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Customers can adjust the light source using either Bluetooth or WiFi with the LED controller. They can change or adapt the color of the light as well as dim it, i.e. make it light or dark, depending on the LED light source.
The term “light color” refers to the ability to change the color of the light from a warm white produced by an incandescent lamp to a cold white or daylight white. All of these functions necessitate the use of an LED controller. The controllers need a different number of output channels to control the LED strip lights, depending on the requirements.
Support for a communication link between integrated circuits on a board is provided by the I2C controller. It is a straightforward two-wire bus with a serial data line (SDA) and a serial clock (SCL) for use in temperature sensors, voltage level translators, EEPROMs, A/D and D/A converters, CODECs, and a wide variety of microprocessors.
Five I2C controllers are provided by the hard processor system (HPS) to allow system software to communicate serially with I2C buses. Each I2C controller supports either master or slave mode, with speeds of up to 400 kbps in fast mode and 100 kbps in standard mode. Examples of the Synopsys* DesignWare* APB* I2C (DW_apb_i2c) controllers can be found in these I2C controllers.
It is necessary to program each I2C controller to only operate in master or slave mode.It is not possible to act simultaneously as a master and a slave.
The Global I2C LED Controller market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
The PCA9685 is a 16-channel LED controller controlled by an I2C bus that is made for Red, Green, Blue, and Amber (RGBA) color backlighting applications.
Each LED output has its own fixed-frequency PWM controller with a 12-bit resolution that operates at a programmable frequency from a typical and has an adjustable duty cycle to allow the LED to be set to a particular brightness value. The PWM frequency is the same for each output.
With no PWM control, each LED output can be turned off or on, or it can be set to its own PWM controller value.Either open-drain with current sink capability or totem pole sink, source capability are programmed for the LED output driver.The PCA9685 has tolerant inputs and outputs and operates with a range of supply voltages.
LEDs can be controlled with external drivers and a minimal number of discrete components for larger current or higher voltage LEDs, or they can be connected directly to the LED output. The new Fast-mode Plus (Fm+) family includes the PCA9685.Fm+ devices enable bus operation with a higher frequency and a greater density of users.
Despite the fact that the PCA9635 and PCA9685 share many features, the PCA9685 is better suited for applications like LCD or LED backlighting and Ambilight.
