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  1. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Hi Steve. I have not touched the brownout, I'll take a look. Adam
  2. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Ok so it will work. The additional transistor will be off and only when the original Mosfet turns off will it turn on. Only long enough to charge the cap which could be only a few micro seconds. It will then switch off and won't add additional drain to the circuit. I am off for a few hours...
  3. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Oh ok I thought this was something Kris added. Can we change this value ? The above circuit won't make any difference then sorry. Edit. Ah hang on, the 300R is parallel to the unit. It might work if the unit can supply enough current through itself when switched off.
  4. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Maybe something like this. Adam
  5. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    In your circuit you built you didn't have the 330R installed I guessed this was a maybe component. I'll take the feed from the battery where the 330R connects. The transistor will turn on a short while after when the MOSFET turns off. Adam
  6. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Design changes no problem. Are you thinking of making several of these? If so I will produce a manufacturing standard PCB for you if that's ok. With silk screen and solder resist and a proper connector so you can program it. I think the issue with the circuit is just the capacitor can't sup...
  7. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Here is my circuit diagram. I know it's a bit different to yours. I just have it powered all the time and I am driving an LED so I can see what is happening. And my port GPIO,0 is different as we know. The may help in understanding why it's not working. When I have time I'll make a small...
  8. Arouse1973

    Calculating frequency

    Yep! Don't forget to multiply the root also. 1/(2*pi*root(L*C)) Example: 1/(2*3.142*root(1uH*10nF) = 1.59 MHz 1 uH (Micro Henry) being 1*10^-6 and 10nF (Nano Farad) being 10*10^-9 Thanks Adam
  9. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Thankyou Steve. Yes sorry my bad, I should have explained what I wanted. Sorry Jeff. Thing is not knowing what level someone is at which could lead to someone feeling like they being treated like a child. I am aware of this so maybe I assume too much. Adam
  10. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Have a good day mate. We will get this going. It good night from me and good night from him. Adam
  11. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Ok I thought you changed the pin out, was that all you found wrong? Jeff dont get stressed let me look at it tommorow, its late over here I am off to bed now. But you could try it leaving your programmer connected and look in the programmer menu in MPLAB and see if there is an option to turn VDD...
  12. Arouse1973

    Controlling a UK mains supply from a Raspberry Pi Piface

    Yes you will if your selling it. The low voltage directive will need to be considered. Adam
  13. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Thanks Hop. I am working on the sleep side of it. I dont know if you can wake up the PIC with two stimulus, watch dog and port change. The thing is it needs to turn off when the button is pressed, so if its waiting for the watch dog to wake up it wont respond to the switch. If its too long in...
  14. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Let me look at the ciruit again. I may have missed something. Adam
  15. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Its not about playing along Jeff. If its powered from 5 Volts then the circuit should run without the need for the cap. It about trying to find out the problem. Thanks Adam
  16. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Ok so I am thinking it must be the cap. When you have time power the circuit from a seperate power source. Adam
  17. Arouse1973

    Hello to everybody!

    Oh..getting international Dave. I had to Google it :)
  18. Arouse1973

    Hello to everybody!

    Hello Adam
  19. Arouse1973

    Calculating frequency

    Hello. You want 1/2pi sqroot LC Adam
  20. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    If you can power the PCB from 5 volts and see if that works. Adam
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