HLK-LD2450 Initial experiments to connect to HomeAssistant

viethap · June 12, 2024, 7:03am

@TomW1605 @athua Thank you. It’s save my time

Minniemie · June 14, 2024, 6:39am

Thanks for the feedback athua.

I’m still quite new to this. I tried to flash screek’s firmware (Beta Firmware For 2A) using ESP Web Tools but it did not work. Am I barking up the wrong tree? Appreciate if you can point me in the right direction. Thanks!

athua · June 14, 2024, 7:31am

If you are using generic hardware and not a SCREEK 2A unit, then you best option is to do the first time prep of your ESP32 board for ESPHome to wipe the existing firmware.
Then install the ESPHome Addon for HA if you don’t already have ESPHome installed anywhere and that will allow you to edit and compile the YAML then upload it to your ESP32 board.
Once you can get to the YAML, you can edit it and add the LD2450 components to it.
Remember the SCREEK code includes a BH1750 light sensor which you may not have.
Also ensure the correct GPIO is configured for TX and RX based on the pins you have used on your ESP32 board.

Minniemie · June 15, 2024, 2:53pm

Thanks athua I finally Got it to work thanks to your advice! Much appreciated.

athua · June 16, 2024, 11:00am

It might take a little effort to get ESPHome all setup but once done, you are on your way to customising and building your own sensors.

I started with getting some ESP32 boards for bluetooth proxies, then went on to adding a HLK-LD2410 mm radar to one and then the LD2450 to others.

Rihan · June 21, 2024, 9:13am

Hi all,
the thread is pretty long, so i’m not sure if this problem is already been mentioned.
I have a very strange consumption/temperature spike and I’m not sure if due to this sensor or the esp32 board.

Can I ask if someone of you can add the internal temperature sensor so we can compare the results? I have something like this:

You can clearly see the temperature spikes.

I’m trying to build an all-in-one device, but these spikes are a pain because the temperature sensor cannot be compensated for this. A mediane correction is not enough because the spikes are too wide.

Thanks!

EDIT: I forgot to post how to add the internal temperature sensor:

sensor:
  - platform: internal_temperature
    name: "Internal Temperature"
    entity_category: "diagnostic"

EDIT: forget this post. The problem is the ESP32 board, not the LD2450 so I’m off topic.

yousaf465 · June 23, 2024, 8:43pm

link to screek’s YAML?

athua · June 23, 2024, 10:10pm

I had posted links to the various YAML that is available previously in this thread which includes SCREEK:

haaahaha · July 1, 2024, 1:18pm

I keep getting detection from behind the sensor. Is there a way to make to scan the front only and cut out all the false detected from behind?

Mrsash · July 11, 2024, 5:44am

I have just ordered a few of the sensor itself and using it with a ESP32.

What is the orientation that the sensor considers up, down etc?
Basically trying to eliminate fans, exhaust fans etc and need to know the vertical angle it detects…
If anyone knows how to stop mmwave say above the horizontal angle of sensor please share.

thanks

ferbulous · July 12, 2024, 3:00am

https://www.tinytronics.nl/index.php?route=product/product/get_file&file=6000/HLK-LD2450-Instruction-Manual.pdf

The four antenna should be up

Mrsash · July 12, 2024, 8:48am

Thanks for this. Now I just have to check of I can stop the sensors detecting the ceiling fans.

Ok I set it up the right way up. May I ask why it detects me on the opposite side when I move in one direction? So if I move left it show right and vice versa.

Haldi · July 14, 2024, 8:02pm

Yeah… I’m pretty sure that picture/video is outdated.
Tried to use the same pins on my c3 and it failed.

How comes there is still no official ESPHome integration for the LD2450?

athua · July 15, 2024, 1:30pm

There is an attempt to create an official integration for the LD2450 in ESPHome but it seems to be taking a very long time.

github.com/esphome/esphome

Add LD2450 component

esphome:dev ← hareeshmu:ld2450

opened 10:29AM - 04 Nov 23 UTC

hareeshmu

+2115 -4

# What does this implement/fix? Support of LD2450 human motion tracking radar s…ensor ## Types of changes - [ ] Bugfix (non-breaking change which fixes an issue) - [x] New feature (non-breaking change which adds functionality) - [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected) - [ ] Other **Related issue or feature (if applicable):** fixes <link to issue> **Pull request in [esphome-docs](https://github.com/esphome/esphome-docs) with documentation (if applicable):** esphome/esphome-docs#3327 ## Test Environment - [x] ESP32 - [ ] ESP32 IDF - [ ] ESP8266 - [ ] RP2040 - [ ] BK72xx - [ ] RTL87xx ## Example entry for `config.yaml`:  ```yaml uart: id: uart_ld2450 tx_pin: 17 rx_pin: 21 baud_rate: 256000 parity: NONE stop_bits: 1 ld2450: id: ld2450_radar uart_id: uart_ld2450 throttle: 1000ms binary_sensor: - platform: ld2450 ld2450_id: ld2450_radar has_target: name: Presence has_moving_target: name: Moving Target has_still_target: name: Still Target number: - platform: ld2450 ld2450_id: ld2450_radar presence_timeout: name: "Timeout" zone_1: x1: name: Zone-1 X1 y1: name: Zone-1 Y1 x2: name: Zone-1 X2 y2: name: Zone-1 Y2 zone_2: x1: name: Zone-2 X1 y1: name: Zone-2 Y1 x2: name: Zone-2 X2 y2: name: Zone-2 Y2 zone_3: x1: name: Zone-3 X1 y1: name: Zone-3 Y1 x2: name: Zone-3 X2 y2: name: Zone-3 Y2 switch: - platform: ld2450 ld2450_id: ld2450_radar bluetooth: name: "Bluetooth" multi_target: name: "Multi Target Tracking" select: - platform: ld2450 ld2450_id: ld2450_radar baud_rate: name: "Baud rate" zone_type: name: "Zone Type" button: - platform: ld2450 ld2450_id: ld2450_radar factory_reset: name: "LD2450 Factory Reset" entity_category: "config" restart: name: "LD2450 Restart" entity_category: "config" text_sensor: - platform: ld2450 ld2450_id: ld2450_radar version: name: "LD2450 Firmware" mac_address: name: "LD2450 BT MAC" target_1: direction: name: "Target-1 Direction" target_2: direction: name: "Target-2 Direction" target_3: direction: name: "Target-3 Direction" sensor: - platform: ld2450 ld2450_id: ld2450_radar target_count: name: Presence Target Count still_target_count: name: Still Target Count moving_target_count: name: Moving Target Count target_1: x: name: Target-1 X y: name: Target-1 Y speed: name: Target-1 Speed angle: name: Target-1 Angle distance: name: Target-1 Distance resolution: name: Target-1 Resolution target_2: x: name: Target-2 X y: name: Target-2 Y speed: name: Target-2 Speed angle: name: Target-2 Angle distance: name: Target-2 Distance resolution: name: Target-2 Resolution target_3: x: name: Target-3 X y: name: Target-3 Y speed: name: Target-3 Speed angle: name: Target-3 Angle distance: name: Target-3 Distance resolution: name: Target-3 Resolution zone_1: target_count: name: Zone-1 All Target Count still_target_count: name: Zone-1 Still Target Count moving_target_count: name: Zone-1 Moving Target Count zone_2: target_count: name: Zone-2 All Target Count still_target_count: name: Zone-2 Still Target Count moving_target_count: name: Zone-2 Moving Target Count zone_3: target_count: name: Zone-3 All Target Count still_target_count: name: Zone-3 Still Target Count moving_target_count: name: Zone-3 Moving Target Count ``` ## Checklist: - [x] The code change is tested and works locally. - [x] Tests have been added to verify that the new code works (under `tests/` folder). If user exposed functionality or configuration variables are added/changed: - [x] Documentation added/updated in [esphome-docs](https://github.com/esphome/esphome-docs).

RKor · July 19, 2024, 11:46am

Hey guys,

I just flashed this screek-human-sensor/2a/yaml/human-sensor-2a-stable-github.yaml at c34f2f826475eff1a74e6f4b35394ed77fc59e5d · screekworkshop/screek-human-sensor · GitHub

and I’m getting the following error in esphome terminal
ERROR Error Update end: Error: Finishing update failed. See the MQTT/USB logs for more information

But nothing is showing in mqtt, and I don’t know how to view usb logs because the terminal isn’t showing them

bdherouville · July 21, 2024, 12:19pm

Hi,

I have some false positive with a LD2450 sensor outside of the home. The detection looks like triggered by a tree. Is it possible to reduce the sensibility ?

Best regards

jurasjo · July 21, 2024, 2:26pm

Maybe you should use zone, so you can mark the max distance, where the occupancy should be triggered.

michel72 · August 20, 2024, 2:54pm

Hi, I was stupid enough to rely on the iOS HLKRadarTool firmware update and went for the " formal" upgrade which turned out to be a downgrade.

The module still works, but when I try to open it in the app, the app crashes.

Is there any other way to upgrade the module back to a 2.02 or 2.04 version as I am now probably on a 1.x version?

FrankiePibbs · August 28, 2024, 3:24pm

I tried many things, including swapping RX/TX and providing BAUD Rate MAX 115200…but…

Cannot figure to configure it, could someone please write a Detailed procedure, including the header files needed and where they need to be placed?
Thanks

ABHISEK · October 1, 2024, 3:35pm

Hey bro I need the components list and connections can you please give me