This is a quick arduino project that is great for beginners. Enjoy! There is a video on the last step!

Step 1: What You Need

To build this project you will need:

10 LEDs, any color will do.

Some wire, I used a ribbon cable I had

Most importantly, an Arduino

Perhaps some electrical tape

Prototyping board

Step 2: Build It!

Start off by arranging your LEDs on the proto board however you choose, I chose to place them in an oval shape.

After that, solder them to the board. After they are soldered, solder all the cathodes (shorter leads, - or the lead that has the flat side) together. Then, solder a wire to each anode (other lead of the LEDs) to a wire.

Step 3: Connect It to the Arduino and Program It!

Wire it up like schematic shows!

After you are done wiring it, you can start programming the arduino. I understand that there are many ways of bumming the code but since this example is for beginners, I made it as simple and understandable as possible.

void setup() {
void loop() {

Step 4: You Are Done!

power up your duino' and watch the lights!


The first person to make this project and post some images of it in the comments below will receive 1(one) patch acknowledging your accomplishment! Start Building! OFFER VOID PAST January 15, 2012
Mine works! Great instructable! It was an easy build but still pretty cool. And I just LOVE building stuff with LEDS! Thanks
I thought you did a great write up was wondering if you could help me with a project relating to the same thing
Great project! I hope the patch is still on. I made this video:<br>http://www.youtube.com/watch?v=veTh8TyFa_g&amp;feature=channel_video_title<br>:)
Well, I already gave the patch away, but I love it! I will definitely make an exception!
Thanks you very much, <br>Cheers!
Cool stuff! <br><br>Another way to write the loop would be: <br><br>void loop() {<br> int i = 1;<br> for (i = 1; i &lt;=10; i++) {<br> digitalWrite(i,HIGH);<br> delay(100);<br> digitalWrite(i,LOW);<br> }<br>}<br><br>Cheers!
Kind of late reply, I know, but there is a bug in your code. Your output will remain low for about 5 clock cycles. Depending on the speed of your xtal this could be very quick indeed. What you will end up with is the pin going high for 100ms, then going low, then immediately going high again for 100ms. The best you could hope for would be a very slight flicker, probably not discernible. A quick delay(100) after the last digitalWrite(i,LOW); would do the trick. Here is the updated code:<br><br>void loop() {<br>int i = 1;<br>for (i = 1; i &lt;=10; i++) {<br>digitalWrite(i,HIGH);<br>delay(100);<br>digitalWrite(i,LOW);<br>delay(100);<br>}<br>}
Oh snap! I totally missed that - good call!
Yeah I know about that, but it resets after every loop so it kinda delays after each time it goes around. Thanks!
Could probably do something similar using a cheaper 4017 + 555 combo but pretty nice regardless!
Ah, but then you would be stuck with a simple 555 timer and a fixed frequency. With an MCU you have MUCH more power over with what and how you drive your lights. Try making the cylon light programmable (or at least changeable in the sequence). Break out the soldering wick because you are going to be changing your circuit. With an MCU, I hook up my usb, burn my sketch (in the case of a 'duino) and I'm done.
Yeah I probably could have but this was mainly a project for beginner arduino users. Thanks for the comment!
You beat me to it, I was going to write an instructable regarding a circular LED chaser for a costume I'm doing (read attempting to do) I may expand on this using shift registers tho.
Great! I would love to see it! post an ible! Thanks for the comment!
I have expanded on this using a shift register IC (74HC595) you can read the ible <a href="https://www.instructables.com/id/8-LED-Chaser-with-74HC595-8-Bit-Shift-Register/">here</a>.
Shift register is a great way to create chaser lights! I've done the same myself. The best part is you can get certain light patterns based on numbers (if you have 8 lights you could think of each as a bit position in a binary number). You can get some really cool chase effects with that. I created a device that allows you to control the sequences from an RS232 port (or USB to RS232 converter). I've used Vixen and created a sequencer plugin for it. All based on that 74HC595!. One thing I ended up doing was add a transistor for each group of eight lights. That acts as a current source so I don't have a current surge nightmare on the 74hc595.
ok i made it. i didnt solder it on a perferbored because i need the leds someware else...<br>anyway
Cool! I'll send the patch right away! You have a video of it in action?
sorry no. but it does the same as yours!
I love your triangular LEDs could you tell me where you got them. <br>Great instructable.
I actually got them off of a broken analog/digital trainer. You could probably do a quick google search for them though. Thanks!
I think I got some in an assorted pak from ebay once :)
Very cool, i would consider maybe incorporating some resistors into it if you decide you want to slow down the chasing speed to save your LED's

About This Instructable




Bio: I love making things. I always found electronics and stuff like that fun. When I was little I always took apart my toys and put ... More »
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