ESPHome not available when connecting a LD2410 module

Teckinfor · September 5, 2024, 11:52am

Hello,

I’m new to ESPHome so I apologize in advance if I make any rookie mistakes.

I’m trying to make a presence detector with an S2 Mini and an LD2410C module. I am sure of my connections and my code can be found here :

esphome:
  name: detecteur-presence
  friendly_name: Detecteur de présence

esp32:
  board: lolin_s2_mini
  framework:
    type: arduino

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "tNGr6Axv3U2JuJBvOQVLSAoJyNuq3ePpgpqb6LoFXh4="

ota:
  - platform: esphome
    password: "740f8c67140f070f7c6df31e9f615ec0"

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

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Detecteur-Milimetrique"
    password: "23xVtBnfrnML"

captive_portal:

uart:
  - id: uard1
    tx_pin: 33
    rx_pin: 18
    baud_rate: 9600

ld2410:
  - id: "ld_uart1"
    throttle: 1500ms
    uart_id: uard1

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
      
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

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

web_server:

text_sensor:
  - platform: ld2410
    version:
      name: "firmware version"
    mac_address:
      name: "mac address"

With this same code, if I have the LD2410C module de-soldered, I can access the web page and even remount it in HomeAssistant. But since I soldered it, this is no longer possible.

However, I know that the module is working properly, as I’ve been able to connect to it via Bluetooth and I’m receiving information.

Could you help me understand what’s going on?

Many thanks in advance

alfwro13 · September 5, 2024, 12:01pm

Check the documentation - LD2410 Sensor — ESPHome
baud_rate should be 256000 and not 9600

Teckinfor · September 5, 2024, 1:08pm

Hello thank you for your suggestion
I tried but it stills the same.

And as my s2mini is connected to my windows, i ear it resetting various time.

Here you have the new code :

esphome:
  name: detecteur-presence
  friendly_name: Detecteur de présence

esp32:
  board: lolin_s2_mini
  framework:
    type: arduino

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "tNGr6Axv3U2JuJBvOQVLSAoJyNuq3ePpgpqb6LoFXh4="

ota:
  - platform: esphome
    password: "740f8c67140f070f7c6df31e9f615ec0"

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

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Detecteur-Milimetrique"
    password: "23xVtBnfrnML"

captive_portal:

uart:
  - id: uard1
    tx_pin: 33
    rx_pin: 18
    baud_rate: 256000
    parity: NONE
    stop_bits: 1

ld2410:
  - id: "ld_uart1"
    throttle: 1500ms
    uart_id: uard1

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
      
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

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

web_server:

text_sensor:
  - platform: ld2410
    version:
      name: "firmware version"
    mac_address:
      name: "mac address"

koying · September 5, 2024, 1:57pm

That means that VCC and GND are properly wired. Not more, not less.

What do you see in the esphome logging?
Did you cross TX and RX?

Teckinfor · September 5, 2024, 2:34pm

If i refer to the Wemos documentation, the TX and RX are correctly configured :

And the module is this one: HLK-LD2410C capteur de présence RF 24GHz – Esp32Lab.com

And during logging nothing… But what i don’t understand is that my ESP was working before adding the LD2140c module
I’m trying to learn but it’s not that simple haha

koying · September 5, 2024, 2:40pm

I meant the TX of the ESP should go to the RX of the LD240, and vice-versa.

Also, I think the hardware uart runs on pin 37/39 on that board.
I guess it should work on software uart as well…

Teckinfor · September 5, 2024, 2:47pm

I’ve seen a lot of tutorials that set up their LD2410c like me and worked.
I’m convinced that’s not where the problem lies.

Teckinfor · September 5, 2024, 8:42pm

It seems that the ESP stopped founding my network but i don’t understand why

Teckinfor · September 5, 2024, 8:59pm

Adding a static IP resolved the problem, don’t understand why…
Hope it can help someone else

But now i still not having information from the LD2410C

nickrout · September 6, 2024, 6:14am

Is there a reason for using the Arduino framework? If it’s recommended for the s2. ESP32 Platform — ESPHome

Teckinfor · September 6, 2024, 7:33am

To be honest, is what i saw in a tutorial but let’s try
I’m not sure about the difference between both but i’ll attempt

Teckinfor · September 6, 2024, 8:00am

Same as before :

Here is the yaml file :

esphome:
  name: detecteur-presence
  friendly_name: Detecteur de présence

esp32:
  board: lolin_s2_mini
  framework:
    type: esp-idf
    version: recommended

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "tNGr6Axv3U2JuJBvOQVLSAoJyNuq3ePpgpqb6LoFXh4="

ota:
  - platform: esphome
    password: "740f8c67140f070f7c6df31e9f615ec0"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  output_power: 8.5
  
  manual_ip:
    static_ip: 192.168.129.206
    gateway: 192.168.128.1
    subnet: 255.255.0.0

