A netizen asked me if there is a chip that can turn the machine on and off by long pressing.

nmg

A netizen asked me if there is a chip that can turn the machine on and off by long pressing. [Copy link]

 

My reaction at that time was to come to the forum to ask wow~

Then it feels like a timer function

Why not take the phone apart and take a look?

Does anyone in the forum know?

annysky2012

This depends on where it is used. For example, a mobile phone has a battery for energy storage. After long pressing the switch, the system collects the signal and makes a judgment to see what the signal is. If there is no external control circuit, it is just a simple device assembly, and a timer can be used.

littleshrimp

sensortile.box uses this chip, you can learn more about it

se7ens

A controller with an MCU can achieve

w494143467

There is a chip that turns off the power by long pressing, and turns on the power by short pressing.

w494143467

w494143467 posted on 2021-10-2 10:27 There is a chip that turns off by long pressing and turns on by short pressing.

STM.

daemondong

The software can do it, judging the key press duration, long press to enter sleep mode, short press to exit.

雨后的梧桐

Can't we just find an MCU and solidify the program to meet the same needs?

ecm

Long press for 3 seconds to turn on and long press for 3 seconds to turn off. Chip 9325-4531; SOP-8 package.

Working voltage 2.2-5.5V . Press the button to touch the switch K1 , control one IO output, it does not work when powered on, press and hold the button for 3 seconds to turn on, IO output high level is valid. Press and hold the button for 3 seconds to turn off during operation , IO output is low level

ecm

w494143467 posted on 2021-10-2 10:27 There is a chip that turns off by long pressing and turns on by short pressing.

EC200823-2728-9164 sop-8 package, short press to turn on and long press for 2 seconds to turn off chip