elkbledom HA Integration

Home Assistant integration for LED STRIP or LED Desktop light (lightbar) NAME ELK BLEDOM with android/iphone mobile app duoCo Strip (https://play.google.com/store/apps/details?id=shy.smartled&hl=es&gl=US) or mobile app Lantern Lotus (https://play.google.com/store/apps/details?id=wl.smartled&hl=es&gl=US).

I buy it in amazon spain (https://www.amazon.es/gp/product/B00VFME0Q2)

Or lightbar like this (https://www.amazon.es/bedee-Regulable-Inteligente-Bluetooth-Dormitorio/dp/B0BNPMGR1H)

New support for MELK strip, you can buy it in amazon spain (https://www.amazon.es/distancia-Bluetooth-aplicaci%C3%B3n-sincronizaci%C3%B3n-habitaci%C3%B3n/dp/B09VC77GCZ) or search "B09VC77GCZ" in your amazon country shop. MELK device confirmed working: https://www.amazon.com/dp/B07R7NTX6D

Dependencies

gattool is used to query the BLE device. It is available in bluez-deprecated for Fedora:

sudo dnf install bluez-deprecated

or as bluez-deprecated-tools in Arch:

paru -S bluez-deprecated-tools

BTScan.py relies on bluepy, and the integration relies on bleak-retry-connector and bleak pip packages.

pip install -r requirements.txt

Supported strips

You can scan BT device with BTScan.py in my repository exec: sudo python3 BTScan.py, code supports led strips whose name begins with "ELK-BLE" or "MELK" or "ELK-BULB".

Code supports controlling lights in HA with write uuid: 0000fff3-0000-1000-8000-00805f9b34fb or 0000ffe1-0000-1000-8000-00805f9b34fb

You can know your uuid with gatttool:

gatttool -I

[be:59:7a:00:08:xx][LE]> connect be:59:7a:00:08:xx

Attempting to connect to be:59:7a:00:08:xx

Connection successful

[be:59:7a:00:08:xx][LE]> primary
attr handle: 0x0001, end grp handle: 0x0003 uuid: 00001800-0000-1000-8000-00805f9b34fb
attr handle: 0x0004, end grp handle: 0x0009 uuid: 0000fff0-0000-1000-8000-00805f9b34fb

[be:59:7a:00:08:xx][LE]> Characteristics
handle: 0x0002, char properties: 0x12, char value handle: 0x0003, uuid: 00002a00-0000-1000-8000-00805f9b34fb
handle: 0x0005, char properties: 0x10, char value handle: 0x0006, uuid: 0000fff4-0000-1000-8000-00805f9b34fb
handle: 0x0008, char properties: 0x06, char value handle: 0x0009, uuid: 0000fff3-0000-1000-8000-00805f9b34fb

If your strip show some uuid like "0000fff3-0000-1000-8000-00805f9b34fb" , your strip it is supported

If your strip show some uuid like "0000ffe1-0000-1000-8000-00805f9b34fb" , your strip it is supported

If your strip show some uuid like "0000ff01-0000-1000-8000-00805f9b34fb", go to your correct repository: https://github.com/raulgbcr/lednetwf_ble

If your strip show some uuid like:

"0000xxxx-0000-1000-8000-00805f9b34fb"
xxxx can be one of these values ("ff01", "ffd5", "ffd9", "ffe5", "ffe9", "ff02", "ffd0", "ffd4", "ffe0", "ffe4")

Go to your correct repository: https://www.home-assistant.io/integrations/led_ble/

If your uuid is none of the above, create issue with: 1- strip name 2- your results uuid 3- handle information

You can use gatttool to try discover your turn on/off command with:

sudo gatttool -i hci0 -b be:59:7a:00:08:xx --char-write-req -a 0x0009 -n 7e00040100000000ef # POWERON
sudo gatttool -i hci0 -b be:59:7a:00:08:xx --char-write-req -a 0x0009 -n 7e0004000000ff00ef # POWEROFF

or

sudo gatttool -b be:59:7a:00:08:xx --char-write-req -a 0x0009 -n 7e0004f00001ff00ef # POWER ON
sudo gatttool -b be:59:7a:00:08:xx --char-write-req -a 0x0009 -n 7e000503ff000000ef # RED
sudo gatttool -b be:59:7a:00:08:xx --char-write-req -a 0x0009 -n 7e0005030000ff00ef # BLUE
sudo gatttool -b be:59:7a:00:08:xx --char-write-req -a 0x0009 -n 7e00050300ff0000ef # GREEN
sudo gatttool -b be:59:7a:00:08:xx --char-write-req -a 0x0009 -n 7e0004000000ff00ef # POWER OFF

Installation

HACS (recommended)

Installation can be done through HACS , search "elkbledom" and download it

Manual installation

You can manually clone this repository inside config/custom_components/ HA folder.

Setup

After installation, you should find elkbledom under the Settings -> Integrations -> Add integration -> search elkbledom integration -> follow instructions.

The setup step includes discovery which will list out all ELK BLEDOM lights discovered. The setup will validate connection by toggling the selected light. Make sure your light is in-sight to validate this.

The setup needs to be repeated for each light.

Config

After Setup, you can config two elkbledom params under Settings -> Integrations -> search elkbledom integration -> Config.

Reset color when led turn on

When led strip turn on, led reset to color white or not. This is needed if you want because i don´t know led strip state and is needed a reset.

Disconnect delay or timeout

You can configure time led strip disconnected from HA (0 equal never disconnect).

Features

Discovery

Automatically discover ELK BLEDOM based lights without manually hunting for Bluetooth MAC address

On/Off/RGB/Brightness support

Emulated RGB brightness

Supports adjusting brightness of RGB lights

Multiple light support

Not supported

Live state polling

External control (i.e. IR remote) state changes do NOT reflect in Home Assistant and are NOT updated.

[Light modes] (blinking, fading, etc) are not yet supported.

Enable debug mode

Use debug log to see more information of posible errors and post it in your issue description

In configuration.yaml:

logger:
  default: info
  logs:
    custom_components.elkbledom: debug

Examples

Create button to turn on:

show_name: true
show_icon: true
name: turn on
type: button
tap_action:
  action: toggle
entity: light.tiraled

Create button to set color:

show_name: true
show_icon: true
name: Red
type: button
tap_action:
  action: call-service
  service: light.turn_on
  target:
    entity_id: light.test
  data:
    rgb_color:
      - 255
      - 0
      - 0
    brightness: 255

Known issues

1. Only one device can be connected over bluetooth to the led strip. If you are using the mobile app to connect to strip, or used gatttool to query the device, you need to disconnect from the LED strip first.

   BleakOutOfConnectionSlotsError: Failed to connect after 9 attempt(s): No backend with an available connection slot that can reach address
   

2. Live state polling doesn't work.

3. I am waiting for read status value:

       ```
   
       future = asyncio.get_event_loop().create_future()
       await self._device.start_notify(self._read_uuid, create_status_callback(future))
       # PROBLEMS WITH STATUS VALUE, I HAVE NOT VALUE TO WRITE AND GET STATUS
       await self._write(bytearray([0xEF, 0x01, 0x77]))
       await asyncio.wait_for(future, 5.0)
       await self._device.stop_notify(self._read_uuid)
   
       ```
   

Credits

This integration will not be possible without the awesome work of this github repositories:

https://www.home-assistant.io/integrations/led_ble/

https://github.com/sysofwan/ha-triones

https://github.com/TheSylex/ELK-BLEDOM-bluetooth-led-strip-controller/

https://github.com/FreekBes/bledom_controller/

https://github.com/FergusInLondon/ELK-BLEDOM/

https://github.com/arduino12/ble_rgb_led_strip_controller

https://github.com/lilgallon/DynamicLedStrips

https://github.com/kquinsland/JACKYLED-BLE-RGB-LED-Strip-controller

https://linuxthings.co.uk/blog/control-an-elk-bledom-bluetooth-led-strip