FAQFAQ   GalleryGallery   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in   Forum RSS Feed   Hacked Gadgets Main Site 

RGB LED touch-activated microcontroller lamp

 
Post new topic   Reply to topic    Hacked Gadgets Forum Index -> LED Projects
View previous topic :: View next topic  
Author Message
dragonphyre
Newbie


Joined: 11 Apr 2007
Posts: 1
Location: USA

PostPosted: Wed Apr 11, 2007 2:12 pm    Post subject: RGB LED touch-activated microcontroller lamp Reply with quote

Yea. Big title. But It will be cool enough that it warrants it.

I am asking for HELP on this... Not a full-blown circuit, or anything, but help... Credits will be tracked, and given wherever help is given.

Basically I need a circuit that will control a RGB LED (links below for examples of what I mean) to cycle through various colors.

Being able to control multipal LED's would be a BIG plus (or else i'll have to build three seperate circuits which would be a pain.) as well as increasing the cool-factor by about eleventy-billion percent.

Having it run off of 3-4 AA Batteries would be a good thing as well.

I don't think this would be super-difficult to build. Then again, I've heard that before...

So, to recap:

1. Has to drive a RGB LED to cycle through colors. Random would be preferred.

2. Has to be turned on and off by a touch/capacitance switch. Brightness/intensity should be continued touching of the lamp. (full brightness to dim)

3. 3-4 AA batter power source. Can't go much higher than that, as there's no room in the lamp.

Here's what I'm looking at for LED's that I would use: http://tinyurl.com/256d8z

There are the super-bright 3W LED's but that would be overkill. not to mention really hot and the lamp would be running for extended peroids of time.

Anybody want to help? please?
Back to top
View user's profile Send private message AIM Address Yahoo Messenger MSN Messenger

Alan
Site Admin


Joined: 29 Jan 2006
Posts: 1399
Location: Winnipeg, MB

PostPosted: Wed Apr 11, 2007 10:22 pm    Post subject: Reply with quote

Sounds like a cool project, you will have to transistor drive the LEDs since the microcontroller will not be able to handle the current requirements for multiple LEDs. Have a look at this project for an example of how to transistor drive some LEDs. Note that since your voltage will be less you will have to have your LEDs in parallel (not series as shown in the schematic)
http://www.alan-parekh.com/fish_tank_lights.html

There are so many switch designs, here is a page full of them. Some simple others are very complex.
http://www.discovercircuits.com/C/capacitance-sw.htm
Back to top
View user's profile Send private message Send e-mail
anotherhackmember
HG Contributor


Joined: 10 Jun 2006
Posts: 32
Location: CA

PostPosted: Sun Apr 22, 2007 11:46 am    Post subject: Reply with quote

I made an RGB controller a while back and I know that it runs great from from 3-5v. All thats needed is the touch control.

Excerpts of the code:
'--DORGB(REG,GREEN,BLUE,TIME)
DORGB 249,249,249, 20
DORGB 0,0,0, 5
DORGB 249,249,249, 20
DORGB 0,0,0, 5
DORGB 249,249,249, 100
DORGB 0,0,0, 5
DORGB 150,125,75,100
DORGB 50,125,175,100




Back to top
View user's profile Send private message Send e-mail Visit poster's website
Alan
Site Admin


Joined: 29 Jan 2006
Posts: 1399
Location: Winnipeg, MB

PostPosted: Sun Apr 22, 2007 2:10 pm    Post subject: Reply with quote

Nice job on the small surface mount board Smile
Back to top
View user's profile Send private message Send e-mail
steve0
Semi Newbie


Joined: 18 May 2008
Posts: 6

PostPosted: Sun May 18, 2008 9:29 pm    Post subject: Reply with quote

It's good!Glad to see it!
________
Yamaha YZ250F


Last edited by steve0 on Thu Feb 03, 2011 5:32 pm; edited 1 time in total
Back to top
View user's profile Send private message Visit poster's website
hgcomer
Semi Newbie


Joined: 04 Nov 2010
Posts: 7

PostPosted: Fri Nov 12, 2010 7:53 pm    Post subject: Reply with quote

How old the thread is, but I still give my comments : very nice led light Very Happy
Back to top
View user's profile Send private message
rayleich
HG Junior


Joined: 13 Nov 2012
Posts: 10

PostPosted: Fri Dec 07, 2012 4:47 am    Post subject: Reply with quote

Seems good! Thanks for your contribution! Very Happy
_________________
rayleich
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Hacked Gadgets Forum Index -> LED Projects All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Powered by phpBB © 2001, 2005 phpBB Group