About electronic combination lock circuit diagram

Photocoupler

About electronic combination lock circuit diagram

The unlocker must quickly press the five switches S 1 to S 5 in sequence. They are any number of 10 button keyboards. If the error is pressed, the alarm sounds and the unlocking continues for two minutes.



5.1 Home Theater Speaker

5.1 Home Theater Speaker,Home Theatre 5.1,Wireless Surround Sound Speakers,Bluetooth Surround Sound System

GUANGZHOU SOWANGNY ELECTRONIC CO.,LTD , https://www.jerry-power.com

This entry was posted in on