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Topic: Which connector\outlet to choose (2-3 wires)? (Read 981 times) previous topic - next topic

artvolk

I need to connect temp sensor DS18B20 (parasitically powered) to my device. I'd like to have some socket to plug\unplug it. My first thought was simple headphones jack (stereo for 3 wires or mono for 2 wires). May be I'm missing something?

Thanks!

jezuz

Small JST connectors might work, but be careful - some are very tight and you won't have a fun time detaching and reattaching them too often.

artvolk

Thanks for the option, but jacks seems to be easier to get :)

u0421793

#3
Dec 12, 2010, 10:37 pm Last Edit: Dec 13, 2010, 08:59 am by u0421793 Reason: 1
I've shoved a DS18S20 into the 4-pin female connector of an old CD-rom audio cable.

Osgeld

headphone jacks short out as they are plugged in or yanked out, just something to keep in mind

cr0sh

I will not respond to Arduino help PM's from random forum users; if you have such a question, start a new topic thread.

artvolk

Yes, it seems that RJ is the winner, if jacks are shorten while plugging in\out.

cr0sh

RJ will probably be the cheapest; another option (more expensive, though) would be round DIN plugs/sockets (standard and mini-sized). Basically, you want to avoid concentric conductor plugs and sockets for anything carrying power. For signal-only connections, such plugs are fine (as long as the plugging/unplugging signal noise won't bother anything or can be filtered).
I will not respond to Arduino help PM's from random forum users; if you have such a question, start a new topic thread.

artvolk

#8
Dec 13, 2010, 06:55 pm Last Edit: Dec 13, 2010, 06:57 pm by artvolk Reason: 1
Quote

Basically, you want to avoid concentric conductor plugs and sockets for anything carrying power.

What is the reason for this? I've heard something about audio connectors that some of them connect ground first when plugging, others -- signals etc.

bill2009

I've used a bunch of simple connectors made i believe by amp.  The male part on the PC looks like this and the part on the connector wie is on the right in the pic below.  They come in 2-6 pin configurations and have served me pretty well.

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