LD2410 esphome tips

orochifj · June 8, 2025, 5:25pm

Hi guys, need some help. I’ve been looking into this for many days.

I updated my ESPHome to the latest version and discovered that my LD2410 sensor is not working.
I connected the LD2410 to a D1 Mini ESP32.

I also noticed that I keep getting the following warning:

No matter which option I choose, it still does not resolve the issue.

Things I have tried:

Deleted the device from the ESPHome integration.
Reinstalled ESP32 with a different name.
Reinstalled ESP32 with a suffix.
Installed a brand new D1 Mini ESP32 + LD2410.
Removed “mac_address” in yaml
None of these worked.

Currently, I am encountering:

Device conflict warning.

esphome:
  name: esp-kitchen-sensor
  friendly_name: esp-kitchen-sensor

esp32:
  board: esp32dev
  framework:
    type: arduino

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "VFQMy3XLCJ+FaqtUd62lyiGNv6S8ZuSSKmOWkvpxl80="

ota:
  - platform: esphome
    password: "80555ccf888ceeb91cf912eae43bf72a"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Esp-Kitchen-Sensor"
    password: "O1QxLemD4aTA"

i2c:
  sda: 21
  scl: 22
  scan: true
  id: bus_a
 
uart:
  id: ld2410_uart
  tx_pin: RX
  rx_pin: TX
  baud_rate: 256000
  parity: NONE
  stop_bits: 1

ld2410:
  uart_id: ld2410_uart

number:
  - platform: ld2410
    timeout:
      name: Timeout
    light_threshold:
      name: Light Threshold
    max_move_distance_gate:
      name: Max Move Distance Gate
    max_still_distance_gate:
      name: Max Still Distance Gate
    g0:
      move_threshold:
        name: g0 move threshold
      still_threshold:
        name: g0 still threshold
    g1:
      move_threshold:
        name: g1 move threshold
      still_threshold:
        name: g1 still threshold
    g2:
      move_threshold:
        name: g2 move threshold
      still_threshold:
        name: g2 still threshold
    g3:
      move_threshold:
        name: g3 move threshold
      still_threshold:
        name: g3 still threshold
    g4:
      move_threshold:
        name: g4 move threshold
      still_threshold:
        name: g4 still threshold
    g5:
      move_threshold:
        name: g5 move threshold
      still_threshold:
        name: g5 still threshold
    g6:
      move_threshold:
        name: g6 move threshold
      still_threshold:
        name: g6 still threshold
    g7:
      move_threshold:
        name: g7 move threshold
      still_threshold:
        name: g7 still threshold
    g8:
      move_threshold:
        name: g8 move threshold
      still_threshold:
        name: g8 still threshold

select:
  - platform: ld2410
    distance_resolution:
      name: Distance Resolution
    baud_rate:
      name: Baud Rate
    light_function:
      name: Light Function
    out_pin_level:
      name: Out Pin Level

sensor:
  - platform: ld2410
    light:
      name: Light
    moving_distance:
      name: Moving Distance
    still_distance:
      name: Still Distance
    moving_energy:
      name: Move Energy
    still_energy:
      name: Still Energy
    detection_distance:
      name: Detection Distance
    g0:
      move_energy:
        name: g0 move energy
      still_energy:
        name: g0 still energy
    g1:
      move_energy:
        name: g1 move energy
      still_energy:
        name: g1 still energy
    g2:
      move_energy:
        name: g2 move energy
      still_energy:
        name: g2 still energy
    g3:
      move_energy:
        name: g3 move energy
      still_energy:
        name: g3 still energy
    g4:
      move_energy:
        name: g4 move energy
      still_energy:
        name: g4 still energy
    g5:
      move_energy:
        name: g5 move energy
      still_energy:
        name: g5 still energy
    g6:
      move_energy:
        name: g6 move energy
      still_energy:
        name: g6 still energy
    g7:
      move_energy:
        name: g7 move energy
      still_energy:
        name: g7 still energy
    g8:
      move_energy:
        name: g8 move energy
      still_energy:
        name: g8 still energy

binary_sensor:
  - platform: ld2410
    has_target:
      name: Presence
    has_moving_target:
      name: Moving Target
    has_still_target:
      name: Still Target
    out_pin_presence_status:
      name: Out Pin Presence Status

switch:
  - platform: ld2410
    engineering_mode:
      name: Engineering Mode
    bluetooth:
      name: Control Bluetooth

# button:
#   - platform: ld2410
#     factory_reset:
#       name: Factory Reset
#     restart:
#       name: Restart
#     query_params:
#       name: Query Params

text_sensor:
  - platform: ld2410
    version:
      name: Firmware Version
    mac_address:
      name: MAC

esphome:
  name: esphome-web-00c0fb
  friendly_name: kitchen-presence-sensor
  min_version: 2025.5.0
  name_add_mac_suffix: false

esp32:
  board: esp32dev
  framework:
    type: arduino


# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "f8EyhkX4wnkBdyow+UvISs4HsBfIQejiAPWtFJ6FKK4="

ota:
  - platform: esphome
    password: "a202973e7827b10cb56cdb6fb04e23fb"

wifi:
  networks:
  - ssid: !secret wifi_ssid1
    password: !secret wifi_password1
  - ssid: !secret wifi_ssid2
    password: !secret wifi_password2


  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Kitchen-Presence"
    password: "hmi6yVt2WYJR"

captive_portal:
    
light:
  - platform: binary
    name: "Blue Status Light"
    output: light_output
    id: led_light
    restore_mode: ALWAYS_OFF
 
output:
  - platform: gpio
    pin: GPIO2
    id: light_output
 
i2c:
  sda: 21
  scl: 22
  scan: true
  id: bus_a
 
uart:
  id: ld2410_uart
  tx_pin: RX
  rx_pin: TX
  baud_rate: 256000
  parity: NONE
  stop_bits: 1
 
ld2410:
  uart_id: ld2410_uart
  throttle: 1500ms
  id: ld2410_comp
 
select:
  - platform: ld2410
    distance_resolution:
      name: distance resolution
    baud_rate:
      name: baud rate
    light_function:
      name: light function
    out_pin_level:
      name: out pin level
 
# button:
#   - platform: ld2410
#     factory_reset:
#       name: "factory reset"
#     restart:
#       name: "restart"
#     query_params:
#       name: query params
 
number:
  - platform: ld2410
    timeout:
      name: timeout
    max_move_distance_gate:
      name: max move distance gate
    max_still_distance_gate:
      name: max still distance gate
    g0:
      move_threshold:
        name: g0 move threshold
      still_threshold:
        name: g0 still threshold
    g1:
      move_threshold:
        name: g1 move threshold
      still_threshold:
        name: g1 still threshold
    g2:
      move_threshold:
        name: g2 move threshold
      still_threshold:
        name: g2 still threshold
    g3:
      move_threshold:
        name: g3 move threshold
      still_threshold:
        name: g3 still threshold
    g4:
      move_threshold:
        name: g4 move threshold
      still_threshold:
        name: g4 still threshold
    g5:
      move_threshold:
        name: g5 move threshold
      still_threshold:
        name: g5 still threshold
    g6:
      move_threshold:
        name: g6 move threshold
      still_threshold:
        name: g6 still threshold
    g7:
      move_threshold:
        name: g7 move threshold
      still_threshold:
        name: g7 still threshold
    g8:
      move_threshold:
        name: g8 move threshold
      still_threshold:
        name: g8 still threshold
    light_threshold:
      name: light threshold
 
text_sensor:
  - platform: ld2410
    version:
      name: "presenece sensor version"
    mac_address:
      name: "presenece sensor mac address"
 
switch:
  - platform: ld2410
    engineering_mode:
      name: "engineering mode"
    bluetooth:
      name: control Bluetooth
 
sensor:
  - platform: ld2410
    moving_distance:
      name: "Moving distance (cm)"
    still_distance:
      name: "Still Distance (cm)"
    moving_energy:
      name: "Move Energy (%)"
    still_energy:
      name: "Still Energy (%)"
    detection_distance:
      name: "Distance Detection (cm)"
    g0:
      move_energy:
        name: g0 move energy
      still_energy:
        name: g0 still energy
    g1:
      move_energy:
        name: g1 move energy
      still_energy:
        name: g1 still energy
    g2:
      move_energy:
        name: g2 move energy
      still_energy:
        name: g2 still energy
    g3:
      move_energy:
        name: g3 move energy
      still_energy:
        name: g3 still energy
    g4:
      move_energy:
        name: g4 move energy
      still_energy:
        name: g4 still energy
    g5:
      move_energy:
        name: g5 move energy
      still_energy:
        name: g5 still energy
    g6:
      move_energy:
        name: g6 move energy
      still_energy:
        name: g6 still energy
    g7:
      move_energy:
        name: g7 move energy
      still_energy:
        name: g7 still energy
    g8:
      move_energy:
        name: g8 move energy
      still_energy:
        name: g8 still energy
    light:
      name: light
 
