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Geek Culture / I want to buy circuit board components ...

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Fallout
22
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Joined: 1st Sep 2002
Location: Basingstoke, England
Posted: 2nd Jan 2005 07:10
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Odd question for here, but I can't turn anything up on google. What I want to do is buy circuit board components (i.e. a mini circuit board, resistors, wire, solder, LEDs, 9V battery connector plugs, mini switch etc.). I'm building a lighting kit for my RC car so I can drive at night. Will look ace. It's DAMN hard to find a shop for this online.

Anyone know of any UK stores that may have a website? I dont really want to import stuff of this cheap price (I'll be spending £30 tops really!). Google is an arse for finding this stuff!

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Mnemonix
21
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Joined: 2nd Dec 2002
Location: Skaro
Posted: 2nd Jan 2005 07:20
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http://www.maplin.co.uk

The best shop in the world!!! If you like building dangerous things.

Its an electronics emporium, and is uk based .

The 3d chat is coming...
Rights For Traffic Cones!
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David T
Retired Moderator
22
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Joined: 27th Aug 2002
Location: England
Posted: 2nd Jan 2005 07:24
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And I was just about to suggest Maplin...

Get 15 new commands, all the date / time commands left out of DBPro for free!
DOWNLOAD PLUGINS HERE: http://www.davidtattersall.me.uk/ and select "DarkBasic"
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Fallout
22
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Joined: 1st Sep 2002
Location: Basingstoke, England
Posted: 2nd Jan 2005 07:34
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You bloody genius!

.... both of you!!!

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Benjamin
21
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Joined: 24th Nov 2002
Location: France
Posted: 2nd Jan 2005 07:58
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I was going to suggest it to, you two stole it off me >.>

CURRENT PROJECT: Chaos Hizzle Demo
STATUS: Release of BETA imminent!
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ionstream
20
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Joined: 4th Jul 2004
Location: Overweb
Posted: 2nd Jan 2005 08:02
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Wow, that place is awesome! I could build an infrared laser with the stuff they have there!


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Fallout
22
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Joined: 1st Sep 2002
Location: Basingstoke, England
Posted: 2nd Jan 2005 08:14
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Yes mate, this is a great site, and all the little components are cheaper than my sister! woohoo! Hooking myself with everything I need.

Thanks again for the linkage.

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Eric T
21
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Joined: 7th Apr 2003
Location: My location is where I am at this time.
Posted: 2nd Jan 2005 08:23
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Quote: "are cheaper than my sister!"


You know, when i say that i get slapped. Though usually i say it right next to her

<Mouse> lag, d'you like "real" RPGs? : <drac_work> ... : <drac_work> isnt that an oxymoron : * Mouse slaps drac_work :
<Mouse> don't contradict me bitch
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Shadow Robert
22
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Joined: 22nd Sep 2002
Location: Hertfordshire, England
Posted: 2nd Jan 2005 08:28
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lol...
Maplin are awesome for electronics, you can also checkout Tandy; as they can often provide soem good stuff to.


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Fallout
22
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Joined: 1st Sep 2002
Location: Basingstoke, England
Posted: 2nd Jan 2005 18:59
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Ok, I've ordered all the shizzles I need to make my RC hemi cuda shine brighter than the sun itself, but now I need to wire it up. Been looking at other RC lighting kits and basically I need to run a resistor for each one of my LEDs to get the input stats right. Anyone any good with this sort of stuff?

I'm using a 9Volt PPR style battery.
I'm wiring about 10 lights in parellel, each with their own resistor.
I need to work out what level of resistor to use for each light (the rear red are a different rating to the super bright whites at the front).

Time to get those maths/science skills cooking, or alternatively, suggest some more boffins to ask. I suppose I'm looking for an equation which takes into account what the LED can handle, and what the input voltage is (9V) and presents me with a resistor level in ohms that must be used to get the battery voltage/current down to what the LED needs.

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the_winch
21
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Joined: 1st Feb 2003
Location: Oxford, UK
Posted: 2nd Jan 2005 19:29 Edited at: 2nd Jan 2005 19:30
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http://www.7volts.com/led_resistor.htm
Quote: "To calculate resistance. Ohms law is V=IR. Solving for R yields R=V/I


V is voltage in volts, I is current in amps, and R is resistance in Ohms. V is the difference between the supplied voltage and the required voltage
Since we're using milliamps instead of amps, we need a multiplication factor of 1000
Since we're using the difference in supplied voltage and required LED voltage we need to subtract. The formula becomes

R=(12volts -LED voltage required)/(current in milliamps)*1000

LED's are very tolerant. Once you've calculated the resistance, you will use the closest resistor you can find. "


Quote: "this is not a quote"
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Fallout
22
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Joined: 1st Sep 2002
Location: Basingstoke, England
Posted: 2nd Jan 2005 19:40
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Actually, found a resistance calculator PHP thing, but it's good to know the maths is that simple, and they both arive at the same result. Nice one.

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Lost in Thought
20
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Joined: 4th Feb 2004
Location: U.S.A. : Douglas, Georgia
Posted: 2nd Jan 2005 20:05
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Maplin is ok but it takes forever to get stuff here. I just order from www.newark.com I can get stuff overnight and cheap in the States. If anyone from the States want to know.

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Pricey
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Joined: 22nd Feb 2003
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Posted: 3rd Jan 2005 22:41
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Maplin hardly ever have any stock

:: 1.8 gHZ AMD Duron :: 256 MB Ram :: 32 MB SiS Graphics ::

:: Current Project: Sea Bound ::
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Osiris
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Joined: 6th Aug 2004
Location: Robbinsdale, MN
Posted: 4th Jan 2005 06:08 Edited at: 4th Jan 2005 06:09
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post removed (ASCII text didnt work out very well)

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Ilya
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Joined: 10th Aug 2003
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Posted: 4th Jan 2005 10:58 Edited at: 4th Jan 2005 11:10
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Sweet! I could build a auto-opening thingy for my room and add a key to it... I like the green button better though.

Quote: "I've seen the word programming and I'm not sure what it means. Anybody please explain?"


Quote: "We shouldn't sacrifice the truth to preserve "balance"."
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Lost in Thought
20
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Joined: 4th Feb 2004
Location: U.S.A. : Douglas, Georgia
Posted: 4th Jan 2005 11:05
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You know when you see words like "thingy", people are talking about high tech stuff.

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