Help Lighting 60 LED

Hi Everyone!

I'm new here and also just learning about Arduino, but I've watch some youtube tutorials for Arduino, it's excite me to try creating my own project, what I'm thinking is lighting a 60 pcs LED every second, which when it reaches 60 it start all over again, saying this, is there someone here that could help me on this? :sweat_smile:

Thanks in advance!!!

Sorry, your description is a bit confusing.

Do you mean lighting 60 different LEDS, one at a time in sequence like a light chaser, then starts again?

similar to this? http://www.youtube.com/watch?v=eDE3LZa8IVU

Yes that is right what I want to achieve here is to light up each LED every second, and when all are lighted up it will restart again actually it is similar to Clock project, as that I want to do. Hope this is clear, again thanks for your quick reply :)

Use a bunch of shift registers, such as TPIC6B595, or use a MAX7219. This board I offer can drive up to 96 LEDs without having to use multiplexing. http://www.crossroadsfencing.com/BobuinoRev17/

Hi All,

I would like to ask some help regarding creating a real time clock project, which has 60 LED for the seconds and 4 7-segment display for the Hours and Minutes. I've checked the net and I could not find a straight forward tutorials to achieve this.

Thanks in advance. Joey

This request for help appears to be extremely similar to one you posted a few days ago... http://forum.arduino.cc//index.php?topic=195532.0

Are you dissatisfied with CrossRoads' answer?

Hi Coding Badly,

CrossRoads is trying to redirect me to site that I need to buy something, what I want to is to create my own. Yes this is similar to that post, do you have idea or any help that you can share :)

Well you could have said so, eh? I’ll merge the threads.

What parts do you have? I presume you have 60 LEDs? Anything else? If not you will need to purchase some things.

Which Arduino do you have?

mjmdotorg: CrossRoads is trying to redirect me to site that I need to buy something, what I want to is to create my own.

He also recommended two chips that will help you accomplish what you are trying to do: TPIC6B595, MAX7219.

He also gave you a keyword to help you search: "shift register".

If you had followed the link he provided you would have found a schematic incorporating the TPIC6B595 and an ATmega328 processor; a schematic that is perfect for your project.

If you had followed the link he provided you would have found a complete parts list for that same schematic.

Given how cavalier you are about CrossRoads' post I can't help suspect that you are actually hunting for someone to hand you a ready-to-build solution on a silver platter.

Hi Nick,

What I have here currently is 74HC595 x6 and ATMega328P and also some resistors and the 4x 7 -Segment Display and also the 60 LED.

Hope that you could help me.

Thanks, Joey

Right, well the 595 has 8 outputs, and since you have 6 of them, you can control 48 LEDs. That's 12 short.

http://www.gammon.com.au/forum/?id=11518

And if you want to control 4 x 7-segment displays you will need more still.

I think Jaycar had something very very similar. 60 LEDs and a 4-digit display.

http://www.youtube.com/watch?v=gXb1ME0dZaI

Hi Nick,

That was I'm looking for like Jaycar Clock, do you happen to know if he put out the guide on how to do that? Please do help me on this as I would like to build this project as a Present to my Dad.

Thanks in Advance, Joey

I would use two MAX7219's for that, one to control the 60 LEDs, the other to drive the 4 time digits (HH:MM). Run the LEDs in no-decode mode so you can individually control the 8 bits in the 8 registers to turn on (add) one LED after another: 0b00000001, 0b00000011, 0b00000111, 0b00001111, etc. Run the other in regular decode mode to have it display the digits for you.

Hi CrossRoad,

Thanks for your reply, I would help me a lot if you can guide(schematic,breadboard, code) so that I could start with this project.

CrossRoads:
I would use two MAX7219’s for that, one to control the 60 LEDs, the other to drive the 4 time digits (HH:MM).
Run the LEDs in no-decode mode so you can individually control the 8 bits in the 8 registers to turn on (add) one LED after another:
0b00000001, 0b00000011, 0b00000111, 0b00001111, etc.
Run the other in regular decode mode to have it display the digits for you.

Good idea. That gets it down to two chips. He still has to buy something though. :slight_smile:

Here’s my guide to the MAX7219:

http://www.gammon.com.au/forum/?id=11516

I got 10 x MAX7219 from eBay for $4.50 so you can probably afford that. Try searching for “10PCS IC MAXIM DIP-24 MAX7219CNG”.

Schematic - Connect to Arduino.