.
Sir i have made excatlty the same circuit but it shows some errors in U4( no model specified for u4) how i can resolve this issue
Hi thanks for watching.
Do share and subscribe to my channel. It means a lot.
Regarding your doubt.. select the part that has simulation model file in protues. It can be seen when u are selecting component, on the same windown u must see simulation model. If that window is empty, then choose another IC of same part number.
can i use 7448 IC instead of 7447
Hi
Thanks for watching.
7448 means common cathode display
7447 means common anode display.
Do share and subscribe...
Design a counter that counts to 20 for 5 seconds, then counts backwards from 20 for 10 seconds, using sequential circuit logic. Use two 7-segment displays to show the counted numbers. Please and please help me this
Hi.. sorry I missed out this. Moreover I can't help you to solve coursework.
I have a project to create 10 bit PRNG (pseudo random number generator ) I have created PRNG circuit using LSFR (shift registers) , but now I have to display my 10 bit output using 3 seven segment display ,but I don't know how to use 3 display simultaneously ..... problem I am facing is I can show upto 0-9 but for output 10-15 I can't display it 😕,what can I do?
in simple language i have 10 bit binary number and I want to display it using 3 seven segment display ,how to do it , I tried everything but I am not getting the answer 😶😶
Hi thanks for watching. Do share and subscribe.
It can be done in by adding binary to using bcd convertor, however processing 10 bit data may be challenging. We can create counters like 7490 with very high speed clock to count... and the output as such it can be displayed. 10bits means 1023 should be the max number.. you need to check this and reset. Still it's high volume task.
Keep thinking about or refer some article how to do it.
I can't comment beyond this as it is your academic work.
@@RagaveshDhandapani thanks for responding🙌, I am trying to get my answer ,I will definitely find my answer 👍👍
@@sarabhian2270 is it compulsory to do with digital discrete ICs? If not use microcontroller boards such as arduino and generate random number, convert that value into digits, use multiplexing to select digit and display the 7 segment value. No need of any ICs except uC, display and transistor.
@@RagaveshDhandapani it is strictly prohibited to use any kind of MCU and PLD , using Arduino its very simple , I am trying to use create multiplexing circuit which will give me output . I have 4 days of time I hope I will complete it asap .thanks for your help and concern
Thanks a lot! This helped with my project 👍
Great to hear that. This is just concept model..
Do subscribe and share.. watch other videos related to your subject.
Sir is it possible to stop the count at certain number? Because our project ask us to design a counter that counts from 0 until 380 using 7490
@@nataliechristoper4883 yes. It requires additional reset logic circuit. Write down the count limit as binary.. refer to zero or one, You can figure out the logic circuit by carefully selecting certain bits.
If count touches to the maximum number the reset should be triggered hence the count will start from zero.
Thank you so much sir! The only problem is it can't count until 380. It reset when the count reaches 379.
@@nataliechristoper4883 make it logic for 381... so it counts u till 380. 381 will be reset
I want to include set and reset button in this circuit
please help me
Hi do subscribe and share..
You need to refer to datasheet and find the proper logic and develop using logic gate for reset.
Why 74LS90 Resets when hit 1010 (10)? It is in build in counter or what?
Yes. That's why its called as bcd counter. Ie you can't get any other count such as 1010..1011..1100...1101..1110..1111.
Refer data sheet.. One flip flop of this ic can be used to count 0 or 1. Hence easy to build clock circuit.
@@RagaveshDhandapani I saw a datasheet everything is clear :D I will build one by myself using double flip flop and reset circuit :D
i wanna use 2 7seg led to display 2 digit(4bit). just display not counter. how to do? pls help me
Hi thanks for watching.
Do share and subscribe.
It's not clear. If you mean to say, you want to use 7seg led without counter, yes you can do that. Connect vcc pin, then individual cathode pin of led can be connected to ground through resistor. Hence required segments can be made on or off.
@@RagaveshDhandapani yeah, for example. i want to display "18" by 7seg leds. input is 10010. how to do?
without IC, just use logic gates
@@phuongthaotranthi4266 you have to describe the logic clearly.
Try to find out common led segment pins which will be always ON. Then remaining segment can be controlled based on your requirement.
it doesnt work for me use the 4510 counter but it doesnt count :((
Hi.. thanks for watching. Please do subscribe and share.
Regarding your issue, download the datasheet named schs071b.pdf by searching cd4510. Then refer to the page 5., you must satisfy the required conditions for count. Hope this hint will help you to resolve the issue.
@@RagaveshDhandapani how can i contact you?
@@mz8802 You may reach through email. However I can't provide any sort of support except giving hints related to the topic. Wish you all the best.
sir, how can we do the circuit using arduino in Proteus, can you help me?
Check the arduino model in proteus, if not, you may get the library. Then, if u r using a new version, you can link to the project. If not, check the temporary folder to locate the hex file to the loaded. Contine to develop source code using arduino ide and simulation in proteus.
@@RagaveshDhandapani There is no error in the teacher code, but for example, let's say we will use 3 7-segment displays, let's say that there is an arduino uno card that sees this, there is not enough pins and a 3-digit number should be obtained, but how to establish a connection in proteus
@Gulden Cetin check the display requirements.. 7seg must mean, go for multiplexing or exclusive 7 segment display driver.
