How to get Serial Port data by chrome

the company now has a demand, the equipment is plugged into the usb port of the computer, the front desk gets the serial port information and transmits the data, can you tell me how to achieve it? does ActiveX not support chrome browsers? I found on the Internet that chrome serial api can be implemented, but enter these api in the browser debug serial port to prompt that these methods do not exist, how is it?

Mar.02,2021

Boss, have you solved the problem? I have the same need. Can you give me some advice?


have you solved the problem of the two bigwigs upstairs? I have the same problem.

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1bddf74-39779.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bddf74-39779.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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