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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by mammanoti

  1. mammanoti

    microcontroller advice

    Start at www.piclist.com read the 'beginner' stuff - that will head you in the right direction. Also go to www.microchip.com more details than you ever need and you could get free samples.
  2. mammanoti

    Final Coil gun post (hopefully hehe :))

    I have to ask; are you in the habit of scanning in your economics notes? Check out your link and remove everything past your name.
  3. mammanoti

    pic16f877

    What kind of picture do you want? If it is a layout or drawing go here: **broken link removed**
  4. mammanoti

    Need datasheet for an Ultrasonic Transducer

    I need the datasheet on an ultrasonic transducer I pulled out of a house alarm system. There isn't a 'name' on the part. It is the transmitter. Made in Japan two rows of numbers: 14621 and then 80,13. I also have the receiver which the only difference is the number 14618. This used to...
  5. mammanoti

    SCR - TRIAC - SSR

    Isn't the purpose of the optocoupler to isolate the the controller circuit? I thought that was why most applications that connect to a PC use optocouplers? That way the load voltage is isolated from the controller.
  6. mammanoti

    SCR - TRIAC - SSR

    Okay, got my PICs and havin' fun. Now I want to be able to turn on and off 120vac power outlets. I have found several things on the web. I want to stick with small and have found sites that say to use either SCR, Triac, SSR - all showing the same type circuit. So I pose my question to you...
  7. mammanoti

    PIC/BASIC differences...

    Basic Stamp is a trademark of Parallax, inc. The board actually has a PIC built on it that is programmed by you through PBasic or Parallax Assembly. PIC - there are a whole bunch of them, all with different functions and capabilities. The seemingly most popular being the 16F84 or 16F8XX...
  8. mammanoti

    Need Eprom Data

    Thanks for the info. Can you check the link, I haven't been able to get to it. I figure the chips would be obsolete, the guy I got them from bought a few dozen of each and never used them, he was cleaning out the closet. But if they can be used - I gotta do it.
  9. mammanoti

    Need Eprom Data

    I have a handful of two different chips: Intel d8749H or l5027188s and MM2716Q Manufacturer not listed.
  10. mammanoti

    Light Controller or rather Electrical Outlet Controller

    This is the situation: I have been 'collecting' controllers from christmas lights, some the sequence and others the do that and fades in/out. Up until now I would just wire the controller to the plugs and thus have 4 individual flashing/fading strings. The problem arrises when I add a third...
  11. mammanoti

    I need an idea

    [Actually, you could use a simple non dedicated Micro. Like right now, i'm working with 8085 micros. I know, it's a bit simple, but fun. Writting the program above would be easy. Yeah that is true, but getting the circuit down to 3 chips is the fun of it, sure you can do it with 10, but...
  12. mammanoti

    pc via dsl pc

    Yes and then again No. Yes, if you can setup a RAS Server (Remote Access Service) on the DSL subscription server. Then you would be able to dial into the server and then go out to the internet. Does this give you 'the computer with the modem' the speed at which the DSL computer is running...
  13. mammanoti

    exoust flame throwers

    You could do it the old fashioned way my uncle used to use. Drill a hole near the end of the tailpipe, put a spark plug through the hole and weld or use JB Weld to keep it there. Connect a wire from it to a switch (well insulated which runs to the positive of a coil. Tune the carb rich, gun...
  14. mammanoti

    Stepper Motor outputs??

    Maybe if you start here: https://www.cs.uiowa.edu/~jones/step/
  15. mammanoti

    Stepper Motor Control

    Here is a good place to start in your search in the world of CNC: http://www.seanet.com/~dmauch/ Here is another link that will enlighten your ideas of CNC and stepper motors. **broken link removed** It is a large and exciting world out there with CNC equipment. One reliable source...
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