home equipment control using computer(parallel port)
home equipment control You might have seen in many places, equipments are controlled by computer. You can do this using computer ports. Different ports like parallel port,serial port,usb are the most commonly used ones. Parallel port is the simplest of them. Here I am going to explain how to control your home equipment. This circuit can switch ON/OFF 8 equipments which works at AC/DC with voltages upto 230V(depends on specification of relay you use). Number of relays depends on the number of equipments you want to switch. Here I am using ULN2803/ULN2003 for switching purpose. Normal relays of 12V/6V is used. lpt.exe is the software use to switch ON/OFF equipments.
home equipment control You might have seen in many places, equipments are controlled by computer. You can do this using computer ports. Different ports like parallel port,serial port,usb are the most commonly used ones. Parallel port is the simplest of them. Here I am going to explain how to control your home equipment. This circuit can switch ON/OFF 8 equipments which works at AC/DC with voltages upto 230V(depends on specification of relay you use). Number of relays depends on the number of equipments you want to switch. Here I am using ULN2803/ULN2003 for switching purpose. Normal relays of 12V/6V is used. lpt.exe is the software use to switch ON/OFF equipments.