Electrical Engineering V2 - Developers

Does anyone know where to get TRRS 3.5mm jacks? I've been googling all day, but I can't find any.

[QUOTE=Gulen;40442135]Does anyone know where to get TRRS 3.5mm jacks? I've been googling all day, but I can't find any.[/QUOTE] [url]http://www.ebay.nl/itm/3-5mm-1-8-AUDIO-VIDEO-IN-LINE-JACK-SOCKET-CONNECTOR-TRRS-4-PIN-WAY-POLE-/280777804286?pt=UK_Sound_Vision_Other&hash=item415fa949fe#ht_1169wt_1139[/url]

Yeah, I found those as well, but I'm looking for ones that I could fit on a board, but I've only managed to find breakout boards.

[QUOTE=Gulen;40442851]Yeah, I found those as well, but I'm looking for ones that I could fit on a board, but I've only managed to find breakout boards.[/QUOTE] [URL]http://www.majadu.co.uk/35mm-mini-jack-4-pole-4-way-pcb-mount-female-socket-solder-connector-bulk-x-4-1306-p.asp[/URL] I seem to have some small success when searching for [I]4-pole mini-jack[/I] or [I]four-pole mini-jack [/I][editline]wait[/editline] [URL]http://stores.ebay.com/Majadu-AV/3-5mm-Mini-Jack-/_i.html?_kw=3.5mm%20Mini%20Jack%204-pole[/URL]

[QUOTE=ddrl46;40442532][url]http://www.ebay.nl/itm/3-5mm-1-8-AUDIO-VIDEO-IN-LINE-JACK-SOCKET-CONNECTOR-TRRS-4-PIN-WAY-POLE-/280777804286?pt=UK_Sound_Vision_Other&hash=item415fa949fe#ht_1169wt_1139[/url][/QUOTE] Can you believe there's the same thing cheaper on Farnell? [url]http://uk.farnell.com/jsp/search/browse.jsp?N=215345+110128012&Ns=P_PRICE_FARNELL_LT%7C0&locale=lt_LT&appliedparametrics=true&getResults=true&suppressRedirect=true&isRedirect=&originalQueryURL=/jsp/search/browse.jsp%3FN%3D215345%26No%3D0%26getResults%3Dtrue%26appliedparametrics%3Dtrue%26locale%3Dlt_LT%26divisionLocale%3Dlt_LT%26catalogId%3D%26skipManufacturer%3Dfalse%26skipParametricAttributeId%3D%26prevNValues%3D215345[/url]

[QUOTE=alexaz;40446801]Can you believe there's the same thing cheaper on Farnell? [url]http://uk.farnell.com/jsp/search/browse.jsp?N=215345+110128012&Ns=P_PRICE_FARNELL_LT%7C0&locale=lt_LT&appliedparametrics=true&getResults=true&suppressRedirect=true&isRedirect=&originalQueryURL=/jsp/search/browse.jsp%3FN%3D215345%26No%3D0%26getResults%3Dtrue%26appliedparametrics%3Dtrue%26locale%3Dlt_LT%26divisionLocale%3Dlt_LT%26catalogId%3D%26skipManufacturer%3Dfalse%26skipParametricAttributeId%3D%26prevNValues%3D215345[/url][/QUOTE] I tend to ignore Farnell for small stuff, they require a minimum order of €50,- if you try to order as individual here.

[QUOTE=alexaz;40446801]Can you believe there's the same thing cheaper on Farnell? [url]http://uk.farnell.com/jsp/search/browse.jsp?N=215345+110128012&Ns=P_PRICE_FARNELL_LT%7C0&locale=lt_LT&appliedparametrics=true&getResults=true&suppressRedirect=true&isRedirect=&originalQueryURL=/jsp/search/browse.jsp%3FN%3D215345%26No%3D0%26getResults%3Dtrue%26appliedparametrics%3Dtrue%26locale%3Dlt_LT%26divisionLocale%3Dlt_LT%26catalogId%3D%26skipManufacturer%3Dfalse%26skipParametricAttributeId%3D%26prevNValues%3D215345[/url][/QUOTE] Farnell also have a minimum order of like £20 unless you have a trade account. Fuck ninja

Wow you guys are unlucky. AFAIK for Lithuania there's no minimum order amount and the shipping is free. EDIT: Nevermind the free shipping, it seems like the freight charge is included into every items price.

I'm thinking about skipping getting the TRRS sockets, and instead just getting two TRS connectors and a TRRS cable. I was gonna have to sockets anyways, and instead of having the third socket, I'm just gonna get a cable and solder it right onto the circuit. It seems TRS sockets are easier to get and cheaper, at least for a small project like this one. I'm making a controller/adapter for my phone, to fit with my [URL="http://facepunch.com/showthread.php?t=1250148&p=40367759&viewfull=1#post40367759"]helmet speaker setup[/URL]. I've already figured out how to do the back/forward button and of course the play/pause one, just need to get the microphone hooked up as well, and figure out how to make it water proof/get a box for it (if anyone got any tips/ideas, please let me know)

[QUOTE=alexaz;40441787]Are you planning to make a chromatograph?[/QUOTE] $250 budget spectrophotography challenge.

