node-hid-stream | Stream data from HID device in Node.js | Keyboard library

by agirorn JavaScript Version: 1.1.0 License: MIT

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | node-hid-stream Summary

node-hid-stream is a JavaScript library typically used in Utilities, Keyboard, Nodejs, JavaFX applications. node-hid-stream has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can install using 'npm i node-hid-stream' or download it from GitHub, npm.

Stream data from HID device in Node.js. Wraps node-hid in a node.js Stream. HID devices, specifically, keyboard-like devices. keyboard-like = (keyboards or barcode scanners).

Support

Quality

Security

License

Reuse

Support

node-hid-stream has a low active ecosystem.

It has 15 star(s) with 20 fork(s). There are 3 watchers for this library.

It had no major release in the last 12 months.

There are 1 open issues and 9 have been closed. On average issues are closed in 146 days. There are 10 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of node-hid-stream is 1.1.0

Quality

node-hid-stream has 0 bugs and 0 code smells.

Security

node-hid-stream has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

node-hid-stream code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

node-hid-stream is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

node-hid-stream releases are not available. You will need to build from source code and install.

Deployable package is available in npm.

Installation instructions, examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi has reviewed node-hid-stream and discovered the below as its top functions. This is intended to give you an instant insight into node-hid-stream implemented functionality, and help decide if they suit your requirements.

Parses a keycode string
Parse key format
Verifies the options
Parse modifiers .
Handle error handling
Parse a keyboard key .
Validate array keycodes
Creates a new hid device
HID class
emulate the default modifiers

Get all kandi verified functions for this library.

node-hid-stream Key Features

No Key Features are available at this moment for node-hid-stream.

node-hid-stream Examples and Code Snippets

No Code Snippets are available at this moment for node-hid-stream.

Community Discussions

Trending Discussions on node-hid-stream

node-hid: get Device by serial number

raspberry node-hid-stream: using multiple hid devices slowing down execution of application

Javascript to turn Barcode scanner output of multiline buffer to array or json

QUESTION

node-hid: get Device by serial number

Asked 2020-Apr-27 at 08:25

Is there any way to define a hid device by using its serial number? I have several code readers with the same vendor and product ID. Now I'm using a device path but it is also not the best way (the path is not static, it sometimes changes during system startup).

...

ANSWER

Answered 2020-Apr-27 at 08:25

There is no way to define hid devices directly by its Serial number, but it can be done other hand.

According to node-hid- documentation:

Picking a device from the device list

If you need to filter down the HID.devices() list, you can use standard Javascript array techniques:

Source https://stackoverflow.com/questions/61324988

QUESTION

raspberry node-hid-stream: using multiple hid devices slowing down execution of application

Asked 2020-Apr-17 at 18:12

i'm bulding an application on Raspberry PI 4 1GB RAM basing on webserver, reading data from hid devices and serialport using express, node-hid-stream and serialport libs. Everything works fine with 3 hid devices, but after adding the fourth device application is terribly slowing down(starting web server in 5-10minutes, serial port isn't even opening). Raspberry RAM consumption is around 700MB during running applications with 3 and 4 hid devices, only app is lagging, data from all hid devices is available.
According to node-hid documentation:

This is not a limitation of node-hid but a limitation of all user-space libraries. This is a security feature of the OS to prevent input device snooping.

Maybe this is a problem.

Some sample of code:

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ANSWER

Answered 2020-Apr-17 at 18:12

Increase the thread number by adding this line on top

process.env.UV_THREADPOOL_SIZE=10

This will set the environment variable UV_THREADPOOL_SIZE to 10

The default value is "4" and maximum is 1024

Source https://stackoverflow.com/questions/60643941

QUESTION

Javascript to turn Barcode scanner output of multiline buffer to array or json

Asked 2020-Mar-15 at 03:25

Good Morning!

I'm trying to get a USB Barcode scan into a single array or even better yet a JSON object, but I can't figure out how to turn this multi-character buffer into an object.

Below is the Raw HID stream coming from the Scan (Zebra LS2208)

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ANSWER

Answered 2020-Mar-15 at 03:25

In case someone else comes around and has a similar problem, I found the solution to my problem.

With the USB Scanner I was using, a Zebra LS2208, it comes with multiple scanning modes which can be set by scanning a bar code. Over the last day, I've been using it as USB Keyboard (HID) which means each digit in the UPC was a different Key Down/Key Up, which this morning dawned on me.

I scanned the bar code which switched it's scanning mode to IBM HAND-HELD USB and attempted the scan, but I received an error in the code. I didn't change any code and the path of the device was the same, but to double check the device settings, I used the following, which is part of node-hid to check my device settings:

Source https://stackoverflow.com/questions/60678685

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