When you want to switch off the counter then pin 13 should be high. Clock Inhibit pin (pin 13) – It is used to switch the counter “on” and “off”. After 10 pulse it will again start from Q0 output.Ĭ. Like for first clock pulse pin 3 will provide you output similarly for next pulse pin 2 will provide output and so on. Clock pin (pin14) – Whenever pin 14 goes high it will provide you the output. Now after every third output it will automatically starts counting from zero.ī. If you want the counter to count up to third output then connect the fourth output to pin 15. Reset pin (pin 15) – It is used to reset the counter to zero.
It has 3 input and 10 output pins and one is ground pin and another is used for power supply and one is Carry out pin. It is also useful in many applications like Binary counter/decoder, frequency division, divide by N counting, Alarm system, Automotive etc. It is the most popular IC and extremely useful in various project like Light Chaser, Matrix Die. It take clock signal from the clock input and turn on the 10 output in sequence, each time when it receives clock input pulses. IC1 used is 4017– CD4017 is a 16 pin CMOS decade counter/ Divider. This circuit is based on three IC so before understanding the circuit let’s understand the working of individual IC.ġ. It will also have yellow light to alert the passengers or drivers that now there signal are going to open. There will be lights on both sides, like there is red light on one side and green light will be present aautomatically on another side. With this circuit you can control two way traffics. This two way traffic light project described below is a small model of traffic light which we daily see in our life on street. 7432 contains 4 individual OR gate on single IC. In this also output goes high when any of the input is high and goes low when all inputs are low. Output of OR gate goes high when any of the input goes high and if all input is low then output is also low7432 is a quad 2 input OR gate. It take clock signal from the clock input and turn on the 10 output in sequence, each time when it receives clock input pulses.4072 is a dual 4 input OR gate. It will also have yellow light to alert the passengers or drivers that now there signal are going to open.CD4017 is a 16 pin CMOS decade counter/ Divider.
The project described below is a small model of traffic light which we daily see in our life on street.
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