Digital clock ISIS Proteus simulation
These instructions are for two purposes, first understand and learn the basics of the serial port and use that knowledge to create a digital clock.
Digital clocks were built by countless electronics amateurs around the world. Then why did you choose to apply it?
All circuits available on the internet usually use a 7490 meter, microprocessors or Arduino plates. But not all of us have the means to buy microprocessors or boards of Arduino which is difficult to answer them all as much as it is expensive.I wanted to try a different circuit for the same, and its also because they require a lot of counters, counters based on product serial. When I say digital watch, you have to expect something like the one in the picture!
Almost all digital circuits rely on electronics, from traffic signals etc.to computers, on a hierarchical logic (importance). Therefore, you include the theory of permutation design serial organization hoping to help the reader in the design departments of their own.
I did my best for product design Serial the previous topic. However, if all you want is the watch, please skip everything . But if you went through those steps, you'll understand how to work with the flipping etc., despite the fact that it takes a lot of time, but I assure you that you will gain a lot of knowledge.
We have 24 hours . So, the clock we want is like this-second/ minute/ hour/ day (HH: MM: SS D). Now, the second SS can also be transmitted as S1 equals S0 units equals dozens and the same applies to the minute.
Calculated S0 from 0 to 9, then become S1 1 start S0 again. Our number of seconds is 0 to 59. So, the S1 meter should only count from 0-5. S0 charges 0-9. Thus 0-59 will be obtained. Now when the seconds are 60, it's one minute. So each time the SS reaches 60, the M0 (minutes) must be increased by 1.
M1 and M0 are calculated essentially in the same way as Seconds. So, one second pulse given to S0 makes the count of 0-9. When you reach S0 to 10, you must create a pulse to make S0 zero again, and S1 one and repeated the process to make S1 two and so on. Thus, S1 S0 is calculated from 0 to 59. Each time SS reaches 60, a pulse must be created to make one M0 and S00. For every 60 seconds, the SS will go to 59 and return to 0, as the MMS increase. Like counting the MM to SS, but MM receives the clock his (pulse operation) of the SS.
Remember that MM is also 0 to 59. Much like when, SS increases MM when it turns 0 after 59 (it doesn't become 60), MM must become 00 increase HH by 1. HH is count 1-24.
That's the logic of the circle. Therefore, we need to design a counter 0 to 9 for S0 and M0, and 0-5 meters for S1 and M1 and 1-24 for HH.
Almost all digital circuits rely on electronics, from traffic signals etc.to computers, on a hierarchical logic (importance). Therefore, you include the theory of permutation design serial organization hoping to help the reader in the design departments of their own.
I did my best for product design Serial the previous topic. However, if all you want is the watch, please skip everything . But if you went through those steps, you'll understand how to work with the flipping etc., despite the fact that it takes a lot of time, but I assure you that you will gain a lot of knowledge.
We have 24 hours . So, the clock we want is like this-second/ minute/ hour/ day (HH: MM: SS D). Now, the second SS can also be transmitted as S1 equals S0 units equals dozens and the same applies to the minute.
Calculated S0 from 0 to 9, then become S1 1 start S0 again. Our number of seconds is 0 to 59. So, the S1 meter should only count from 0-5. S0 charges 0-9. Thus 0-59 will be obtained. Now when the seconds are 60, it's one minute. So each time the SS reaches 60, the M0 (minutes) must be increased by 1.
M1 and M0 are calculated essentially in the same way as Seconds. So, one second pulse given to S0 makes the count of 0-9. When you reach S0 to 10, you must create a pulse to make S0 zero again, and S1 one and repeated the process to make S1 two and so on. Thus, S1 S0 is calculated from 0 to 59. Each time SS reaches 60, a pulse must be created to make one M0 and S00. For every 60 seconds, the SS will go to 59 and return to 0, as the MMS increase. Like counting the MM to SS, but MM receives the clock his (pulse operation) of the SS.
Remember that MM is also 0 to 59. Much like when, SS increases MM when it turns 0 after 59 (it doesn't become 60), MM must become 00 increase HH by 1. HH is count 1-24.
That's the logic of the circle. Therefore, we need to design a counter 0 to 9 for S0 and M0, and 0-5 meters for S1 and M1 and 1-24 for HH.
Digital clock project with timer 555 & IC 74LS90 & IC 7474 & 7 segment
- Content
1)Breadboard
2)Resistors and Capacitor
3) Logic Gates (SN7408)
4) 555 timer
5) Decade and binary counters (74LS90)
6) BCD to 7-segement decoders/drivers (4511)
7) 7 segment LED display
- BREADBOARD A breadboard also known as protoboard is a type of solderless electronic circuit building.You can build a electronic circuit on a breadboard without any soldering ! Best of all it is reusable. It was designed by Ronald J Portugal of EI Instruments Inc. in 1971. Building or prototyping circuits on a breadboard is also known as 'breadboarding '.In this instructable I will guide you how to use a modern breadboard to make simple circuits.
- Resistors…
- VARIABLE RESISTORS
1) Rheostat
2) Potentiometer
3) Preset
- TYPES OF CAPACITOR
1) Electrolytic capacitor
2) Non- Electrolytic capacitor
3) Variable Capacitance (varicap)
- GATES
Any binary operation (addition, multiplication etc) can be implemented using logic gates. Basic Gates AND OR NOT Derived Gates NAND NOR X-OR
8. AND Gate SN7408
9. 555 Timer IC
10. PIN CONFIGURATION
11. Decade and Binary Counters (7490)
12. BCD to 7-Segment Decoders/Drivers (4511) IC 7447 Pin Configuration
13. 7 segment LED display
For Download this project:
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