gogo2520

Depends on the compiler. take High Tecks C compiler used on microchips. You can get a free trial version to try it out but it is not totaly optimizes like the program you buy, so the program you write and compile with the free version is biger(more lines of code) then the optimized version. second, the problem with using different C compilers not written for the microcontroller you have is the header files are missing and they just can't be copy and placed in a library because the compiler wouldn't know how to use them. most of the programs written for microchips are interperters that use the basic asm commands and the turn it into a more user friendly type language like C or basic. check out great cow basic once its a free compiler and commutity supported. http://gcbasic.sourceforge.net/ . there all written on top of asm wich is almost machine language have fun gogo

hello you could try a large run capacitor between the ac polls that should smoth out the feed back your are getting. gogo

the cd 4017 needs a clock to make it work, could use a 555 for that gogo

Hello ijap1012 this one will get you thinking Practical_Electronics_for_Inventors

thanks for the reply Hero999 I can see were I was wrong with the 24 volts, but it would still need a logic 5 volts to trigger it right. witch is ok because I need 5volts on the board to drive the rest of the logic chips. I guess I need to read some of the Pminmo help forms to see what they were talking about. Something about that particular mosfet. don't know I guess I will just have to read on. Studing the board as it is was worth the learning experience. But as soon as I figure out how the gates and the flip flops work together I plan on doing the driver a different way. The step motors I am using only need 12 volts at max so I could use a uln2803 for the drivers and I want to have opto isolation too. thanks again Hero

Hello I recently started a project, making a step motor controler board using IRLZ44 Mosfets (hex Mosfets) to control the power source to the motors. The way I understand them is they are either on or off no inbetween so if I set the circuit fo 12 volts when the mosfet is trigered 12 volts is sent. The board I am working on is using 5 volts for logic and 12 volts for the motor. Someware I read in order for the hex-mosfets to work the input voltage has to be twice the output voltage, so that would mean I would have to put 24 volts to the board, the step motors are only rated for 12. So back to were I don't know what I am doing. this is the board I am working on http://pminmo.com/3axis/3axis.htm thanks for any help you can offer. gogo

Good luck with that, caller Id or answering machine, if you don't pick up the phone and leave it up for at lest for a minute the caller isn't charged, so when I am around and a auto teller market calls I pick up the phone and sit it on the counter untill the phone starts to beeb. That way the caller is charged for the call. eventualy they will run out of money and stop calling. if everybody did that the auto teller marketers would stop. gogo

what are you trying to power up? batteries explode when they get to hot gogo

Hello RenMan We would need more information on this, like counting what coming out of a hole, what kind of power source is availibly how much room do we have. just give us some more info and maybe we could go from there. gogo

Hello here is a good place to shop online at they have different specials all the time http://www.alltronics.com/cgi-bin/category.cgi?category=5 gogo

Hello gettingold Problrm with linux is permissions, exspecail with USB ports.there is some stuff on the net for work arounds but you might have better luck using a microchip mcu instead. gogo

there are a lot of inexpensive 555 projects on the net, do some searching and see if you can find something you like

hello were there just the three of them or four? They look like plain rectifying diodes.

hello Iwilliams There is a couple of spinning led displays on the net here is one http://www.jwardell.com/about/juniorproj/intro.html I would use only 7 leds instead of 8 because of bcd to 7 segment conversion is much easier http://www.ece.mtu.edu/ee/faculty/gearcher/EElabs/EE2304/pages/week_4_bcd_to_seven_segment.html looks like fun, I would help but right now I got three projects going and I would really like to get at lest one done before I start into another one. have fun gogo

Ya perf boards and projects boxes have been around for awhile. The bigest selling point is price and there is a lot of cheap stuff out there. So unless you can sell your stuff for a couple of bucks and make it affordable to the hobbyest you won't do much. have fun gogo