Bought a stepper motor to connect up to my Raspberry Pi via GPIO. Just need to think of something to do with it now.

Finished building my LED bench lamp. Used cheap ass 6 x 3 watt LED's from ebay ( 99p each ). The LED's are glued to an aluminum profile, then there's the reflector thats made out of cardboard and tinfoil ( ghetto ass reflectron 9000 ). And its powered off a linear regulator, so i'm wasting 6 watts in heat just by the regulator atm. [t]http://i.imgur.com/mDIVSXn.jpg[/t]

That's pretty nice, I need to add some proper lighting to my bench! Which Rigol is that in the background?

[QUOTE=r0b0tsquid;40516217]That's pretty nice, I need to add some proper lighting to my bench! Which Rigol is that in the background?[/QUOTE] Looks like a DS1052E / DS1102E (pretty much the same with some hackery).

hey guys, does anyone have any similar programs to [url]http://www.falstad.com/circuit/[/url] ? I find it quite interesting to play around with designs in real time, especially with visulisations like in the aforementioned app

[QUOTE=Em See;40531817]hey guys, does anyone have any similar programs to [url]http://www.falstad.com/circuit/[/url] ? I find it quite interesting to play around with designs in real time, especially with visulisations like in the aforementioned app[/QUOTE] Try LTspice or any other SPICE, just be prepared for incredibly weird controls. [url]http://www.linear.com/designtools/software/[/url] Also, guys, check this out: [url]http://www.ebay.co.uk/itm/300548691592[/url] I'm wondering if its too good to be true

[QUOTE=alexaz;40534182] Also, guys, check this out: [url]http://www.ebay.co.uk/itm/300548691592[/url] I'm wondering if its too good to be true[/QUOTE] Not at all, that seems a rather average price.

[QUOTE=alexaz;40534182]Also, guys, check this out: [url]http://www.ebay.co.uk/itm/300548691592[/url] I'm wondering if its too good to be true[/QUOTE] [url]http://www.ebay.co.uk/itm/100W-Warm-White-High-Power-Super-Bright-LED-Light-100-Watt-Lamp-Bulb-Chip-/360648624964[/url] go big or go home :c00l:

[QUOTE=alexaz;40534182]Try LTspice or any other SPICE, just be prepared for incredibly weird controls. [url]http://www.linear.com/designtools/software/[/url] Also, guys, check this out: [url]http://www.ebay.co.uk/itm/300548691592[/url] I'm wondering if its too good to be true[/QUOTE] yeah I've used LtSpice before, but it can't do realtime simulation - and one of the main things I love about that java app is how I can drop new components in place and see how they effect it right away, I don't have to make a circuit, hit run and then be presented with a bunch of numbers and/or graphs afterwards

[QUOTE=Em See;40543062]yeah I've used LtSpice before, but it can't do realtime simulation - and one of the main things I love about that java app is how I can drop new components in place and see how they effect it right away, I don't have to make a circuit, hit run and then be presented with a bunch of numbers and/or graphs afterwards[/QUOTE] Well if you want a decent level of accuracy real time simulation is simply not going to do it particularly on anything more complicated than a simple circuit, in addition the java circuit simulator is a very poor simulator with no proper device models which means you can end up with very wrong results. Once you get used to using SPICE based simulators it's a lot more powerful and just as easy to use.

lol fuk [img]http://i.imgur.com/xzjIFha.png[/img] [img]http://i.imgur.com/o7U9zaD.jpg[/img]

The fuck you been trying to make?

BREADBOARD evolved into... TOASTBOARD!

[QUOTE=alexaz;40550379]lol fuk [img_thumb]http://i.imgur.com/xzjIFha.png[/img_thumb] [/QUOTE] Boost converter?

[IMG]http://filesmelt.com/dl/555_schematic2.png[/IMG] This circuit [I]SEEMS[/I] to be working well on my breadboard, but is there any flaws you fellas can see that I've missed?? (except the missing resistor in-front of the LED's)

[QUOTE=Van-man;40560508][IMG]http://filesmelt.com/dl/555_schematic2.png[/IMG] This circuit [I]SEEMS[/I] to be working well on my breadboard, but is there any flaws you fellas can see that I've missed?? (except the missing resistor in-front of the LED's)[/QUOTE] What does it do ?

[QUOTE=Chryseus;40560955]What does it do ?[/QUOTE] Using a 555 IC as a PWM signal generator. It's basically a dimmer circuit, where you adjust the brightness of the LED's with the 10K pot.

[QUOTE=Van-man;40562445]Using a 555 IC as a PWM signal generator. It's basically a dimmer circuit, where you adjust the brightness of the LED's with the 10K pot.[/QUOTE] Seems fine to me, although I dunno what your doing with them diodes.

Finally got round to playing with my FPGA. Learning verilog and how to use ISE. Witness the innovation! [code]module main( in, out ); output out; input in; assign out = in; endmodule[/code] I call it the InOut 4000

[QUOTE=Chryseus;40562785]Seems fine to me, although I dunno what your doing with them diodes.[/QUOTE] Isolating which end of the trimpot adjusts Ton & Toff, by controlling flow (Not the best way to do PWM for a 555, but its an easy way)