2343Views24Replies

Author Options:

computer controlled relay Answered

I want to build a SIMPLE computer controlled relay. Not where u have the relay that is on when the computer is on, the kind where u have a program that has little buttons that u click to activate a relay.
Please help me!!!!!

24 Replies

user
ControlEverything (author)2014-07-07

Its really easy. Here:

USB: http://www.controlanything.com/Relay/Device/R15PL_...

WiFi: http://www.controlanything.com/Relay/Device/R15PL_...

We also have Serial, Bluetooth, Ethernet, and several other communication interface options.

Select as Best AnswerUndo Best Answer

user
sci4me (author)2010-02-01

im back and gonna keep triing

Select as Best AnswerUndo Best Answer

user
andy70707 (author)sci4me2011-06-03

I know this question is a few years old, but I've been looking through your profile and found it. If you're still looking for a solution, velleman do some nice kits. here and here, one of them is pre-assembled, and one is a kit and therefore cheaper (And more fun to build). Its a really great kit, if you are in the UK, you can pick it up in maplin, but if not, I think they do worldwide shipping. You simply connect it to a usb port, install their software, and you can control all the outputs with a simple button interface. They even have an iOS app so if you leave the pc its connected to on as a server, you can control the outputs on the go.

Select as Best AnswerUndo Best Answer

user
guyfrom7up (author)2009-11-06

does your computer have a parallel port?  if so, it's as simple as 1 resistor (for transistor), 1 transistor, 1 relay (duh), and one diode to protect your computer.  Software is also very easy, too.

If you want more in depth stuff, say you have a parallel port

there are other ways, but this is by far the simplist

Select as Best AnswerUndo Best Answer

user
sci4me (author)guyfrom7up2009-11-19

What should i do?????????????

Select as Best AnswerUndo Best Answer

user
guyfrom7up (author)sci4me2009-11-19

the second easiest way: arduino

Select as Best AnswerUndo Best Answer

user
sci4me (author)guyfrom7up2009-11-20

how would i connect the paralell port way? my dad does have a computer with paralell port, i think.

Select as Best AnswerUndo Best Answer

user
guyfrom7up (author)sci4me2009-11-21

see:
http://www.epanorama.net/circuits/parallel_output.html

Select as Best AnswerUndo Best Answer

user
sci4me (author)guyfrom7up2009-11-21

ok, now the problem is that i have no previous programming skills

Select as Best AnswerUndo Best Answer

user
guyfrom7up (author)sci4me2009-11-21

better start learning! lol

Select as Best AnswerUndo Best Answer

user
guyfrom7up (author)sci4me2009-11-22

usb is much much more complicated than this

Select as Best AnswerUndo Best Answer

user
sci4me (author)guyfrom7up2009-11-22

how complicated? im willing to do almost anything now.

Select as Best AnswerUndo Best Answer

user
guyfrom7up (author)sci4me2009-11-22

ok, well the simplist way to do it via USB is probably using an arduino.  Google arduino, it's a little device that can communicate to a computer via USB, you can write a little "sketch" (program) for the arduino, upload it to the arduino, and then write a program in a program callede Processing that communicates with the arduino

Select as Best AnswerUndo Best Answer

user
sci4me (author)guyfrom7up2009-11-22

cant i just find a program to control the paralell port and connect it? and also could i do serial with only the transistor, resistor, relay, and a serial connection?

Select as Best AnswerUndo Best Answer

user
guyfrom7up (author)sci4me2009-11-22

serial: I dunno, probably, i've never done it so I can't say anything.

Parallel Port: I think there was a program called CCCP (or something like that, maybe just my inner russian coming out xD), that did exactly what you want, all i remember was that it's icon was a little lightning bolt.

Select as Best AnswerUndo Best Answer

user
sci4me (author)guyfrom7up2009-11-22

i looked it up and unless im a moron, its not exactly what i want. but i didnt check the icon.

Select as Best AnswerUndo Best Answer

user
guyfrom7up (author)sci4me2009-11-22

how about:
http://www.hottimesoftware.com/download-1.htm

or

http://electronics-diy.com/parallel_port_controller.php

I think the name i remember before was PPC, parallel port controller, but thats a generic name so i'll never find the same piece of software.  The second one is similar to something you might want, but the first one probably has more features

Select as Best AnswerUndo Best Answer

user
sci4me (author)guyfrom7up2009-12-15

u know what, i think ill just buy a kit. i mean, i dont wanna, but........... it just wont work. i hooked an led to the pins like it said for testing, it was always on. and there was some dll. file that wasnt working. i dont no what to do.

Select as Best AnswerUndo Best Answer

user
sci4me (author)guyfrom7up2009-11-24

i meant to say the bottom one

Select as Best AnswerUndo Best Answer

user
sci4me (author)guyfrom7up2009-11-24

I am gonna try out the top one and if it works, then i wont need any more help, but ill tell u once iv tested it.

Select as Best AnswerUndo Best Answer

user
sci4me (author)guyfrom7up2009-11-22

iv been tryin and im havin a hard time.

Select as Best AnswerUndo Best Answer

user
sci4me (author)guyfrom7up2009-11-21
user
sci4me (author)guyfrom7up2009-11-08

sadly, i dont got paralell port.

Select as Best AnswerUndo Best Answer