If not, you can switch to i2c lcd. This needs just 2 wires only.
@@RagaveshDhandapani Sir, there is no problem with the LCD, I need to use 3 separate 7 segment displays. I connected all three of them separately and with efforts.
I have set one to be active in order but it doesn't work
@Gulden Cetin check one of the videos in 8051.. I explained the multiplexing concept with the c program. Also, proteus has multiplexed 7seg display for quick and easy construction of the circuit.
hi
how can make it count from 20 to 0 (down counting)
Hi.. You have to choose up or down counter IC, configure in down counter mode. However this gives 99 to 00 or FF to 00 based on thr IC use have selected. To start with 20, we need to load the count value in to the IC. there are such options in counter ics. You can make additional reset logic such a way that when count reaches to 00, instead of rollover you can load 20. If there is no restrictions of usage of microcontrollers, you can use Arduino for counter.
@@RagaveshDhandapani Thanks for ur suggestion . I'll try it.
salam bebakhsid shoma fahmidid ke bayad chikar bokonid?
@@setayeshk1062 sorry.. I can't understand other languages except English and Tamil...
@@RagaveshDhandapani thank you for your attention but I thought @Soheil Hosseini is in my class and just wanted to understand how is he with his project and did he understand the things that I'm stuck in them
Is it possibile to make it down count from 99 to 0?
Hi... You may use 74160.. Which up or down counter. You can set configuration for up or down
hi, how can i make 5 bit binary to bcd converter and display it with two 7segment? please help me, thanks alot
Hi.. you can't do it directly.
You need convert the states after 9 i e. 01010 to 11111 to 0001 0000 to 0011 0001.
Circuit design may be bit complicated.
You may try with GAL.
@@RagaveshDhandapani thankyou
@@RagaveshDhandapani I know that,but i cant do that, i will try
The method what I said is using digital logic only. You need to solve 6 (b5... b0) output bits having 5 variable(d4... d0) kmap.
However, you can use Arduino or other microcontroller to read 5 bits and convert binary to bcd code to do the same. Then the converted value can be sent out through a port.
@@RagaveshDhandapani ok,I search about that,thanks alot for answering
sir where we can put button
Hi thanks for watching. Do share and subscribe. Not clear about question. If u ask about push button it is available as component.
@@RagaveshDhandapani sir when i put button in diagram when i push the button it counts two number at same time what I do
@@yahyakhan659 use clock through a RC circuit, it is considered as debouncing circuit.
Or use one shot multivibrator circuit.
Try to pull down the clock pin to ground through a 10k resistor.
how to change the seven segment just until 55 ?
please help me mr
Use the binary digits of 5 and 5, try to make reset logic. Ie reset logic should maintain low for all count and when you get 5 n 5, it should give high to reset the count sequence.
Ragavesh Dhandapani can you help me to make the file up counter until 55 for me ?
I have a college assignment about it.please help me mr
Dear... I gave idea. You must implement.
how can make it count from 0 to 64
You have to design extra circuit using logic gates to reset the count when it reaches 65. Ie output lines of counters need to be used to get reset signal(0) using 0110 0101, rest of the count the reset signal pin must be 1.
thanks its very informative but I need to create 1Hz cycle through 555 ic can any one tell me about that
Najeeullah Ahmed hi.. Design 555 timer circuit using the calculations. Or follow the link
www.ohmslawcalculator.com/555-astable-calculator
Then, feed the clock signal to counter. Make sure vcc for timer is 5v.
Note, if you are looking for precise 1Hz signal its challenging to get using 555.
ok thanks
Thank you C:
Welcome.. do subscribe and share
Anyone had done this project practical ? i want some help!
Hi Moaz, Counter? It is basic counter circuit!! Yes!
Thank you 😊😊
Nisa Amalia... Thanks... pls subscribe and share.
heh bro i found this video very helpful and could you plz upload about creating a watch ?
Humza Wasim thanks. sure i will. i may take more time. please subscribe n refer to others.
gud job keep it up
Thanks a lot. Please subscribe and share.
Good
thkew so much plz make some more videos
Thanks for your feedback. Sure, I will.
Please share this channel with your friends. Do watch my video about Microsoft Word for formatting.
is it possible to make it count up from 0 to 95 only ?
Yes.. You can. Need to reset using tens ic msb and ones ic bit 1 and 2. 1001 0110, its 96. Hence use all ones 1xxx x11x to form decode logic. Hint.Use two 2 input nand gate.
@@RagaveshDhandapani
Using the same idea you used in the video or anything else?
@@rossonerirb6632 same of two digit plus extra circuit for reset. Now we connected pin 2. 3. 6 permanent value based on datasheet. You need to remove that connection n connect output of nand gate.
@@RagaveshDhandapani
You said that all i need is removing the connection of the four pins 7,6,3,2 and connect them with an output of a nand gate ! Am i right ?
And what are the inputs of the nand gate ?
@@rossonerirb6632 yes. No need all check data sheet.