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  1. Arouse1973

    Need to build an interface between an audiometer and a set of LED lights

    Hi Amy, welcome to EP. The LM3914 seems a good option. Do you want the LED strips to stay on as the sound level increases or only light one strip at a time dependant on the sound level? Thanks Adam
  2. Arouse1973

    This some kind lightbulb or...

    It all depends on the type of bulb. See here for some useful info. http://www.shokaifareast.com/Products/Lamps/neon_selection_guide.htm Thanks Adam
  3. Arouse1973

    Can You Paint a Circuit Board?

    It's also advisable to bake the PCBs in the oven to remove any moisture before coating. Not sure on the temp needed so you may want to have a quick look. Adam
  4. Arouse1973

    Advice on wireless system design & components

    The only question I have is you say you need a minimum 18bit A/D. I don't think the 10 mV input of the Lab-jack is going to be low enough is it? You may need to amplify the input voltage and then do some scaling on it in software. Other than that it looks neat solution. Adam
  5. Arouse1973

    PIC16F877, 250Hz PWM

    Firstly welcome to EP. Secondly, it's quite a good idea to give as much information as possible of your requirements. Unfortunately you haven't. Questions I would like answered are : 1) What language are you programing in? 2) What is the % of duty cycle you require? 3) How far have you got...
  6. Arouse1973

    Inductance value problems

    Can you tell us a bit more about the project, maybe we can suggest something else? Adam
  7. Arouse1973

    Guitar Electronics .

    This makes no sense to me, Al you been drinking :)
  8. Arouse1973

    Converting Switch/Case statement in C to ASM?

    As mentioned above. The call function name is like a pointer to some code that does something. You cant put a value in it. Adam
  9. Arouse1973

    Converting Switch/Case statement in C to ASM?

    Ok I think I see what you were trying to do. Assembler is not like C where you can pass a variable to a function, assembler is a bit clunky you have to move something into W and then to where you want it to go. You could use the movff if the PIC you are using allows it. Some of the basic ones...
  10. Arouse1973

    Converting Switch/Case statement in C to ASM?

    But your movwf could be anything that's in the working register at that time?
  11. Arouse1973

    Converting Switch/Case statement in C to ASM?

    It looks like you are trying to move a literal to a call function. Adam
  12. Arouse1973

    Converting Switch/Case statement in C to ASM?

    Ah was it the movwf dc3?
  13. Arouse1973

    Adding a Diode or Two?

    The lower diode is only needed if you have a capacitor across the POT. Otherwise it is doing nothing. Thanks Adam
  14. Arouse1973

    Converting Switch/Case statement in C to ASM?

    John post the original offending code for us to see. Adam
  15. Arouse1973

    Killing SSR (relays) - Need to understand

    Hi JW Do you have a schematic of your circuit we can see. Welcome to EP BTW. Adam
  16. Arouse1973

    PIC programmer

    It wont, I checked first to see if it does. Adam
  17. Arouse1973

    PIC programmer

    Not if you use LVP. Adam
  18. Arouse1973

    Advice on wireless system design & components

    Welcome to EP. This is quite involved for a first project. You will need a micro for sure, I am thinking a multiplexer and a PIC micro. Can you tell us more about your project? Adam
  19. Arouse1973

    Newbie - Need some help w/ switching relays

    Hi Albe. Show us your schematic if you have one. Welcome to EP. Adam
  20. Arouse1973

    Fender Strat wiring question

    Ok so you want a PCB like the OBS? I could design you something if you could get some dimensions. Cost you about 5 quid if that. You would have to order the PCBs though. I assume this all mounts to the pick guard and you then wire the pickups and output jack into the connector? Adam
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