Using MSP430 G2553 as main control chip

through the heart rate sensor and three-axis acceleration sensor ADXL362

data is collected SMO algorithm is used to realize the SVM model

so as to identify the user’s state of sleeping

use of Bluetooth communication

the identified user sleeping state is sent to night light

night light processor MSP430 G2553 receive data and combining with time data of clock chip DS1302

control color

brightness and auxiliary music playing of night light. Compared with the traditional night light

the color of the light can be changed according to the user’s sleeping state. The yellow-green light is used to make people relax at dusk

the red-orange light is used to help them sleeping at night

and the blue light is used to wake them up in the morning.The alarm mode combining natural light and music wake up mode is added. Practice shows that it can effectively improve the sleeping quality of users.