hci | Hyper Converged Infrastructure : Scripts and Templates

I would like to create a graph. To do this, I have created a JSON file. The Skills (java, python, HTML, json) should be the links and the index (KayO, BenBeck) should be the nodes. Also the node must not fall below a certain minimum size and must not become too large.

After that, I would like to be able to call up the list of publications on the right-hand side by clicking on the node. The currently selected node in the visualisation should be highlighted.

I have already implemented from this example (https://bl.ocks.org/heybignick/3faf257bbbbc7743bb72310d03b86ee8). But unfortunately I can't get any further.

The error message I always get is:

Uncaught TypeError: Cannot read property 'json' of undefined

This is what my issue currently looks like:

The JSON file:

I have to remove dot (.) from data, using translate, I am using XSLT 1.0 and can also use 2.0, I tried using translate and replace in xslt but it only work in other cased like removing space or some char or number, but when I use dot, there is no change.

XML:

In our system, we have a BLE Peripheral (in this example, running on RPi4) using BlueZ 5.50.

We have an iOS app that connects to this Peripheral as a Central.

This connection can be seen in btmon, all looks ok:

Currently, the page is showing the titles of an array stored in a JSON string. I want to display the rest of the details in that array after pressing on the title. Either in another list group under the title or on a new page.

This is the code I have written so far:

I'm setting up Linux device to act as BLE host, and ESP32 to work as a BLE controller over UART.

I'm using BlueZ v5.55, with btattach and bluetoothctl utilities, and bluetoothd running in the background. However, after finishing the setup bluetoothctl still says No default controller available.

I have written a bluez application on Raspbian Buster, Raspberry Pi 4. In some reboots, the bluetooth module and service are not loaded.

On checking the bluetooth.service with command: $ sudo systemctl status bluetooth.service, I see, Condition check resulted in Bluetooth service being skipped.

I checked $ lsmod and $ dmesg logs for both issue and non-issue conditions.

The difference I find in the lsmod is shown below:

The difference I find in the dmesg log is shown below:

The left side is the issue case and the right side is non issue case.

How can I fix the issue so that the bluetooth works consistently? I am using Raspbian Lite OS 2020-02-14.

Update 1 [03 Feb 2021]: I checked the journalctl log for the issue case and found this:

I am using Selenium for HCI tests, but Selenium couldn't find an element that was visible, intrigued, I searched it and came to the conclusion that, the element is visible but not present in the DOM.

I may be mistaken (likely), but it's what it seems to be for me.

I have a website with an element, Parcourir :

When I click on it, I can see this div element:

Here is the problem now, There is an element Bibliothèque at the top of the window, when I open the Browser Developer Tools, and inspect it, I find its id and XPath, the element HTML code is below:

My setup is as follows:

1. BLE Peripheral in Raspberry Pi 3
2. nRF tool in Android Phone
3. My App in the same Android Phone (uses react-native-ble-manager)

When I connect to the Raspberry Pi using nRF tool, it connects successfully. But, when I connect using my own Android App it fails.

In the Raspberry Pi, I ran sudo btmon command to examine the failure log which is shown below:

I'm trying to connect two Arduino device to the raspberry pi using the csr 4.0 dongle. I've tried python3 and bluepy, but always one of them failed to connect! I've also tried to connect to them using bluetoothctl at the same time, but I got this: