bluetooth rotating led

Installation diagram

The waterproof shell purchased on Taobao in the shell industry is 2.9. You need to drill holes by yourself. Students who can 3D print can print the shell by themselves.

Coils (with magnets) and fixed plates can be purchased on Taobao

It is recommended to buy emerald green lights, the effect is particularly beautiful

The three-dimensional surface displays the content you want. You can expand the display content through Bluetooth and save it to the eeprom of the microcontroller.

Three-dimensional display clock

Self-oscillation power supply is not used, and the power is not enough to power Bluetooth. The Bluetooth module can use jdy33, which is cheap and compact.

In the schematic diagram, H2 is connected to the header, the header is connected to the Bluetooth module, H7 is connected to the motor, H8 is connected to the coil, LED36 is connected to the infrared emission tube, and h6 is connected to an external switch to control the motor to rotate the LED. It is recommended that individuals adjust the PCB themselves and extend the board by 3 cm. Left and right, let the horizontal light be far away from the center of the circle. In order to be able to get the 5-yuan board of Lichuang, the flat light is too close to the center, making the display effect not particularly perfect. It is necessary to use hot melt glue to fix a certain weight (such as a copper pillar) on the other end of the lamp to prevent shaking. Please leave a message if you have any questions.