| Author | Views | Views Today | Rank | Comments |
| 159,914 | 71 |   |
160 |
| Author | Views | Views Today | Rank | Comments |
| 159,914 | 71 | |
160 |
| 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 |
| is it possible to use 4511 only with pic16f886 microcontroller? | ||
| hihi how to connect using 74LS192 and 7447 to a LED display.... but before that you need to input a pulse in right? what kind of pulse or clock i going to use? and how to connect it | ||
| To AbleMicky: BCD stands for Binary Coded Decimal. An example of a four bit BCD: 4 3 2 1 = Bit Number _______ 8 4 2 1 = Place Value 0 0 0 1 = 1 0 1 1 1 = 7 1 0 1 0 = 10 1 1 1 1 = 15 | ||
| hii. 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. i really apreciate your help.. | ||
| hi.. plz help me doing a circuit using a 2 single seven segment, using 74ls90 and 74ls47.. it is used in the bank or cashier which is a number system that will increment when the next customer is next.... and it has a sound... how can i do it..thankz.. | ||
| 2,3,5,7 AND 10 is sticked together (U1) for higher brightness, use 330 ohm | ||
| ground pins are acutally negative polarity 2,3,6,7 is connected with 10 either switch could be used, normally open/close | ||
| somebody pls help me with an equvalent of the 74c925 ic 4 digit counter | ||
| from what i have learnt so far the i.c converts bcd inputed to it to a 7 segment display.pls i wat you you to explain the word bcd in its totality.from where can i get a bcd output?i would really apprieciate if my request is favourably considered. | ||
| i've built a stopwatch using 555 timer and six 74190 decade counters connected to six 7-segment lcd displays but i can only get it to read 99:99:99. I'm having trouble getting every other counter to reset at 5 and trigger the next counter so the display reads 59:59:59. Any help you can offer would be great, thanks. | ||
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