Hello I'm not very good at wiring schematics. I tried to follow it as best as i can but kind of lost. i have a
HCPL-817-50DE and i found a datasheet Here. I need help on wiring it up to my Arduino. What I'm trying to do is control my reset button on my Computer. I got the Anode and Cathode part. But it's the other side I'm confused on. I have the resistors that is needed But not sure how to wire up the rest. an someone please help me?
Joseph
Well, if you would do us the courtesy of reading How to use this Forum, you will get an idea of how much is missing from your post--and because it's missing, there is little hope of giving you a clear answer. For example, you say "Reset on my Computer". That just isn't enough to go on--like what kind of computer, for instance? And even with that, we probably need a photo, or some indication of the reset circuit on said mystery computer. Or, at least what processor the computer is using--but still, there might be a separate reset circuit.
Hello yeah i know i messed up i was in a little hurry when i was leaving at the Door I'm going to rewrite this post over in a bit as soon as i wake up. My fault there.
You should not need a resistor on the output (collector/emitter) side, but you will need one on the input (anode/cathode) side, perhaps 330R. Assuming it is a standard ATX PC motherboard, you can wire the collector and emitter directly to the reset pins. Only question is, which way around, as they are often not marked as + and - , so you may have to try it both ways.
Hello Paul thank you. I was unsure if i needed a resistor on the output side. I did find a image online at someone tempting to do this here. So i tried it and nothing. But at the time i couldn't find my 1k resistors or my 10k resistors. I tried a 100ohm to 220ohm resistor that wasn't working. About 15 minutes ago i found my 1k and 10 resistors and i have tried a 1k resistor That seem to do the trick. I only found that link for another Post about 35 minutes ago. I didn't have a lot of time to test everything. But that seem to do the trick and Now everything seems to be working. Thank you all for the help. IT was a resistor problem all a long i thought i was doing something wrong with the wiring.
Your link does not work.
1K is a little too high, but might work. 10K is definitely too high. 100R and 220R should be fine. Maybe you misread the colour bands and they were actually 100K and 220K? Check them with a multimeter.
I am assuming, here, that you are connecting the resistor in series with the anode/cathode (does not matter which).
PaulRB:
Your link does not work.
Sorry. That's because I forgot to edit out the quotes, and extra "http://" the forum code likes to stick in there!!
All fixed!
But, all you have to do is go to the "General Electronics" page [one up in the navigation chain]. The link is near the top of all of the Forum categories.
@reverseEMF I was not talking about your link, old chap. I was talking about the OP's link from post #4. But that seems to be fixed also now.
Hello ReverseEMF i fixed the link. It does this when i post a link that i forget to take out the http:// in it. When it automatically adds it. So i fixed it. I didn't notice it after i posted it and i did edited it.
But to answer Paul i added a 10k Resistor instead of a 1k resistor And that seems to work with no problem.
These resistors i have are 1k and 10k resistors i also have 100ohms and 220ohms resistors. I do multimeter them so i can see what the values they are. I have a hard time remember color bands. But i always have a multimeter with me when i use and check them for there values.
josephchrzempiec:
Hello ReverseEMF i fixed the link. It does this when i post a link that i forget to take out the http:// in it. When it automatically adds it. So i fixed it. I didn't notice it after i posted it and i did edited it.
Yes, that's an example of code being annoyingly helpful!