Search found 115 matches

by hp
Tue Aug 17, 2004 3:52 pm
Forum: General Discussion
Topic: Connecting Car Power Amp
Replies: 10
Views: 1412

Re: Connecting Car Power Amp

The case for the amp is probably worth the 5 bucks. Just build your amp and put it in the broken amp's case.<p>Harrison
by hp
Thu Aug 12, 2004 7:55 pm
Forum: General Discussion
Topic: Power Switch for computer
Replies: 10
Views: 1747

Re: Power Switch for computer

Just write a program in vb to shutdown the computer when a pin on the serial port is driven high / low. <p>VB can read the rts / cts pin statuses using the mscomm control (well at least I think it can).<p>You can shutdown the computer using an API call or shell a 'shutdown' command. Maybe using the ...
by hp
Sun Aug 01, 2004 10:02 pm
Forum: General Discussion
Topic: P.C.Board design
Replies: 18
Views: 3430

Re: P.C.Board design

I use PCB123's software. It is great for my needs due to its simplicity. It even has auto route capabilities (its messy but it does work).<p>HP
by hp
Sun Aug 01, 2004 9:40 pm
Forum: General Discussion
Topic: PIC Programmer
Replies: 15
Views: 2896

Re: PIC Programmer

That programmer should support all of the PICs that the ICProg program supports. All you need when programming are the mclr, b6, b7, gnd, and +5v lines. The JDM programmer is fine for programming the 16F84, 16F876, 16F877 and other PICs.<p>HP
by hp
Fri Jul 30, 2004 7:25 am
Forum: General Discussion
Topic: P.C.Board design
Replies: 18
Views: 3430

Re: P.C.Board design

Mike,<p>I have been trying to make pc boards with the toner method and I haven't had much of a success. I am using the pcboards and etchant sold by radioshack. I am setting my laser printer to darkest 1200dpi resolution to achieve max toner output. But I do not get good transfer to the board. May I ...
by hp
Fri Jul 30, 2004 7:16 am
Forum: General Discussion
Topic: PIC Programmer
Replies: 15
Views: 2896

Re: PIC Programmer

I use Mbasic and PicBasic Pro to compile my basic code. All you have to do is open the hex file with the programmer software and hit the program button.<p>Harrison
by hp
Thu Jul 29, 2004 10:26 pm
Forum: General Discussion
Topic: LED Sequencing
Replies: 10
Views: 1821

Re: LED Sequencing

If the sequence is linear then you could use a LM555 as a clock source and a CD4017 as a decade counter to control your LEDs. You could arrange the LEDs in different patterns to achieve different sequences.<p>Harrison
by hp
Mon Jun 28, 2004 7:20 am
Forum: General Discussion
Topic: Temp. circuit on page 66 of July N&V
Replies: 11
Views: 1637

Re: Temp. circuit on page 66 of July N&V

Take a look at this schematic:<p>Image<p>Harrison<p>[ June 28, 2004: Message edited by: hp ]</p>
by hp
Mon Jun 28, 2004 7:07 am
Forum: Computer Programming
Topic: Free Not-For-Resale Copy of Visual Basic .NET 2003 Stand
Replies: 26
Views: 14127

Re: Free Not-For-Resale Copy of Visual Basic .NET 2003 Stand

I wish it was possible to do that kind of conversion. But unfortunately, it is not possible, at least to my knowledge. This is partially due to the massive amounts of controls that vb.net has compared to the small number that vb6 has.<p>On the other hand, it is possible to convert a vb6 project over...
by hp
Sun Jun 27, 2004 6:23 pm
Forum: General Discussion
Topic: Temp. circuit on page 66 of July N&V
Replies: 11
Views: 1637

Re: Temp. circuit on page 66 of July N&V

Since the LM339 is a logic level output chip, all you would need is to stick a transistor and resistor on the output of the opamp. I would use a general purpose NPN (such as the 2N3904) and a 10k resistor on the base. Make sure you stick a diode on the relay coil so the kickback won't kill your tran...
by hp
Sat Jun 19, 2004 10:39 pm
Forum: Computer Programming
Topic: Free Not-For-Resale Copy of Visual Basic .NET 2003 Stand
Replies: 26
Views: 14127

Re: Free Not-For-Resale Copy of Visual Basic .NET 2003 Stand

All the programs created with .net studio require the .net framework. I haven't used .net since I noticed that it required the .net framework.<p>HP
by hp
Mon Jun 14, 2004 8:23 pm
Forum: Computer Programming
Topic: Free Not-For-Resale Copy of Visual Basic .NET 2003 Stand
Replies: 26
Views: 14127

Re: Free Not-For-Resale Copy of Visual Basic .NET 2003 Stand

The design part is the same. But the syntax is slightly different. There are more controls which is a plus. Other than that, the applications are the same.<p>HP
by hp
Mon Jun 14, 2004 12:05 am
Forum: Computer Programming
Topic: Free Not-For-Resale Copy of Visual Basic .NET 2003 Stand
Replies: 26
Views: 14127

Re: Free Not-For-Resale Copy of Visual Basic .NET 2003 Stand

I really dislike VB.net because it requires the target pcs to have the .net framework installed (which is about 43mb). It seems like visual studio .net is like java (which also sucks because of the java virtual machine versions and stuff). VB.net is also a big change from vb 6 because it is more obj...
by hp
Wed Jun 02, 2004 11:31 am
Forum: General Discussion
Topic: PIC Programmer
Replies: 15
Views: 2896

Re: PIC Programmer

Take a look at http://www.ic-prog.net/index1.htm for awesome programmer software (the software is free, fast, and supports almost all of the PIC micros + some eeproms and other micros). The software supports many types of programmers. Take a look at http://www.jdm.homepage.dk/newpic.htm for a compat...
by hp
Mon Apr 12, 2004 9:15 pm
Forum: General Discussion
Topic: Ramsey Kits
Replies: 4
Views: 1045

Re: Ramsey Kits

The LED thing seems to be a 8 pin PIC microcontroller based device. The PIC uses PWM to make the LED seem to fade through all the colors. It would be pretty easy to build, but the hardest part is to write the code that goes into the microcontroller. I did make a 'clone' of the ramsey kit one time. I...