I have two options from google research:
<ol>
<li>Chrome serial api as part of an extension followed by message passing to the web page. </li>
<li>Web USB protocol that directly talks to serial devices (requires client to enable advanced features in chrome)</li>
</ol>
To be clear, I want to talk to serial ports on the client&#39;s pc. The idea is that they can plug in an IOT device and then quickly use it with my webpage.
(P.S. I understand the security concerns with this. Would really appreciate non-self-righteous technical answers. )

I have two options from google research:

1. Chrome serial api as part of an extension followed by message passing to the web page. 
2. Web USB protocol that directly talks to serial devices (requires client to enable advanced features in chrome)

To be clear, I want to talk to serial ports on the client's pc. The idea is that they can plug in an IOT device and then quickly use it with my webpage.

(P.S. I understand the security concerns with this. Would really appreciate non-self-righteous technical answers. )


Could you clarify &quot;serial port&quot;
As in, the <a target='_blank' rel='noopener noreferrer' href="https://en.wikipedia.org/wiki/Serial_port">traditional serial port with 9 pins</a> or do you really mean USB or otherwise?
You&#39;d be hard pressed to find a serial port on any modern day laptop and &quot;most&quot; newer PCs

Could you clarify "serial port"

As in, the [traditional serial port with 9 pins](https://en.wikipedia.org/wiki/Serial_port) or do you really mean USB or otherwise?

You'd be hard pressed to find a serial port on any modern day laptop and "most" newer PCs


I meant serial COM port, implemented on USB hardware. Not the literal DB9 connector port.

I meant serial COM port, implemented on USB hardware. Not the literal DB9 connector port. 


What's an existing (not completely infuriating) way to communicate with IOT serial devices from a webpage?

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