Occupation: : 369Date of Birth : 1994-09-29Join Date : 2010-11-12Age : 22
Subject: Who press button first game Sun 03 Apr 2011, 6:55 am
Who press button first game
Description of Service
Electronic circuit used in competitions to see the rider, who pressed the button first .. "faster response"
Electronic circuit to test the fastest runners in the pressure Alzerosmanip Can run the district by 9-volt battery. When you press any buttons, the department You disable the other buttons. electronic circuit voice calls when you press a button
Explain the electronic circuit
S9 key is used to reset circuit and return it to its original position, and when you press thebutton Zeroing is to clear all within the integrated circuit IC1 and IC2 and become all the exits in the case of low means that the binaries are all at the sametime we keep the Become director of integrated circuit IC3 is high logical state 1 (Logic 1), transistor T1 is used as a key to running a small trumpet sound (piezo-buzzer) and ensures Provide enough current to run it. Capacitors From C1 to C8 negate Constant pressure Any button on any of the buttons if a pressure Button has not been lifted Finger for the next time it will be ignored if it does not lift his finger. Consumption circuit in normal case less than 1 mA in the case of any lighting Diodes Optical consumption is less than 25 mA.