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  1. (*steve*)

    Need Advice: Software to Read an IC

    Depending on what you order, you should look at a breakout board because their pins (or pads) do not have 0.1 inch spacing.
  2. (*steve*)

    Got a question about driving LEDs?

    That is an interesting circuit. It seems to have a relatively low impedance for a constant current source. But given that it can operate from a very low supply rail I'm pretty impressed. I am actually looking for a constant current source (or a voltage regulator) which can run from one or two...
  3. (*steve*)

    Need Advice: Software to Read an IC

    The esp boards work fine. I've seen a project with a stack of them connected all at once.
  4. (*steve*)

    Working With 240v And Arduino

    Unfortunately, if you need to ask those questions its probably not safe for you to do it. Try to find someone competent to do the wiring and take their advice about the enclosure too.
  5. (*steve*)

    Thinking about opening an Electronic store: still worth it ?

    If people don't have access to both the internet and a reliable and rapid mail system, then yes.
  6. (*steve*)

    A Simple Diode Problem

    Firstly, can you explain in your own words what the voltage source Vs is doing?
  7. (*steve*)

    Working With 240v And Arduino

    Put it in a sealed box with either cables with strain relief or plugs/sockets and no external metal screws etc unless it is in an earthed metal box
  8. (*steve*)

    78L33 regulator

    If you are knowingly operating the device outside of its absolute maximum ratings then any problems are your own.
  9. (*steve*)

    1st Buck Converter Design Help/Advice

    One of the most important requirements is the current which must be supplied. Since modeling the circuit is a significant issue, you might try contacting TI to see if they have one for this chip. Alternatively, look for a chip that does have a readily available model. In general, for a...
  10. (*steve*)

    PCI breakout?

    What you want is an extender board. This plugs into your PC and the card plugs into it, raiding it sufficiently that you can work on it. Now, the problem is, are they available?
  11. (*steve*)

    Signal is periodic or aperiodic

    Please take note that we DO NOT give answers to homework. Please assist us in this task. A better answer would be to get vead to tell us the difference as he understood it between periodic an aperiodic signals and then to ask him to apply this to his case.
  12. (*steve*)

    1st Buck Converter Design Help/Advice

    If you want to start simple then there are plenty of simpler options. What are your requirements? Why do you want to simulate it? What I'd your skill with electronics?
  13. (*steve*)

    Help Identifying a Battery

    Weeeell, kinda. But they would likely have very distinct + and - markings and you'd be unlikely to see 2 in series like you have here. What is the recommended charge time? Tens of minutes to hours?
  14. (*steve*)

    Question about PTC fuses

    The temperatures we've been quoting are C. I hope it doesn't get to 85degC she you are :D
  15. (*steve*)

    Obscure high power electronic device,what is it?

    In answer to the second part: Insulation
  16. (*steve*)

    A website i made

    Normally threads like this are degrees as spam and the poster banned. I saw this thread just after you posted it and decided to let it pass. However I've now decided to move it into the homework section since you're asking for feedback on your homework (possibly before getting it finally...
  17. (*steve*)

    Question about PTC fuses

    The trip current is essentially the current required to heat them to the tripping temperature when they are in the low resistance state. The hold current is the current required to keep them at or above the tripping temperature once they are in the high resistance state. What happens between...
  18. (*steve*)

    Obscure high power electronic device,what is it?

    This is a very high voltage low current device. A spot welder is a low voltage high current device. Those red blocks, if they are voltage doublers, are unlikely to be the sort of thing you can use backwards.
  19. (*steve*)

    Arduino Mega2560 & GRBL .....

    Maybe a random thought, but could you have overwritten the boot loader when you programmed it directly? I generally prefer direct programming over usb/serial programming as it reduces the amount of extras fluff I need on the board.
  20. (*steve*)

    One switch to rule them all

    Yeah, the above answers hint at the switch being used to control the DC and the DC controlling a relay to switch the AC... And Switching the AC (mains) which is also used to power your DC power supply. Both are good ways of keeping the (presumably) high voltage AC safely isolated from the...
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