controlling the AND gate with c#

[PIEBALDconsult]

I'd use the parallel port instead, and I have done so in the past. Here's the article that helped me get going: I/O Ports Uncensored - 1 - Controlling LEDs (Light Emiting Diodes) with Parallel Port[^]

[aeman]

hmm i have seen this article but it seemed to b very difficult:( m beginner... but from this code i have selected some piece of code to light the LED. but not sure if it is ok or not.

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Threading;
using System.Timers;

namespace LED
{
public partial class Form1 : Form
{
public int i = 0, j = 0, adress = 888;

    public Form1()
    {
        InitializeComponent();
        Reset\_LEDs(); 
    }
    private void Reset\_LEDs() // Makes all the data pins low so the LED's turned off
    {
        PortAccess.Output(adress, 0);
    }

    private void Form1\_Load(object sender, EventArgs e)
    {

    }

    private void button1\_Click(object sender, EventArgs e)
    {
        int value = 0;
        value += (int)Math.Pow(2, 0);
        LoadNewPict\_D0();
        PortAccess.Output(adress, value);
    }
}

}

what is LoadNewPict_D0(); function doing? will this piece of code ON the LED? thanks 4 help

[Luc Pattyn]

PIEBALDconsult wrote:

Parallel Port

what is this parallel port you speak of? is it that big connector I think I once saw in the Science Museum? :)

Luc Pattyn [Forum Guidelines] [My Articles] Nil Volentibus Arduum

Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.

[PIEBALDconsult]

aeman wrote:

value += (int)Math.Pow(2, 0);

Isn't that just 1? :wtf:

aeman wrote:

LoadNewPict_D0();

I think that's what's altering the images on the form he has, you don't really need it.

[PIEBALDconsult]

No, no, parallel connectors are actually rather petite, a mere twenty-five pins.

[Luc Pattyn]

PIEBALDconsult wrote:

Isn't that just 1?

Theoretically, yes. With all the rounding errors in floating-point math, who knows, it could be slightly less and get truncated to zero... Why make things simple when you can make them look highly scientific? :)

Luc Pattyn [Forum Guidelines] [My Articles] Nil Volentibus Arduum

Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.

[aeman]

at this time m chking with only 1 LED.

[shivamkalra]

I would suggest you to read this article, it it very helpful. I made something very similar last year, to control LEDs from the parallel port, and this article helped me a lot. I/O Ports Uncensored - 1 - Controlling LEDs (Light Emiting Diodes) with Parallel Port[^]

[shivamkalra]

This better way of getting 1. value += (int)(Math.Pow(Math.Sin(3.2), 2) + Math.Pow(Math.Cos(3.2), 2) + (8 / Math.Floor(8.7)) - 1);

[PIEBALDconsult]

You might want to look into the shift-left operator anyway.