Note: because of aliexpress standard shipping method not allow shipping the battery, so the battery need prepared bu yourself. 1.All SMD components require some soldering experience. Poor soldering, wrong installation will lead to failure. 2.Scren the QR code on the package get the web tutorial. 3.(default red green blue mixed color ,monochrome: white,blue,red,green can be note in order page) The gyro uses a single chip microcomputer to control 12 light-emitting diodes to flash in turn, and the flashing time and flashing sequence of each light-emitting diode are controlled by the single chip microcomputer. When the electronic gyroscope rotates, the corresponding pattern and text will appear.  In order to improve the stability of the pattern and text, the circuit uses a Hall IC to control the regular display of the pattern, that is, every time it rotates, the Hall IC senses the magnet, and then the model is fed back to the microcontroller.  The coin-cell battery is used for power supply, and the microcontroller automatically enters low power consumption when the battery gyro is turned off. When the switch is pressed, the LED is turned on.