One minute standby problem. Please advise

tianqi911

One minute standby problem. Please advise [Copy link]

A panel of a Bluetooth speaker. There are 4 buttons. If you don't press them, the LED light will dim for one minute. When the buttons are pressed, the LED light will brighten. (The LED light is on all the time) (The 51-core microcontroller cannot enter sleep mode). Under the guidance of senior people, how should I do it?

strong161

Why does gi9p need to use a 51 single-chip microcomputer for just a few keys? Can't it be done directly with a Bluetooth chip?

star_66666

I am speechless. . . .