LED Show Schematic

Projects General Guidance
1

Hi i am new here. I want to build LED show just for fun. Can anybody have schematic for particular project.
Kindly see the link for LED show.Any help would be appreciated. {- YouTube}

2

If you could find addressable led strip, than you don't need a schematic

3

Is this what you're after?
Common Anode RGB LEDs connected to shift registers.
Expand to the length you want.
To put data into it:

digitalWrite (SS, LOW);
SPI.transfer(byte0); // 9 shift registers for 72 bits of control, 24 LEDs
SPI.transfer(byte1);
SPI.transfer(byte2);
SPI.transfer(byte3);
SPI.transfer(byte4);
SPI.transfer(byte5);
SPI.transfer(byte6);
SPI.transfer(byte7);
SPI.transfer(byte8);
digitalWrite(SS, HIGH);

How you create the byte0-byte8 is the part that makes the display interesting.

RGB_jpg_shift_register.jpg
RGB_jpg_shift_register.jpg960×720 62.6 KB

4

Thanks for your kind support and useful information. Kindly upload the code in hex file. I am having Universal Programmer and i will write the IC with programmer.

Thankyou

5

You didn't ask for code, only a schematic. I don't have any code - that's up to you to write.

6

Dear

I am not able to make a schematic with given information. Kindly give more and complete information with needed components. Any help would be greatly appreciated.

Thanks

7

Here is a Common Anode RGB LED.
http://www.dipmicro.com/store/LED5AD

Use 300 ohm resistor with Red. (this can go as low as 155 ohm for max brightness)
Use 180 ohm resistor for Green. (this can go as low as 95 ohm for max brightness)
Use 180 ohm resistor for Blue. ((this can go as low as 100 ohm for max brightness)

The schematic is as posted above, expand it to the right, making the same kinds of connections, for the other 14 RGB LEDs.

I would try one LED with resistors to make sure the brightness levels are about the same. Increase the resistance to make a color dimmer if needed.
1/4W resistors will do fine.
180 Ohm 1/4W Resistor ±1% 180R 181 - dipmicro electronics for Green, Blue

270 Ohm 1/4W Resistor ±1% 270R 271 - dipmicro electronics or
330 Ohm 1/4W Resistor ±1% 330R 331 - dipmicro electronics for Red

The shift register is 74HC595
http://www.dipmicro.com/store/74HC595

Board to build it in
http://www.dipmicro.com/store/PCB-UNI18

Sockets for the shift registers
http://www.dipmicro.com/store/ICS316

0.1uF capacitor, put one from each shift register's pin 16 to ground.
http://www.dipmicro.com/store/C5K10-50

8

Thanks dear. All parts are successfully arranged but still one is missing which is generating SCK MOS & SS signal. Is it microcontroller , PIC , or any other programmable IC. Please tell me where i can get this if its programmable then please upload the programme.

Thanks
Kamal

9

Pick an Arduino. Uno. Pro Mini. Nano.Duemilanove. Pick one.
Then connect D13, D11, D10 (SCK, MOSI, SS) as noted, to the shift registers as noted.

I don't have code.

10

How much is the cost for that and where i can buy this. I am based in India.

11

You're the one in India. Get on your favourite search engine. Other forum members based in India have mentioned an Arduino clone maker based there.

12

Mr. Kamal ,Please note that Mr.CrossRoads have given you the best info. to get you started with this project you have to write the code yourself and if you want any one of us guys to do for you then know the Price follows :).

The MicroController or the programmable IC as you call is ATMEL ATmega328/168/8 and the ones you are mentioning are MicroChip PIC family members.

If you do not want to make this you can get the LED strip from ebay>> LED strip for sale | eBay

OR you can get any LED stripwith a WS2801 Chip that controls the respective particular LED's using the SPI, I'm doing a similar project where the same Strip im controlling using the Ethernet shield and a C# client app that i made.