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  1. billy2

    EasyPIC5 Development Board + Extras

    Check here : http://cgi.ebay.ie/ws/eBayISAPI.dll?ViewItem&item=180560266241
  2. billy2

    MANY PIC Microcontrollers at a bargain price

    Check the listing here : http://cgi.ebay.ie/ws/eBayISAPI.dll?ViewItem&item=180446283833&ssPageName=STRK:MESELX:IT
  3. billy2

    Brand New USB PROGRAMMER PIC AVR EEPROM FLASH ASIX PRESTO

    For sale here : http://cgi.ebay.ie/ws/eBayISAPI.dll?ViewItem&item=180446083218&ssPageName=STRK:MESELX:IT
  4. billy2

    FOR SALE : ANT8 - 8 Channel USB Logic Analyzer

    For sale here : http://cgi.ebay.ie/ws/eBayISAPI.dll?ViewItem&item=180441199535&ssPageName=STRK:MESELX:IT
  5. billy2

    ibutton lock with PIC

    I am starting this topic because some people ask me about this. I have got some sample serial number ibuttons and I really want to play with them in order to make a locking mechanism. I keep searching the net for projects and ideas, so any contributions are welcome !!! What I have already...
  6. billy2

    Etching method

    Let's see...
  7. billy2

    PCB Etching Tank - Do it yourself

    Hi Everybody ! I have started to build my own PCB Etching Tank based on the articles I am attaching here. Soon I will publish all my efforts with photos and descriptions and I am hoping that it is going to be a cover story :) :) (if Mike likes it of course) !!! EtchingTanks.zip
  8. billy2

    A (simple) question about PSU

    I have found this schematic of a dual +-12v psu and I have a question about capacitors : I am aware that the two big 2200uF capacitors are for smoothing the transformer output and the two 10uF for providing a stable output from the regulators. But why are so many 100nF capacitors in parallel ...
  9. billy2

    EAGLE Layout Editor question (simple)

    All right, I just insert one simple component to my board, let's say a resistor from the rcl library. Well, the default diameter and drill hole are just too small for me. I press change -> diameter and I click the component. Nothing happens. I then press change -> drill and I again click...
  10. billy2

    Build a simple PC oscilloscope

    Hi all ! After I have bought my brand new usb logic analyzer :D (have a look : http://www.usb-instruments.com/hardware-ant8.html) which I need most, because digitals is my main hobby, I am thinking of building a simple pc oscilloscope as well, rather than buying a new one, because it is not...
  11. billy2

    Oscilloscpoe & logic analyzer

    Help me guys please !!! I really want a simple oscilloscope and logic analyzer, pc based, in order to 'see' in practice what I am reading and cannot understand :) I searched the web a lot but the cost is a bit high to me. The best I found is BitScope (www.bitscope.com), which is a dream for...
  12. billy2

    E12 Resistor Series

    I made this several years ago when I was a real newbie, but it still helps sometimes when the brain stops working :D Hope it helps ! 8) The_E12_Resistor_Series.pdf
  13. billy2

    Component dimensions chart

    Hello :) Is there any chart that describes the recommended dimensions of basic components for pcb design ? For example I have two resistors, 1/4 w and 1/2 w and a capacitor of 47uF/35V. Is there a way to know their dimensions in advance in order to decide how to place them on the pcb ? I...
  14. billy2

    PCB Drill Hole Sizes

    Hi all, I am very new to making my own pcb and I would really appreciate if anyone could give me some very basic guidelines of what hole sizes it is proper to drill for the basic electronic components. I have bought a set of 0.4, 0.6, 0.8, 1.0 and some even bigger drills. Thanks a very lot. :)
  15. billy2

    Excellent repair library

    I suggest the following URL : http://www.repairfaq.org/sam/sammenu.htm to be included in the Links section under the "Repair" page (which is currently empty). It is a thorough and very well written knowledge base for home appliances repair ! ;) Vassilis
  16. billy2

    Site Enhancements

    Two simple suggestions dear administrator : 1) Include a tab of 'All Projects' under the projects section if someone wants to see everything at a glance. 2) A larger list of the recent topics, not only the eight latest. There is no other way to see if you have missed something. Or, leave the...
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