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361  Using Arduino / Project Guidance / Re: Workshopping £1.40 Arduino-Compatible (£3.05 including USB!) on: September 05, 2012, 02:26:29 pm
That`s incredibly cheap!

You program the AtMega chips yourself?

Nice to see some arduino action from across the Bay! smiley

 
362  Using Arduino / Project Guidance / Re: "lazy Suzan" return to zero on: September 04, 2012, 08:13:56 am
Maybe overkill, but I`m thinking optical encoder strip or wheel from an old printer.

Or make your own...
363  Using Arduino / Project Guidance / Re: Arduino Clock Accuracy without external source on: September 01, 2012, 11:08:22 am
Alternative time source.
http://g7kse.co.uk/projects/arduino-msf-receiver/
364  Using Arduino / Project Guidance / Re: Counting arduino on: September 01, 2012, 04:13:50 am
I think he means that the count increases by one when any input when any input is greater than 150.

But what if more than one input is >150 at the same time?
365  Using Arduino / Project Guidance / Re: Stuck on pcb design layout on: September 01, 2012, 04:09:25 am
http://tinkerlog.com/2008/01/07/arduino-on-a-prototype-board/

Scroll down for the circuit diagram.
366  Community / Gigs and Collaborations / Re: Divert closed captioning on TV on: August 30, 2012, 06:48:27 am
Decoding the closed captioning track.



http://nootropicdesign.com/ve/

Text output to LCD or LED scrolling display, job done.


367  Using Arduino / Project Guidance / Re: brainstorming: how can I detect if the AC is on? on: August 30, 2012, 06:35:45 am
A current clamp sensor is the way to go, but another way would be...

Air conditioning blows air, right?
Attach PC (or other type) fan, monitor generated voltage from fan.
368  Using Arduino / General Electronics / Re: RX/TX leds on custom board. on: August 30, 2012, 05:04:32 am
You could always add a simple transistor driver circuit or logic buffer IC for the LED`s, if you want them to be brighter.
369  Using Arduino / General Electronics / Re: Resistor Color Code Finder App on: August 30, 2012, 04:57:45 am
Yes, I was taught the 'raw' version in the Air Force, no women in our class, but I'm sure they have changed that sense. However between my aging eyesight, and the many extra color bands added these days for various who knows reasons, and the weird shades of colors used sometimes these days, I always, always, measure the resistor as a final check. I have a good quality fluke model 45 bench DVM so I tend to trust it more then my eyesight. Wanting a smart phone to tell me the value of a resistor is just very very stupid in my opinion. If you don't own a decent DMM then you shouldn't be playing with resistors in the first place.

Lefty
Same here, aging eyesight means double check with a DMM.
You could even use your arduino to measure a resistor and speak the value.. smiley
370  Using Arduino / General Electronics / Re: Resistor Color Code Finder App on: August 29, 2012, 06:47:53 pm
http://blog.makezine.com/2012/03/06/iphone-camera-identifies-resistor-values/
371  Using Arduino / Project Guidance / Re: Would someone care to recommend / guide a (sort of) newbie? on: August 28, 2012, 06:15:40 pm
http://arduino.cc/en/Main/ArduinoWirelessShield

http://oomlout.com/a/products/ardx/circ-03/

372  Using Arduino / General Electronics / Re: Smart Glass and Arduino on: August 28, 2012, 09:56:19 am
No problem, would be interesting to see how you get on with the smart glass, as it seems to be a new product.
373  Using Arduino / General Electronics / Re: Smart Glass and Arduino on: August 28, 2012, 06:04:53 am
Could you not use an LCD screen with out the Backlight?
374  Using Arduino / Motors, Mechanics, and Power / Re: Looking for relay that can power pool pump?? on: August 27, 2012, 07:10:03 pm
For example:
http://www.ebay.co.uk/itm/Double-2-Pole-Mars2-Contactor-Relay-17327-240vac-30-Amp-/270742525081
or
http://www.google.co.uk/#hl=en&sclient=psy-ab&q=30+amp+contactor+relay&oq=30+amp+cont&gs_l=hp.1.3.0l2j0i30l2.0.0.1.8566.0.0.0.0.0.0.0.0..0.0...0.0...1c.OBGwVpPxYQc&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.&fp=5b119c90b7e6cfa6&biw=982&bih=680 smiley-grin
375  Using Arduino / Motors, Mechanics, and Power / Re: Looking for relay that can power pool pump?? on: August 27, 2012, 05:24:57 am
This is not stuff to mess with unless you *really* know what you are doing.

The way I would do it would be to have the arduino drive a smaller relay which controlled a mains contactor relay
http://www.allaboutcircuits.com/vol_4/chpt_5/2.html



Again, do not attempt this unless you really know how to wire high current circuits.
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