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166  Using Arduino / General Electronics / Re: 2n2222 Inverter circuit on: June 25, 2014, 08:16:49 am
Yes it should but...

I now wonder if you connected it up properly...
167  Using Arduino / General Electronics / analog fade in out RC on: June 25, 2014, 01:53:54 am
Basically I'll be turning a 4071 style knight rider 8 led chaser and on each led I use this circuit to fade in and out... giving a more realistic version in led form... the alternative is bump up the cap size to 100uf... and use 1 transistor.

I figured this is the cheapest modification on a 4000 series logic night rider circuit...
168  Using Arduino / Sensors / Re: DS18B20 return 0.00°C on: June 21, 2014, 10:33:21 pm
Swap the sensor....

169  Using Arduino / General Electronics / Re: IR LED with bigger range? on: June 20, 2014, 08:39:39 am
You could try a lower ohm resistor or add more IR leds... this may require a mosfet..
170  Using Arduino / General Electronics / 555 timer 12v... 15A !?!?!? on: June 20, 2014, 04:51:29 am
http://pages.ebay.com/link/?nav=item.view&id=110963396150&alt=web

Scam or inexperienced seller?
171  Using Arduino / General Electronics / Re: What LED colors have the same voltage and brightness? on: June 20, 2014, 03:27:59 am
Quote
Of course not, but that's not the point, is it?


Well kinda....

I have a 1.5vdc 100amp power supply off of 240ac....

100 amps through an LED = kaboooom smiley  (but it won't will it?.... no)
172  Using Arduino / Project Guidance / Re: I want to make a 120v 8 outlet chasing Christmas light controller on: June 20, 2014, 12:02:49 am
You need an 8 channel ssr relay.
173  Using Arduino / General Electronics / Re: What LED colors have the same voltage and brightness? on: June 19, 2014, 11:51:11 pm

No such thing as amps without voltage.

(Think a 1000volts in static next to no amps involved) the resistor drops the rest of the volts.
174  Using Arduino / General Electronics / Re: NPN to trigger relay not working on: June 19, 2014, 11:44:09 pm
This is why posting code is important...
175  Using Arduino / General Electronics / Re: What LED colors have the same voltage and brightness? on: June 18, 2014, 09:37:02 pm
I believe they call it band gap, each color (except white and pink and colors that are produced from phosphorous) / wavelength has a unique voltage, generally shorter the wavelength lower the voltage.

White is simply blue and doped phosphorus, so blue and white have a similar forward voltage drop.
176  Using Arduino / General Electronics / Re: NPN to trigger relay not working on: June 18, 2014, 09:16:22 pm
It's a bad transistor or it's not an npn! (Test the coil's resistance while at it)


A 150ohm to base, gnd to emitter etc...
177  Using Arduino / Project Guidance / Re: Vintage style lamps/LEDs for Arduino project advice? on: June 15, 2014, 09:27:02 am
Warm white leds.....

Mount them inside miniature lampposts.
178  Community / Bar Sport / windows and multiple sessions? on: June 15, 2014, 09:04:28 am
Game clouding,  the video is steamed over the net to your pc...

What about multiple windows (or linux or any other os for that matter) sessions and the video stream is delivered over wifi to any wifi enabled device (phone, tablet, etc), so unlike vnc which controls windows... an app that simply streams a virtual windows session to that mobile device over wifi...

How's the idea sound?
179  Using Arduino / General Electronics / Re: Relay on: June 15, 2014, 05:09:45 am
http://www.ebay.com.au/itm/5V-2-Channel-Relay-Module-Shield-For-Arduino-ARM-PIC-AVR-DSP-MCU-Electronic-CM-/360948437936?pt=AU_B_I_Electrical_Test_Equipment&hash=item540a3413b0

Cheap and simple, 5v (unless it's one of them which require 0v/gnd to turn on) ... the circuity to power the relay is included on the breakoutboard, all you do is signal high/low from a dig pin.
180  International / Humor y Debate / Re: distribuidor en tenerife on: June 08, 2014, 05:10:17 am
If i was living in Adeje still, i'd quite happily become a distributor...

lo siento amigo.
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