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Detecteur-Milimetrique"
    password: "23xVtBnfrnML"

captive_portal:

uart:
  - id: uard1
    tx_pin: 33
    rx_pin: 18
    baud_rate: 256000
    parity: NONE
    stop_bits: 1

ld2410:
  - id: "ld_uart1"
    throttle: 1500ms
    uart_id: uard1

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
      
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

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
      
web_server:

text_sensor:
  - platform: ld2410
    version:
      name: "firmware version"
    mac_address:
      name: "mac address"

koying · September 6, 2024, 9:16am

The esphome log might be useful

Teckinfor · September 6, 2024, 11:31am

There is nothing significant :

INFO ESPHome 2024.8.3
INFO Reading configuration /config/esphome/detecteur-de-presence.yaml...
INFO Starting log output from 192.168.129.206 using esphome API
INFO Successfully connected to detecteur-presence @ 192.168.129.206 in 0.077s
INFO Successful handshake with detecteur-presence @ 192.168.129.206 in 0.110s
[13:30:05][I][app:100]: ESPHome version 2024.8.3 compiled on Sep  6 2024, 09:56:06
[13:30:05][C][wifi:600]: WiFi:
[13:30:05][C][wifi:428]:   Local MAC: 84:F7:03:DD:BA:3E
[13:30:05][C][wifi:433]:   SSID: [redacted]
[13:30:05][C][wifi:436]:   IP Address: 192.168.129.206
[13:30:05][C][wifi:440]:   BSSID: [redacted]
[13:30:05][C][wifi:441]:   Hostname: 'detecteur-presence'
[13:30:05][C][wifi:443]:   Signal strength: -64 dB ▂▄▆█
[13:30:05][C][wifi:447]:   Channel: 11
[13:30:05][C][wifi:448]:   Subnet: 255.255.0.0
[13:30:05][C][wifi:449]:   Gateway: 192.168.128.1
[13:30:05][C][wifi:450]:   DNS1: 0.0.0.0
[13:30:05][C][wifi:451]:   DNS2: 0.0.0.0
[13:30:05][C][logger:185]: Logger:
[13:30:05][C][logger:186]:   Level: DEBUG
[13:30:05][C][logger:188]:   Log Baud Rate: 115200
[13:30:05][C][logger:189]:   Hardware UART: USB_CDC
[13:30:05][C][uart.idf:161]:   RX Pin: GPIO18
[13:30:05][C][uart.idf:163]:   RX Buffer Size: 256
[13:30:05][C][uart.idf:165]:   Baud Rate: 256000 baud
[13:30:05][C][uart.idf:166]:   Data Bits: 8
[13:30:05][C][uart.idf:167]:   Parity: NONE
[13:30:05][C][uart.idf:168]:   Stop bits: 1
[13:30:05][C][ld2410:022]: LD2410:
[13:30:05][C][ld2410:024]:   TargetBinarySensor 'Presence'
[13:30:05][C][ld2410:024]:     Device Class: 'occupancy'
[13:30:05][C][ld2410:025]:   MovingTargetBinarySensor 'Moving Target'
[13:30:05][C][ld2410:025]:     Device Class: 'motion'
[13:30:05][C][ld2410:026]:   StillTargetBinarySensor 'Still Target'
[13:30:05][C][ld2410:026]:     Device Class: 'occupancy'
[13:30:05][C][ld2410:027]:   OutPinPresenceStatusBinarySensor 'out pin presence status'
[13:30:05][C][ld2410:027]:     Device Class: 'presence'
[13:30:05][C][ld2410:039]:   LightSensor 'light'
[13:30:05][C][ld2410:039]:     Device Class: 'illuminance'
[13:30:05][C][ld2410:039]:     State Class: ''
[13:30:05][C][ld2410:039]:     Unit of Measurement: ''
[13:30:05][C][ld2410:039]:     Accuracy Decimals: 0
[13:30:05][C][ld2410:039]:     Icon: 'mdi:lightbulb'
[13:30:05][C][ld2410:040]:   MovingTargetDistanceSensor 'Moving Distance'
[13:30:05][C][ld2410:040]:     Device Class: 'distance'
[13:30:05][C][ld2410:040]:     State Class: ''
[13:30:05][C][ld2410:040]:     Unit of Measurement: 'cm'
[13:30:05][C][ld2410:040]:     Accuracy Decimals: 0
[13:30:05][C][ld2410:040]:     Icon: 'mdi:signal-distance-variant'
[13:30:05][C][ld2410:041]:   StillTargetDistanceSensor 'Still Distance'
[13:30:05][C][ld2410:041]:     Device Class: 'distance'
[13:30:05][C][ld2410:041]:     State Class: ''
[13:30:05][C][ld2410:041]:     Unit of Measurement: 'cm'
[13:30:05][C][ld2410:041]:     Accuracy Decimals: 0
