같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같� 굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇� 께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께� COT v(1) COMPUTERIZED ELECTRICAL DEVICES with a simple PC Murat AYDIN 1997 께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께께� 굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇굇� 같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같같� This is a simple and resident program. It controls any external electrical device with neither special card nor windows but a simple electronic circuit is necessary. Type or power of the external device does not cause a problem. It works safety from 1 Volt to thousands volts. A simple lamp, frigidare, ventilation motors, lathe turner, stove or any heater can be connected to the computer. Original package includes the electronic diagram of a very simple circuit and a short TSR program activates the serial port. It is easy to use : When is light ON, external device works When is light OFF, external device stops WHERE IS THE TRIGGER SIGNAL ? In this version, 7.th pin of COM#1 is enable. A convenient connector must be prepared to the bellowing pin: GRND � � � � � � � � � � � � � � � � � � � 컴좔� � � � � � � � � � X 컴� X � ELECTRONIC CIRCUIT: Transistor Universal Npn (TUN) must be any powerful key-transistor. I am advise the use of 2N3055. The mechanic relay must be chosen according to specifities of electrical device used. This circuit (exception the mechanic relay) can be placed in computer's case. Moreover, computer's power outputs (5V and 15V) can be used as to be +Vcc supply of this circuit, because this circuit pulls 40-50 �A in its rest position but it is difficult to estimate activation current. It mostly depends on resistance of the mechanic relay used. However, usually activation current is about 80-150 mA. This quantity electric current can be easy tolerated by power system of any PC/AT. . . + Vcc O컴컴컴컴컴컴컴컴컴컴컴컴컴커 . (5-15V) � . 旼컴컴좔컴컴� � 旼좔� � � R 쳐컴컴컴컴컴컴컴컴컴> Any 1000�f 컨� � 쳐컴컴커 旼> voltage 읕쩡� 읕쩡� � � � � � � 읕컴컴쩡컴컴� � � TUN � . � 栢栢栢栢 � 7.th 1 K� 似켸C . � �DEVICE� � pin X O컴컴컴컴컴캅굉俳컫컴컴컴� . 栢栢栢栢 � �>커E . � � . 10 K� �<컴� � . � � � . GRND O컴컴컴컴컴컴컴컴컨컴컨컴컴켸 . . . <� to computer . Principle: When a positive trigger signal appeared at 7.th pin of COM #1 (this occurs when Scroll Lock was switched on), thus, base polarity of TUN climbs. This increment was limited by 10 K� rheostat. For this reason, this rheostat must be adjusted when the mechanic relay was not clicked despite to the fact that higher base polarity is present. Positive polarity of the base causes an increment of the current between collector-emiter. Thus, the mechanic relay clicks and device runs throughout the base polarity remains to be positive. Then, a negative signal appears at 7.th pin of COM #1 (this occurs by Scroll Lock was shut down), thus, collector-emiter current collapses, the mechanic relay releases, whereby, device stops. MAY IT DESTROY THE I/O CARD? No, this is highly safe method. However, avoid to make short-circuit between tips of the port. (especially between the pins of mechanic relay !!!!) Instantaneous contacts between serial pins have not a deleterious effect, if it does not extent over one hour or more. Take your own risk, or, in order to protect your I/O card, you must not omit to use a 1 k� (� W) of resistance with serially to the out-put pin. (This is not a prerequisite.) HOW CAN I CHECK THE CIRCUIT BEFORE RUN For this purpose, download the SQW_2.ZIP (45064 bytes) from: http://www.simtel.net/pub/simtelnet/msdos/electrcl/sqw_2.zip ftp://ftp.simtel.net/pub/simtelnet/msdos/electrcl/sqw_2.zip -or- ftp://garbo.uwasa.fi/pc/science/sqw_2.zip The SQW_2.ZIP is a Square Wave generator with a PC alone that includes a TEST menu. You can run it. It is very easy to use and just compatible with this program. Note: If you are have the source files, this program can be modified as follows: 1. Begin on a described date / a described hour Stop on a described date / a described hour 2. Begin on a described date / a described hour Continue with a described interruptions Stop on a described date / a described hour 3. Many ports can be triggered WITHOUT any special card All ports can work to be independed and resident =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= This program can be distributed by FREE OF CHARGE. When /if you need to the source files of newest version, send $5 and a message to me via E-mail. All comments and suggestions are welcome. Please send your comments and suggestions to the address below or e-mail them to: E-mail: muratay@pamuk.cc.cu.edu.tr Murat AYDIN, Ph. D. Dent. Department of Microbiology, Faculty of Medicine, �ukurova 쉗iversity Adana - T숽K쁚E or Murat AYDIN Kurtulus mah 298 sok 5/1 Adana - T숽K쁚E =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=