  - platform: bh1750
    name: "Illuminance"
    address: 0x23
    update_interval: 30s
 
binary_sensor:
 
  - platform: ld2410
    has_target:
      name: Presence
    has_moving_target:
      name: Moving Target
    has_still_target:
      name: Still Target

ESPHome integration device does not have any entities published from ESP32 to HA.
LD2410 appears to be working fine, as I can access the logs wirelessly and see data updating in the logs.

Any clues, tips, or help?

chickey · July 31, 2025, 12:33pm

At a guess you’ll have to switch from arduino to IDF ala. I would imagine it’s ran out of memory. If you do a log view over usb you may find it’s in a constant boot loop.

  board: esp32dev
  framework:
    type: esp-idf

Zorchz · August 10, 2025, 12:14pm

I just setup move and still thresholds and want to save it some how,
what options do I have? Ideally I want to save thresholds to yaml.
But this way doesn’t work.

Akriss · August 10, 2025, 3:53pm

There is a example to work from on Esphome’s LD2410 info page: LD2410 Sensor — ESPHome

  - platform: ld2410
    light:
      name: light
    moving_distance:
      name: Moving Distance
    still_distance:
      name: Still Distance
    moving_energy:
      name: Move Energy
    still_energy:
      name: Still Energy
    detection_distance:
      name: Detection Distance
    g0:
      move_energy:
        name: g0 move energy
      still_energy:
        name: g0 still energy
    g1:
      move_energy:
        name: g1 move energy
      still_energy:
        name: g1 still energy
    g2:
      move_energy:
        name: g2 move energy
      still_energy:
        name: g2 still energy
    g3:
      move_energy:
        name: g3 move energy
      still_energy:
        name: g3 still energy
    g4:
      move_energy:
        name: g4 move energy
      still_energy:
        name: g4 still energy
    g5:
      move_energy:
        name: g5 move energy
      still_energy:
        name: g5 still energy
    g6:
      move_energy:
        name: g6 move energy
      still_energy:
        name: g6 still energy
    g7:
      move_energy:
        name: g7 move energy
      still_energy:
        name: g7 still energy
    g8:
      move_energy:
        name: g8 move energy
      still_energy:
        name: g8 still energy ```

Zorchz · August 10, 2025, 4:36pm

I mean to save thresholds values to avoid it setting up again in case of factory reset or new setup new board

Edwin_D · August 10, 2025, 5:23pm

They are meant as inputs, I think the values are stored in the sensor itself. When I moved one to a new esp, the settings remained intact. If you really need to have the values in yaml, you can create a script to set the values.

stewart · August 22, 2025, 6:01pm

I’ve got a recent LD2410C connected to a Qt Py and an 8266 and both have the same issue: none of the settings take effect when set through HA / ESPHome. I have to use the Android app via Bluetooth. Once I make that connection from the app, the settings show up properly in HA. Before that, changing max gates, toggling eng mode, etc are not persistent. So it’s not a communication issue. I can read the motion / presence output of the sensor just fine over the serial port and over bluetooth. The LD2410C has the latest firmware.

bjk8kds · August 27, 2025, 2:03am

Maybe the TX pin not connected properly? To read you only need RX pin.

stewart · August 27, 2025, 5:22am

I think one of my LD2410C is defective. They all have the same firmware but this one responds differently.

RogerClark · November 13, 2025, 6:21am

Can anyone tell me whether the individual gate movement values can be read in a lambda ?

e.g. set and id for the g0 move energy

 g0:
      move_energy:
        internal: true
        name: g0 move energy
        id: g0MoveEnergy

and read

ESP_LOGD("CUSTOM"," G0 move %d", id(g0MoveEnergy).state);

However the value that is logged is not the sensor value

It always seems to be -2147483648

same for

ESP_LOGD("CUSTOM"," G0 move %d", id(g0MoveEnergy));

both times it looks like the value is simply a pointer to a data struct or pointer to function.