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179 |
| Author | Views | Views Today | Rank | Comments |
| 261,375 | 232 | |
179 |
| This simple counter can be used to count pulses, as the basis for a customer counter (like you see at the doors of some stores), or for anything else that may be counted. The circuit accepts any TTL compatible logic signal, and can be expanded easily (see Notes). |
Schematic |
7 Segment Display Reference |
Parts |
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Notes |
Related Circuits |
Comments |
| I have a 12V DC fan motor, it have 3 wires, one of it, output the pulse width signal. Now I want to convert the pulse signal to speed (r.p.m) to show on 7 segment. How can I do it??? Thank you very much! | ||
| Please what is the function of LED's | ||
| hi we are facing the same problem of hear_Rock which is " i need to design a parking lot counter at basement parking. i need to use 2 sensor which is one at the entrance and exit. it will count the available space in the parking lot. if a car enter, the free space will be deducted. example from 100 to 99. it wil display at the 7segment at the entrance. so what i know to use is sensor, 7segment. the 7segment driver. i have to do this project by using microcontroller 8051 plz help n give me some guideline on schematic diagram or the equipment to use".we will really appreciate your help as soon as possible | ||
| i have a problem about my project i don't know how to connect them using 555 timer, 74LS92 and 74LS47 driver to make it counting 00-99, so i decide to ask from you guys if you know the diagram. thanks and God bless you | ||
| hello !!! how can we make it auto reset for this circuit ? | ||
| Hey All, Looks like an old thread but hey! Knowledge is great to share. To answer most of the questions here... Its simple, the IC that you are using comes with a data spec sheet showing functions and timing cycles. I am sure the answer is there. For the multiple use of the display or cascaded displays, thats easy too. When most counter reach max or preset cycle there is an output. Use this as the next clock input for each display in your chain of counters/display drivers. Should work out nicely. And a finally note, GREAT to see anyone and everyone alive and kicking. PEACE YA ALL!!! | ||
| When you expand and build another display, do both displays just simply count 0-9. Or would it actually count 10, 11, 12, 13 etc... | ||
| Hello, my name is Bobo. Nice design for newbeginner. Two 7segment can build become digital countdown trafficlight LED. Aaron can u draw complete design with 555 clocker. start 99 finish at 00. 36 SevenSeg ? cool Chandrakumar ! my 4026 don't have enough power to drive SevenSeg :-(. SevenSeg drv 4511=7447 and BCD counter 7490 = 4518) | ||
| what must be the input to 74ls90.... | ||
| i have completing the seven segment display using IC74190(pulse counter IC),7447(display show IC),555(pulse creating IC) .but my target is shown upto 999 from 000..it will be complete before december 20th.so if any one need help than plz contact me.i will give u all of the information about setup the seven segment display. | ||
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