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d, I'm trying to envision writing the software for this chip. I assume you need some kind of development tool where the program is stored until it is running as intended, this would have to include an

Kevin, Yes and I realized that I had misspoken right away. That's what comes when you spend seventeen year trying to teach students who don't the difference between a pot and a grid leak. (I had to

Doug, Needing resistance doesn't make it a resistor. :-) Jim

G,

I'm hereby signing myself out of the fuse vs resistor discussion since what I thought about fuses seems to be way out! :):) However, if anyone want to argue about PIC vs 68HCxx, then I'll join LOL

Mounir,

Fuses have resistance, that is true. Have you guys ever heard of electro-migration? This is the movement of metal due to current flow. It is a serious consideration in IC design. It is an interesting

Mark, Good point, but I still think it's a stretch to call a fuse a resistor. That in spite of the fact that conductors can get warm if they draw too much current. Yes, I know. I recall hearing about

It is interesting to note that Disney once sued Sony over the VCR. Seems they feared that the VCR would kill movies. Instead, the exact opposite happened: VCRs sparked a greater interest in movies.

Hello, Great discussion on fuses. Mark was correct in describing how a fuse works but failed to answer the question "Why are fuses not rated in units of power". Fuses have resistance. The resistance

Hello, For the microcontroller, you can use the Intel 8052 programmable chip for this purpose.Its easy to program the chip. Salman --- henrry <henrry@...> wrote:

Instead of trying to find an electronics supplier why not find a greeting card store that has them. -Mike verhap@...: _________________________________________________________________

Oh shoot. I misread your post. Thought you were looking for a datasheet for the package (like for making landpatterns or so). Get a datasheet for 7805 at www.freetradezone.com you'll sure to find in

Figure out which package and then go to http://www-us.semiconductors.com/package/ go under IC packages and you'll find pdf files for most of the packages that's out there Mounir

Hi! Do any of you have pinout of regulator 7805, which is in SMD package? Chip has 8 pins (2x4), (8L05A; PUYBC). Thank you for the answer in advance! Borut.

An Ideal fuse is a fuse that will have a structural falure at precisly the correct current. As I said in an earlier post about device failures, it is temperature that causes structural faliure.

Hi, resistance only dimension. I strongly disagree. An ideal fuse NEEDS to have some resistance. The reason why the fuse blows is because, as the electrons flow is increased, so does the cinetic

I would recommend the PIC16F877. Because of it's LVP (Low Voltage Programming) it can be programmed by using only a parallel port, 1 resistor and 1 transistor. The programmer is called the 2Bit. You

I would recommend the PIC16F877. Because of it's LVP (Low Voltage Programming) it can be programmed by using only a parallel port, 1 resistor and 1 transistor. The programmer is called the 2Bit. You

Hi there, your issue is probably that you don't get enough current flowing throug the relay to operate it. All depends of course on the characteristics of your relay. My suggestion would be to put