What is the hottest topic in 2017? I believe that smart home equipment is a popular "fried chicken". The original electronic products around you, such as speakers, TVs, refrigerators, smoke, etc., have become smart homes that have been armed from the face to the brain overnight. What is intelligence, and where is it? It must have a strong processing power, perceive changes around it, but also have the ability to remember, and more importantly, it must be able to communicate with people, to bring their own "aura". Small auras often have great wisdom, simple switches, and uniform instructions that can no longer meet our growing demands for value and interaction. So what kind of aura can be called the high name? Let's take a look at the answers to these A+s. A good "halo" is like this: - It has beautiful colors and can change with my mood. - It has a soft brightness, don't know the black of the day during the day. - It has an elegant feeling of breathing gradient. - It has a dynamic change in running water. - It also needs green, power saving and power saving. - It also has the function of intelligent error detection. If there is any problem with the LED, the controller MCU should be notified at the first time. So, what do you need to have such a beautiful LED aura? To put it simply, to achieve the above-mentioned tall LED halo, a very smart LED driver can solve all the above problems. - Multi-channel with I2C or SPI communication interface. - Independently controlled PWM dimming of more than 8 bits per channel can help you achieve soft variations in brightness. - Current dimming can help achieve the perfect color mixing of RGB three colors. - The built-in engine control allows the LED halo to work perfectly while the MCU is in standby. Huashan Li Jian, TI's LP55231 is an industry leader with a reputation: 9-channel constant current output can simultaneously support 3 sets of RBG LEDs, each channel can independently achieve 8 bit analog current dimming or 12 bit PWM dimming Any color and brightness can be easily achieved through them. In addition, dimming is an artistic activity and individual activity. The built-in engine control of LP55231 can store the common halo operation mode. Even if the MCU is in standby state, the LP55231 chip can still drive the LED halo operation, that is, save power and save MCU. The amount of data interaction with LED drives is typically green and environmentally friendly. Not only LP55231, TI has the most complete LED driver chip solution in the industry. For more information, please visit http://www.TI.com/lsds/TI/power-management/led-driver-overview.page Dongguan Rongmao technology Co.,ltd , https://www.szroomoo.com