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  1. Arouse1973

    Controlling a UK mains supply from a Raspberry Pi Piface

    Yes ok. Adam
  2. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    I see a proposition brewing here :) or you want one.
  3. Arouse1973

    Controlling a UK mains supply from a Raspberry Pi Piface

    Ok dumb questions, why can't you latch the relay on and then off just using the pin from the PI. Why pulse it? Cheers Adam
  4. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Ah, a little bigger than expected and a bit pricy. LOL:eek:
  5. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    I meant the machine you used. That looks really good. Adam
  6. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Woooow well cool. You just did that. I wants one of thems. What did you do that with? Adam
  7. Arouse1973

    Controlling a UK mains supply from a Raspberry Pi Piface

    Hello How do you want to turn the relay off? Thanks Adam
  8. Arouse1973

    Hello from Arizona

    Hi Todd Adam
  9. Arouse1973

    SMPS power supply

    Can we see a circuit diagram please. Adam
  10. Arouse1973

    Complete temp. detecting circuit-Need help tuning to desired range

    Yes that would be nice, thanks for keeping me in the loop. We so often never get to see things finished because people don't come back and let us know. Adam
  11. Arouse1973

    Complete temp. detecting circuit-Need help tuning to desired range

    Yeah go for it. I used to be dead against beginners jumping straight in to using micro's, but it seems the way they want to go nowadays. Adam
  12. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    My Gerber software can do it. Jeff I have a file for you but it is too big to post here. Give me an email address and I'll send it to you. Update, PICs arrived today so will be making up a demo PCB to test the software. I am on holiday next week so I don't know how much time I will have. I'll...
  13. Arouse1973

    Relay driver

    Again I haven't got a clue what your talking about. "You need to draw your circuit and tell us what your doing" Thanks Adam
  14. Arouse1973

    Making your own twisted shielded pair?

    Why not just get hold of some cheap FTP or FFTP network cables and chop the connectors off. They use quite small gauge wires so not sure if they will work for you. You don't say what signal the cable is carrying. You could join the wires together to increase current handling capability. Adam
  15. Arouse1973

    Old RS-232 compatibility with new computers?

    Hop https://www.electronicspoint.com/threads/nano-no-longer-working.270650/ Here is a thread that I had involvement in. I had two Nano's with CF FTDI chips. Mine worked great first plug in but then the second time DEAD!. I then found windows had written a 0 into the PID for that device. This...
  16. Arouse1973

    Will my circuit work? (trying to make a who pressed first quiz buzzer)

    Yes you could look at using either transistors as a latch of maybe some invertors (CD4069) or @Colin Mitchell added another form of circuit. There are lots of different ways to do things which is what makes electronics so interesting. Have a look at latches and resettable latches to get some...
  17. Arouse1973

    Anybody know where I can get a collection of electrical symbols clip art

    Guys stop posting on this thread. We have already covered this on another thread. Robert opened a very similar post with the same circuit. I noticed this and asked him just to post on the other thread to save confusion. Cheers Adam
  18. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Hi Jeff When you apply a reverse voltage to a diode, the diode is not a perfect insulator so there will be some current even in blocking mode. This current is called leakage current and is normally so small compared to the forward mode current that it is ignored. When you are designing low...
  19. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Hi Jeff Ok I have checked the circuit and apart from one issue all seems to be ok. The one issue I see maybe a problem is the leakage current of the schottky diode. Just looking at the Vishay part, it's leakage current is about 60 uA at 3 Volts at 25 degC, it gets a lot worse as the temperature...
  20. Arouse1973

    Leading and Lagging AC Power

    Thanks Ratch Adam
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