webbluetooth | Node.js implementation of the Web Bluetooth Specification | Runtime Evironment library

I'm writing a progressive web app for an android tablet which should be able to read and write to a device with an embedded Telit BLE module via a BLE connection.

I am able to open a BLE connection and discover services and characteristics. I am unable to establish a connection over BLE using Telit's Terminal I/O (TIO) protocol.

My remote (server) device is a Falcom Fox3 tracker unit. A notification event can be read from the Fox3 serial port when a connection is established. This has been successfully tested by connecting to the Fox3 using Telit's android terminal app: https://play.google.com/store/apps/details?id=com.telit.tiosample

I have put together a short function which should connect via BLE, establish a TIO connection and request UART credits before listening for incoming data from the server.

I have based my code on a simple script from Smashing Magazine : https://www.smashingmagazine.com/2019/02/introduction-to-webbluetooth/

The process of initiating the TIO connection follows is that given in Telit's Terminal I/O Profile Client Implementation Guide .

the Terminal I/O connection setup consists of the following steps:

• The Terminal I/O client scans for Bluetooth Low Energy devices advertising the Terminal I/O service.
• The Terminal I/O client establishes a Bluetooth Low Energy GATT connection to a detected Terminal I/O server.
• The Terminal I/O client performs a service discovery on the Terminal I/O server.
• For the retrieved Terminal I/O service, the Terminal I/O client performs a characteristics discovery.
• The Terminal I/O client subscribes to indications of the UART credits TX characteristic (see 7.4).
• The Terminal I/O client subscribes to notifications of the UART data TX characteristic (see 7.2).
• The Terminal I/O client transmits initial UART credits to the server (see 7.5).
• Once the Terminal I/O client has received the response for the transmitted UART credits, the Terminal I/O connection is considered established and indications for the UART credits TX characteristic and notifications for the UART data characteristic shall be expected at any time.

The order of the connection setup sequence is mandatory.

My code is as follows, where log is a function which outputs to the screen.

What do you want exactly?
I have a website in Hugo. However I have a peculiar situation.
Scientists and Electrical Engineers and others may have specific needs. For Eg: Having a single page that shows a simulation. Or in my case using webbluetooth and webusb that I have written from scratch in HTML, CSS and JS. Moreover these pages may be generated by custom scripts. So you can have git submodules inside your hugo site that specifically cater to generating these custom, single page html that you just want to add to your website.

So all I want is to have a menu item or sidebar whatever the existing theme supports, but instead of showing the default html, it should show my custom, hard-coded, already ready and prepared html file - which may as well be an index.html file in a folder with all the necessary contents ready and cooked - something like the _site folder that jekyll creates.

What do you mean by custom html?
I mean it doesn't take the formatting of the hugo theme. It has its own formatting, but because its just a single page in the whole website its not fruitful to have its own layout written in Hugo or maybe its just worth the effort to do that cause you already have it working using some other technology.

What have you done so far and what works?
I am actually coming from a Jekyll background where it's as simple as changing the layout frontmatter and making it nil or even something that doesn't exist at all and jekyll does a great job of showing custom HTML in an existing theme. Tried the same with Hugo but that didn't work.

What are you testing on?
hugo-coder and(or) hugo-academic

Any specific requests?
Ideally I would like to have submodules in my hugo site folder where those submodules generate custom html in known folders and then somehow make a corresponding markdown file in Hugo that is responsible for showing the custom html.
I want to avoid writing the whole html in the markdown itself. But if no other solution is possible then I guess I don't have a choice.

Do let me know if its possible and worthwhile to pursue this and any references that might help.

I'm using WebBluetooth API in Chrome 80 with experimental flag enabled. I can retrieved all nearby devices' info with navigator.bluetooth.requestLEScan. However, when it comes to the current device that I'm making scan from, there doesn't seem to be a way to retrieve information about it. Is there anyway that I can retrieve information of the current bluetooth device?

I couldn't find anything from here, here, nor here

I need to communicate with an already connected (paired) device attached to my computer via JavaScript.

This is a Bluetooth device however it does NOT use 'low power technology' thus is currently inaccessible via WebBluetooth.

Is there any way to communicate with my device using a different method due to the fact that it is already paired with the computer? Maybe as some sort of serial connection?

Targeting support for Google Chrome.

Node.js or anything outside the realm of HTML5/JavaScript/Chrome Specific JavaScript will not be accepted as an answer. WebBluetooth already shows an example however my device does not use Low-Power-Bluetooth..

My WebBluetooth app works in Chrome Version 77.0.3865.90 on another system, so this is not a Chrome problem, this is a Windows setting problem. As soon as my web app tries to pair I am getting the message, "Turn on Bluetooth to allow pairing".

Bluetooth is turned on in Windows 10 and I can manually pair my workstation to my Android phone. I have fiddled with every Windows Bluetooth setting for hours now (disabling devices, etc.).

This is the message:

Any help would be greatly appreciated. Thx!

I'm trying to use the new navigator.bluetooth Web Bluetooth APIs to connect to an older Bluetooth device, however using the requestDevice({acceptAllDevices: true}) method seems to not working.

According to the docs, it should show all of the bluetooth devices without any filters, but the Chrome beta on Android is not picking up any devices whatsoever, as seen in the picture.

I'm using the Web Bluetooth Terminal with the modified mentioned method above, and getting zero luck in listing any devices.

My device is not BLE, and I'm trying to use the SerialPort "SPP" profile similar to this question, which I believe has the UUID of 0x1101 or 00001101-0000-1000-8000-00805f9b34fb.

How do I list the nearby or paired Bluetooth devices on Chrome mobile for Android?

(Additional Info: Chrome 56 on Android 6.0, the Bluetooth device is a HC-05 module - tested and confirmed working correctly with a dozen of Android Bluetooth terminal apps.)