Pages: [1]   Go Down
Author Topic: What's out there?  (Read 1067 times)
0 Members and 1 Guest are viewing this topic.
If I'm online, I'm in front of the computer. If else, I'm not.
Offline Offline
Newbie
*
Karma: 0
Posts: 12
I do not help for personal status or gain. The karma button is there because it's pretty.
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I've got an Arduino Mega 2560 and a bag of both normal and UV LED's, and I'm relatively new to Arduino. I've been able to control them with serial (Mostly based on DarthTater's Morse Code program http://arduino.cc/forum/index.php/topic,8243.0.html)
after the practice of blinking an led. Now I'd like to do something else.
Does your community have any suggestions for a dude
with a bag of assorted LED's and an Arduino?
Logged

Device: Arduino Mega 2560 R3
Experience: Done blinking LEDs. Looking for something new.

Left Coast, CA (USA)
Offline Offline
Brattain Member
*****
Karma: 361
Posts: 17263
Measurement changes behavior
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I've got an Arduino Mega 2560 and a bag of both normal and UV LED's, and I'm relatively new to Arduino. I've been able to control them with serial (Mostly based on DarthTater's Morse Code program http://arduino.cc/forum/index.php/topic,8243.0.html)
after the practice of blinking an led. Now I'd like to do something else.
Does your community have any suggestions for a dude
with a bag of assorted LED's and an Arduino?

Well building and programming a simple LED cube is a pretty neat project and a real step up in complexity. Even a 3x3x3 led cube (requiring 27 leds, and 12 output pins to drive) is a good stretch project that I would recommend.

Lefty
Logged

If I'm online, I'm in front of the computer. If else, I'm not.
Offline Offline
Newbie
*
Karma: 0
Posts: 12
I do not help for personal status or gain. The karma button is there because it's pretty.
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Oh, Cool! I don't have 27 LED's, but I'll see what I can do about it! Thanks, Dude!
Logged

Device: Arduino Mega 2560 R3
Experience: Done blinking LEDs. Looking for something new.

Indiana, US
Offline Offline
Full Member
***
Karma: 12
Posts: 204
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Hi Tvex,

Pick up some resistors too.  Do you know what values you need?

Pat
Logged

There are 10 types of people in the world, those that understand binary, and those that don't.

Central MN, USA
Offline Offline
Tesla Member
***
Karma: 72
Posts: 7171
Phi_prompt, phi_interfaces, phi-2 shields, phi-panels
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

I'd do an LED chaser or Knight rider grill or Cylon scanning eye. It's fun.
Logged


Central MN, USA
Offline Offline
Tesla Member
***
Karma: 72
Posts: 7171
Phi_prompt, phi_interfaces, phi-2 shields, phi-panels
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Yes, never go without resistors. Here is a tutorial on resistor calculation.

http://liudr.wordpress.com/2011/05/27/how-to-calculate-current-limiting-resistor-for-leds/
Logged


Offline Offline
Jr. Member
**
Karma: 0
Posts: 58
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

You can make a Arduino Cube like this, but smaller depending on how many leds you have

Logged

UK
Offline Offline
Shannon Member
****
Karma: 223
Posts: 12577
-
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Okay, here's the problem. I got my Arduino for Christmas, and I'm not even Twelve yet, so I don't have access to vast sums for resistors, LEDs and stuff. Can you recommend a 20 Dollar project?

You said you already had a bag of LEDs, which is great. You definitely need resistors to control the current through those LEDs. Perhaps you already have some, if those LEDs came in a kit. Otherwise, you would need to buy some. Fortunately they're relatively cheap. It's usually cheaper to buy a bag full rather than singly, and £5 - £6 would usually get you several hundred resistors.
Logged

I only provide help via the forum - please do not contact me for private consultancy.

Beijing
Offline Offline
Full Member
***
Karma: 3
Posts: 193
Skype name habib.derbyshire
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

You really should get some resistors, they're really cheap. You can also get some potentiometer and other sensors. There also very cheap. You can put leds in one row and make one chase another.
« Last Edit: January 01, 2013, 09:21:49 am by arduinohabib » Logged

What is man's best friend? The breadboard!

If I'm online, I'm in front of the computer. If else, I'm not.
Offline Offline
Newbie
*
Karma: 0
Posts: 12
I do not help for personal status or gain. The karma button is there because it's pretty.
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I apologize for my earlier impatience smiley.
Also, didn't define "bag" correctly. I've got 3 mini-packs of LED's from RadioShack. I've got 21 Assorted LEDs, plus 4 UV LEDs. Maybe "Baggie"?
I found a couple nice places to get led's and resistors for a good price:
http://shop.evilmadscientist.com/productsmenu/partsmenu/341.
http://www.ebay.com/itm/1-8W-Watt-82-ohm-82ohm-82R-R-Metal-Film-Resistor-0-125-W-1-50pcs-/221054490863
« Last Edit: January 01, 2013, 04:38:04 pm by Tvex » Logged

Device: Arduino Mega 2560 R3
Experience: Done blinking LEDs. Looking for something new.

Beijing
Offline Offline
Full Member
***
Karma: 3
Posts: 193
Skype name habib.derbyshire
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Those resistors are quite small, just 82 ohms. You should get some common resistors, such as 100 ohms, 200 ohms, 470 ohms, 1k ohms, 10k ohms, 100k ohms, and 1m ohms. They will help you a lot.
Logged

What is man's best friend? The breadboard!

Oslo, Norway
Offline Offline
Full Member
***
Karma: 6
Posts: 126
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

As you are on a tight budget I would recommend getting one or two of each of these:

LEDs: http://www.ebay.com/itm/100pcs-5mm-R-G-B-W-Y-ultra-bright-LED-kit-/220988641549?pt=LH_DefaultDomain_0&hash=item3373f3110d
Resistors: http://www.ebay.com/itm/New-400Pcs-1-4w-Resistance-1-Metal-Film-Resistor-Kit-Set-20-Kinds-Each-20-/390519047951?pt=AU_B_I_Electrical_Test_Equipment&hash=item5aecbfc70f

That would give you a lot of LEDs and resistors to start your learning experience.

/Henning
Logged

If I'm online, I'm in front of the computer. If else, I'm not.
Offline Offline
Newbie
*
Karma: 0
Posts: 12
I do not help for personal status or gain. The karma button is there because it's pretty.
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Wow! Of the 10 forums I've ever been associated with, this is the most supportive of the array. Thank you for helping me out.
.
Logged

Device: Arduino Mega 2560 R3
Experience: Done blinking LEDs. Looking for something new.

Pages: [1]   Go Up
Jump to: