bleno | js module for implementing BLE | Networking library
kandi X-RAY | bleno Summary
kandi X-RAY | bleno Summary
A Node.js module for implementing BLE (Bluetooth Low Energy) peripherals. Need a BLE central module? See noble. Note: macOS / Mac OS X, Linux, FreeBSD and Windows are currently the only supported OSes.
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Top functions reviewed by kandi - BETA
- Characteristic constructor .
- The Blob class .
- Calculate a c1
- InfiniteColoristic characteristic .
- Constructs a new BlinkColoristic .
- Provides aureCharacteristic for the pie .
- Creates a new PlaceCharacteristicCharacteristicCharacteristic .
- Provides a pretty - valueisticCharacteristic .
- A hardware revision characteristic .
- Encapsulates a serial number characteristic .
bleno Key Features
bleno Examples and Code Snippets
Community Discussions
Trending Discussions on bleno
QUESTION
I'm trying to implement Bluetooth FTMS(Fitness Machine).
...ANSWER
Answered 2021-Jul-05 at 23:03How Can I convert:
From - [HEX] 00 00 40 02
To - [DEC] 16386
To - [BIN] 0100 0000 0000 0010
You can simply use ContiguousBytes
withUnsafeBytes method to load your bytes as UInt32
. Note that it will use only the same amount of bytes needed to create the resulting type (4 bytes)
QUESTION
I'm a bit new to the BLE environment, my code works just fine, buy I can't manage to get some sort of response,
I'll show you the code, and I'll tell you more about my objective
...ANSWER
Answered 2021-Jan-07 at 08:50For Write Requests, the BLE standard only defines that an error code can be returned. Nothing else. The error code must also be one of the allowed ones. You could send a Notification with some error text if you want, or place the last error message in a characteristic that can be read.
QUESTION
I am trying to use a Pi to emulate a Bluetooth device using the BlueZ C api. I am able to separately 1) configure the SDP server to advertise the correct service and 2) listen for and establish an L2CAP connection. However, I'm unable to do both at the same time.
The issue is that sdp_record_register() will segfault unless bluetoothd
is both running and in compatibility mode. However, accept() won't return for the Bluetooth socket if bluetoothd
is running, because bluetoothd
will steal the request.
So I can either:
- Register/advertise my service with SDP, but not be able to accepting incoming connections, by running
bluetoothd
(in compatibility mode). - Be able to accept incoming connections, but not able to register/advertise my service, by not running
bluetoothd
.
ANSWER
Answered 2020-Apr-19 at 02:28The (unsatisfying but correct) answer is to not use the hci*
API. That API is apparently deprecated, so bugs like that segfault are not going to be fixed. The correct way to do this is to use the DBus API. That API is almost as cumbersome as the hci
API, but at least it's documented.
After swapping out the massive amount of hci
-based code I'de written with the gdbus API offered by glib-2.0 to set up the SDP service, I was finally able to advertise the service and connect at the same time. My socket code worked without modification.
QUESTION
I'm developping a node.js electron app and I need to decide if our Hardware will feature BLE or standard Bluetooth. I found a couple of APIs (bleno & noble) for this purpose. However for Windows OS both of these require me to use an additional bluetooth usb adapter (used WinUSB & Zadig).
To put it bluntly, is there any way to communicate with a BLE device on a Windows OS using node.js without using an external dongle?
It seems like standard bluetooth is just way less of a hassle. Thanks!
...ANSWER
Answered 2020-Apr-14 at 19:28The official Bluetooth API on Windows is built for Windows Runtime, https://docs.microsoft.com/en-us/microsoft-edge/windows-runtime. It supports Javascript but I'm not sure if you need a specific js environment. If you don't get that working, you should write or use a native binding for node.js.
QUESTION
Is there any way for a Peripheral to get a Central device's name when establishing a bluetooth connection (BLE)? I'm unsure if Bleno has the tools necessary to get this.
...ANSWER
Answered 2020-Jan-17 at 17:02Just read the Device Name in the remote GATT server. The peripheral must support GATT client in order to be able to read the device name.
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