Search results

  1. Martaine2005

    Code or hardware issue?

    Thanks @bertus. I did read that a couple of days ago. As I’m using the same code data for each pixel, the host ram (arduino) should be able to handle it. It’s not a code for complex animations which would require more ram. But in the interest of accuracy, I’ll try the setup with an Uno and Mega.
  2. Martaine2005

    Code or hardware issue?

    // these libraries must be installed prior to uploading // includes #include "SoftwareSerial.h" #include "DFRobotDFPlayerMini.h" #include <Adafruit_NeoPixel.h> #ifdef __AVR__ #include <avr/power.h> #endif // set number of pixels in strip int numPix = 16; // set pin to control neopixels int...
  3. Martaine2005

    How to post code?

    I’m sure I’ve seen code posted on here before but I can’t find any way of posting my code. Is there a code box?. Or am I mistaken and saw it on the arduino forums?. TIA
  4. Martaine2005

    Just Curious about PCB's

    A printed circuit board (pcb) is simply a board with tracks on it that connect various electronic components together to make a circuit. Your question seems very AI. Basic tips so that you can make sense of it?, very strange question. Tip 1, An open circuit won’t work. Think of a light switch in...
  5. Martaine2005

    Identifying mosfet

    Hi, according to a Chinese website it’s a 650V 7A N channel. But I couldn’t get the data sheet. Perhaps someone else can?. Try putting ‘AP’ in front of the 07.
  6. Martaine2005

    Realistic STA 2100D won't come out of "safe mode"

    Hi, the first thing I would recommend is to see if any YouTube videos have your fault. As you’re not very technical, it would be difficult to advise you. I would personally check the output transistors first. Edit: you have disconnected everything and tried to power it on?.
  7. Martaine2005

    Two LM7805’s

    No. The outputs are powering different devices.
  8. Martaine2005

    Two LM7805’s

    Thanks @AnalogKid . Both negative terminals are electrically connected to tabs. It was a school boy question. If you don’t know, ask an expert!. Cheers AK
  9. Martaine2005

    Two LM7805’s

    That’s a really good point that I never considered. It’s simply that I have loads of them. Thanks @danadak
  10. Martaine2005

    Switching between two arduinos to drive an LED rope (novice question)

    Another great link, thank you. Bookmarked.
  11. Martaine2005

    Two LM7805’s

    Thanks for the clarification #Harald Kapp. I really should trust my brain:) I knew deep down but wasn’t 💯 sure. Regarding using only one regulator, I have loads and they cost nothing. Plus, it keeps it simpler for me. Thanks for the link, it’s a hard read (terrible English) but I’ll bookmark...
  12. Martaine2005

    Two LM7805’s

    This is probably the stupidest question ever!. Can the two regulators share a heat sink without insulating them?. My heart says no and my brain says yes as -neg and tabs are electrically connected. Both regulators are on the same 9V rail too. So are in effect already connected together via the...
  13. Martaine2005

    Switching between two arduinos to drive an LED rope (novice question)

    This is pretty much what I’m trying to do. But I’m no programmer and my code has #delay function which apparently makes it impossible for the arduino to multitask. Using the #mil function can do it but it’s also way over my head. I’m using two nano’s and two dfplayer mini’s with both outputs to...
  14. Martaine2005

    Earth to secondary gnd connection

    Are you talking about a transformer secondary?. If so, it’s a direct link to ground/earth. That would also mean it’s not an isolated supply. Please give more details as already mentioned above.
  15. Martaine2005

    Tibhar robo pro master PCB problem

    Table tennis!!
  16. Martaine2005

    mouse x7 xl-747h randomly stop responding

    The red and black wires.
  17. Martaine2005

    mouse x7 xl-747h randomly stop responding

    Is that glue holding the wires to the board?. Perhaps it’s gone slightly conductive and shorting?. That would certainly cause the voltage to drop fast. Scrape it off and see.
  18. Martaine2005

    mouse x7 xl-747h randomly stop responding

    Is that glue holding the wires to the board?. Perhaps it’s gone slightly conductive and shorting?. That would certainly cause the voltage to drop fast. Scrape it off and see.
  19. Martaine2005

    Pioneer SX-424 - Speaker Protection Board

    The switch that you bypassed A, B, A+B, did it have any circuitry on it?.
  20. Martaine2005

    Axial C testing

    It’s a bad capacitor. Testing an electrolytic capacitor with a VOM in what mode?. Continuity/diode mode will slowly charge the cap and the meters voltage will rise a bit. Testing in Resistance mode will of course indicate some sort of resistance, unless it’s open circuit. Bad capacitors do...
Top