1. Product Overview:
HD107S-2121 is an intelligent external control light source that integrates control drivers and LED light-emitting chips, with each LED light source being a pixel point. Internally integrated with MCU digital interface, data latch, LED driver and other circuits. The individual grayscale and cascade control of the chip are achieved through peripheral MCU control, realizing color dot matrix luminescence control.
The data transmission adopts clock and data dual line signal serial protocol, with long transmission distance and strong anti-interference ability. 

2. Main application areas:
LED full-color luminous character light string, LED full-color soft and hard light strip, LED point light source, LED pixel screen, LED irregular screen, LED full-color module, car atmosphere
Surrounding lights, as well as various electronic product atmosphere indicator lights. 

3. Main features of the product:
-The built-in light driver is integrated to form a complete external control pixel point.
-Integrated dual line serial cascaded constant current IC, clock and data dual line signal protocol.
-The default output constant current value for B/R/G light-emitting chips is 17mA.
-Supports a maximum clock signal input frequency of 32MHz and a maximum data signal transmission rate of 32Mbps.
The PWM scanning frequency is 27KHz.
-8-bit data per color, 256 levels of grayscale adjustable, good color consistency.
-Power on without self check mode, no signal input, no light on.
-SMD white bracket with a 120 ° light emission angle, high brightness and stability.
-Suitable for SMT and wave soldering processes.
-Compliant with RoHS and REACH environmental protection materials.
-Moisture proof grade: LEVEL4.

4.Technical Parameters
Item No.: HD107s 2121 RGB
LED Type: 2121 SMD
Voltage: DC5V
Color: RGB
Description: 256grey scale,(8bits) one clock cable, one data cable