Something like a Blog

Electronics:

AN7523 Is the most cool power amp for many electronics projects. Need only 12V poser supply, bridged output, and DC volume control

LM7171 is a very high speed 200Mhz, high current 100ma. Available in DIP format, work upto +18v to -18v

Visual C# .NET

Serial communication component (low cost) www.winsoft.sk

Pop3 email component (low cost) www.EmailArchitect.NET

SMTP email component (free) http://www.quiksoftcorp.com/freesmtp/

Generating a real microsecond delay in .NET

[DllImport("winmm.dll")]
internal static extern uint timeBeginPeriod(uint period);

[DllImport("winmm.dll")]
internal static extern uint timeEndPeriod(uint period);

private void Delay(long TimeOut)
{
    long hrRes=0, hrT1=0, hrT2=0, dif=0;

    timeBeginPeriod(1);
    QueryPerformanceFrequency(ref hrRes);

    QueryPerformanceCounter(ref hrT1);
    while(dif < TimeOut)
    {
        QueryPerformanceCounter(ref hrT2);
        dif = ((hrT2 - hrT1) * 10000) / hrRes; // for 1ms scale
        if (dif > 10) Thread.Sleep(1);
        else Thread.Sleep(0);
    }
timeEndPeriod(1);
}