Control Electrical Appliances Using PC Circuit


Posted on Jan 25, 2013

Here is a circuit for using the printer port of a PC, for control application using software and some interface hardware. The interface circuit along with the given software can be used with the printer port of any PC for controlling up to eight equipment . The interface circuit shown in the figure is drawn for only one device, being controlled by D0 bit at pin 2 of the 25-pin parallel port. Identical circuits for the remaining data bits D1 through D7 (available at pins 3 through 9) have to be similarly wired. The use of opto-coupler ensures complete isolation of the PC from the relay driver circuitry.


Control Electrical Appliances Using PC Circuit
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

MCS08DZ60 Evaluation Board
Stand alone CDROM audio driver
Electronic potentiometer schematic
PIC16F628 Digital Clock Timer circuit and explanation
Arduino Calibration
10W audio amplifier with TDA2003
Quality Stereo Wireless Microphone or Audio Link
Electronic Door Release
Clapp oscillator



Top