Interfacing Relay to PC

Question

0.00/5 (No votes)

See more:

I would like to control my modem using relay and c# code. The c# code should be able to turn on and off modem at pre set time(the relay should act as a switch that turns on at required time).I am not sure how to start?
I am using 12v relay(sugar cube).can i use serial port to control the relay? if so how do i do it?
Please help.

Posted 8-Feb-12 19:36pm

ravi369

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Sergey Alexandrovich Kryukov · Accepted Answer · 2012-02-08T19:50:00

Look at this CodeProject article:
Control Physical World Through Computer (Step by Step)[^].

You can develop it all by yourself. First, learn the specifications and the standards of RS-232 which is used for COM ports: http://en.wikipedia.org/wiki/RS-232[^], see also: http://en.wikipedia.org/wiki/Serial_port[^].

To work with the port programmatically, use the class System.IO.Ports.SerialPort, see:
http://msdn.microsoft.com/en-us/library/system.io.ports.serialport.aspx[^].

Optionally, you can consider using parallel port:
Control Electrical Appliances using PC[^],
I/O Ports Uncensored - 1 - Controlling LEDs (Light Emiting Diodes) with Parallel Port[^],
Computer Controlled Watering System with C# or VB.NET[^].

—SA