2015年1月5日星期一

WS2811 WS2812B Led Strip and APA104 APA102 Led Strip Full Color Built-in IC

full color built in IC ws2811 ws2812b led strip and apa104 apa102 led strip   

    You might know abput ws2812b led strip and ws2811 dream color led strip for it popular in 2013 as the first come out built-in ic digital rgb led strip, and each meter can arrange as large as 144 leds,each led is individually control.Though it can`t come up with non built in ic led strip,but they are much cheaper than ws2801 led strip and lpd8806 led strips,also let alone dmx512 led strip.so it is popular among customers.

WS2812B addressable led strip

Mechanical Dimensions


PIN configuration 


PIN function

NO.
Symbol
Function description 
1
VDD
Power supply LED
2
DOUT
Control data signal output
3
VSS
Ground
4
DIN
Control data signal input

LED characteristic parameter

Emitting color
Model
Wavelength(nm)
Luminous intensity(mcd)
Voltage(V)
Red
13CBAUP
620-625
390-420
2.0-2.2
Green
13CGAUP
522-525
660-720
3.0-3.4
Blue
10R1MUX
465-467
180-200
3.0-3.4


APA102 addressable led strip

     Maybe you will consider that there are ws2811 and ws2812b why we still need apa104 and apa102 led strip,i am not familiar about them,do they really as good as you say? you might habitually refuse to know about them,convinced that hype advertising,frankly speaking if you think it like that you might kill great products and miss this significant business chance.it is better to see for oneself rather than to hear for many times.
General Characteristics :built in ic,individual control,DC5V input voltage,20mA current, gray scale is 256,but what you need to know is the difference,that is the Point:one data cable,one independent clock cable for built in ic,refresh speed is faster,the signal is much more stable and travel much faster than other built in ic leds.


PRODUCT  SPECIFICATIONS









PIN Description


NO.
PIN NAME
 I/O
FUNCTION
1
   VDD
P
Power is terminal 
  2
   VREG
O
4.5V regulator output
  3
   CKO
O
Series with the output clock signal 
  4
   SDO
O
Series with the output data
  5
   VEN
I
Self-test function selection
  6
   CSEL
I
Invert the clock signal cascade
  7
   POLAR
I
Positive and negative output options
  8
   OSCI
I
Oscillator input
  9
   SDI
I
Series with the input data
 10
   CKI
I
Series with the input clock signal 
 11
  REXT
I
Constant current source to adjust side 
 12
   VSS
P
Power supply negative terminal 
 13
    G
O
Green LED output
 14
    R
O
Red LED output
 15
    B
O
Blue LED output 


The data format:

programming
   Also,apa104 has the same parameter and function as ws2812b, but with much cheaper price,it time for apa104, apa102 led strip.It cannot be denied that,ws2811 ws2812b and ws2801 led strip still have a large market share for a while.

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