Design and construction of an electronic timer

Τίτλος

Design and construction of an electronic timer

Θέμα

Electronic clocks and watches

Δημιουργός

Ktorides, Lazaros

Πηγή

Higher Technical Institute

Το πλήρες κείμενο είναι διαθέσιμο από το Υπουργείο Ενέργειας, Εμπορίου Βιομηχανίας και Τουρισμού

Εκδότης

Library of Cyprus University of Technology

Ημερομηνία

2004

Συνεισφέρων

Kassinopoulos, M.

Δικαιώματα

Απαγορεύεται η δημοσίευση ή αναπαραγωγή, ηλεκτρονική ή άλλη χωρίς τη γραπτή συγκατάθεση του δημιουργού και κάτοχου των πνευματικών δικαιωμάτων

Μορφή

pdf

Γλώσσα

en

Τύπος

text

Αναγνωριστικό

EED0259

Σύνοψη

This project deals with the development of a Timer System (a Countdown timer) suitable for any kind of presentation and be visible to the speaker with some kind of indication-display (light indicator) in order to know when it is time for the current speaker to sit down and let the next person speak and with an optional loud warning
beeper gives an audible indication when the time is up. A number of different circuits were carefully studied and considering our objectives and their specifications we
concluded. After the selection the positive film and the P.C.B.were developed, the cOIfPonents were located in the appropriate locations and a test was followed to carry
out all the different response of the circuit.
The project also includes:
• The appropriate explanations and specifications of each different kind of timers
• A briefly explanation for the components used in our circuit
• A flowchart of the main program running inside the IC and the structure of the
interrupt routine
It is almost certain that if someone reads this project will gain a lot of information about timers and have an overall idea about what there is in the market about timers.