Handheld Electric Fan High Performance Single Chip Microcomputer PCBA

The working principle of the hand-held fan is that the energized coil is forced to rotate in the magnetic field, and the electric energy is converted into mechanical energy. There is an internal twin-rotor turbofan engine, and its working principle is basically the same as that of "twin-rotor turbojet engine".

Brief introduction for product

Specific operation method：

Hand-held fan has three gear modes, L\M\H represents three running gears, and the current running mode is indicated by LED; Two buttons, the red button is the shutdown button and the green button is the mode button; An illuminating LED lamp.

1. when clicking the right button, the gear will be switched, i.e. the first gear, the second gear and the third gear will be turned off (sleeping), and the LED will indicate the current gear in real time;

2. Click the left button to shut down in any working mode, and the LED goes out and enters the sleep mode; In the shutdown state, when the left button is clicked, the LED will display the battery power in real time, then it will go out after 5 seconds and enter the sleep mode. The sleep current is 1.2ua；;

3. Press and hold the right button in any state, and the right LED will light up. Also, press and hold the right button LED to turn off in any state;

4. The charging indicator will be indicated by different color lights when charging and after charging;

Functional design：

High performance RISC CPU

8-bit MCU

Built-in 1K×14-bit program memory

64 byte data memory

There are only 42 single-word instructions.

8-level storage stack

8-level PUSH and POP stack

Support ISP

Low power consumption characteristic