Rangkaian Stop Watch Digital Tampilan 7 Segmen

A digital stop watch built around timer LM555 and 4-digit counter MM74C926 with multiplexed 7-segment LED display. MM74C926 consists of a 4-digit counter, an internal output latch, npn output sourcing drivers for common cathode, 7-segment display and an internal multiplexing circuitry with four multiplexing outputs. The counter advances on negative edge of the clock. The clock is generated by timer LM555. The circuit works off a 5V power supply. It can be easily assembled on a general-purpose PCB. Enclose the circuit in a metal box

with provisions for four 7-segment displays, rotary switch S1, start/stop switch S2 and reset switch S3

First, reset the circuit by pressing S3 so that the display shows "000". Now open switch S2 for the stop watch to start counting the time. If you want to stop the clock, close S2. Rotary switch S1 is used to select the different time periods at the output of the astable multivibrator.

Circuit Diagram of Digital Stop Watch


Skema Rangkaian Stop Watch Digital Tampilan 7 Segmen

7 segment

Seven Segment is 8 pieces of LED array is arranged in such a way that was shaping up to 7 segments and 1 point that can be used to show the pattern numbers and some letters. there are two types of seven-segment LED Seven segment of the Common Anode (CA) and Common Cathode (CC).

Seven Segment


On picture above is the layout, naming seven segment each segment and 8 illustrate the fruit is packed as the LED array LED Common Anoda (CA) and an array of LED Common Cathode (CC). segemen seven controllers can be done directly, or through a pattern such as a driver IC 74LS47 to seven segment CA and 74LS48 to seven segment CC.

0 comments:

 
 
 
User Agrement & Disclaimer Disclaimer All files are found using legitimate search engine techniques. This site does not and will not condone hacking into sites to create the links it list. We will and do assume that all links found on the search engines we use are obtained in a legal manner and the webmasters are aware of the links listed on the search engines. If you find a URL that belongs to you, and you did not realize that it was "open to the public", please use the report button to notify the blogmaster of your request to remove it or email at circuitsmag[at]gmail[dot]com it will remove within 24 hours. This is not an invitation for webblog haters to spam with requests to remove content they feel that is objectionable and or unacceptable. Proof of URL ownership is required. NOTICE: This Blog Has Already Been Reviewed And Accepted By Blogger.com
User Agreement The creator of THIS PAGE or the ISP(s) hosting any content on this site take NO responsibility for the way you use the information provided on this site. These circuits here are for educational purposes only and SHOULD BE VIEWED ONLY. If you download any files to view them, you are agreeing to delete them within a 24 hour period. If you are affiliated with any government, or ANTI-Piracy group or any other related group or were formally a worker of one you CANNOT enter this web site, cannot access any of its files and you cannot view any of the HTML files. All the objects on this site are PRIVATE property and are meant for previewing only. If you enter this site without following these agreements you are not agreeing to these terms and you are violating code 431.322.12 of the Internet Privacy Act signed by Bill Clinton in 1995 and that means that you CANNOT threaten our ISP(s) or any person(s) or company storing these files, cannot prosecute any person(s) affiliated with this page which includes family, friends or individuals who run or enter this web site. IF YOU DO NOT AGREE TO THESE TERMS THEN LEAVE.