[13:30:05][C][ld2410:041]:     Icon: 'mdi:signal-distance-variant'
[13:30:05][C][ld2410:042]:   MovingTargetEnergySensor 'Move Energy'
[13:30:05][C][ld2410:042]:     State Class: ''
[13:30:05][C][ld2410:042]:     Unit of Measurement: '%'
[13:30:05][C][ld2410:042]:     Accuracy Decimals: 0
[13:30:05][C][ld2410:042]:     Icon: 'mdi:motion-sensor'
[13:30:05][C][ld2410:043]:   StillTargetEnergySensor 'Still Energy'
[13:30:05][C][ld2410:043]:     State Class: ''
[13:30:05][C][ld2410:043]:     Unit of Measurement: '%'
[13:30:05][C][ld2410:043]:     Accuracy Decimals: 0
[13:30:05][C][ld2410:043]:     Icon: 'mdi:flash'
[13:30:05][C][ld2410:044]:   DetectionDistanceSensor 'Detection Distance'
[13:30:05][C][ld2410:044]:     Device Class: 'distance'
[13:30:05][C][ld2410:044]:     State Class: ''
[13:30:05][C][ld2410:044]:     Unit of Measurement: 'cm'
[13:30:05][C][ld2410:044]:     Accuracy Decimals: 0
[13:30:05][C][ld2410:044]:     Icon: 'mdi:signal-distance-variant'
[13:30:05][C][ld2410:053]:   VersionTextSensor 'firmware version'
[13:30:05][C][ld2410:053]:     Icon: 'mdi:chip'
[13:30:05][C][ld2410:054]:   MacTextSensor 'mac address'
[13:30:05][C][ld2410:054]:     Icon: 'mdi:bluetooth'
[13:30:05][C][ld2410:063]:   LightThresholdNumber 'light threshold'
[13:30:05][C][ld2410:063]:     Icon: 'mdi:lightbulb'
[13:30:05][C][ld2410:063]:     Device Class: 'illuminance'
[13:30:05][C][ld2410:064]:   MaxStillDistanceGateNumber 'max still distance gate'
[13:30:05][C][ld2410:064]:     Icon: 'mdi:motion-sensor'
[13:30:05][C][ld2410:064]:     Device Class: 'distance'
[13:30:05][C][ld2410:065]:   MaxMoveDistanceGateNumber 'max move distance gate'
[13:30:05][C][ld2410:065]:     Icon: 'mdi:motion-sensor'
[13:30:05][C][ld2410:065]:     Device Class: 'distance'
[13:30:05][C][ld2410:066]:   TimeoutNumber 'timeout'
[13:30:05][C][ld2410:066]:     Icon: 'mdi:timelapse'
[13:30:05][C][ld2410:066]:     Unit of Measurement: 's'
[13:30:05][C][ld2410:075]:   Throttle_ : 1500ms
[13:30:05][C][ld2410:076]:   MAC Address : 
[13:30:05][C][ld2410:077]:   Firmware Version : 
[13:30:05][C][captive_portal:088]: Captive Portal:
[13:30:06][C][web_server:145]: Web Server:
[13:30:06][C][web_server:146]:   Address: 192.168.129.206:80
[13:30:06][C][mdns:116]: mDNS:
[13:30:06][C][mdns:117]:   Hostname: detecteur-presence
[13:30:06][C][esphome.ota:073]: Over-The-Air updates:
[13:30:06][C][esphome.ota:074]:   Address: 192.168.129.206:3232
[13:30:06][C][esphome.ota:075]:   Version: 2
[13:30:06][C][esphome.ota:078]:   Password configured
[13:30:06][C][safe_mode:018]: Safe Mode:
[13:30:06][C][safe_mode:020]:   Boot considered successful after 60 seconds
[13:30:06][C][safe_mode:021]:   Invoke after 10 boot attempts
[13:30:06][C][safe_mode:023]:   Remain in safe mode for 300 seconds
[13:30:06][C][api:139]: API Server:
[13:30:06][C][api:140]:   Address: 192.168.129.206:6053
[13:30:06][C][api:142]:   Using noise encryption: YES

koying · September 6, 2024, 12:49pm

Not sure if it’s needed considering you are using a software uart, but I have to do

logger:
  baud_rate: 0

to disable serial logging in order to use the uart.
That doesn’t prevent network logging.

walberjunior · September 6, 2024, 4:41pm

If you are soldering the LD2410 pins directly to the ESP, your TX and RX are reversed.

uart:
  id: ld2410_uart
  tx_pin: GPIO18
  rx_pin: GPIO33
  baud_rate: 256000
  parity: NONE
  stop_bits: 1

Teckinfor · September 7, 2024, 6:26pm

You are a genius
But why ? I don’t understand why do we have to switch them

zenzay42 · September 7, 2024, 7:10pm

The reason, as explained earlier, is that tx on the LD2410c should be connected to rx on the ESP and rx to tx.

nickrout · September 7, 2024, 9:59pm

When device A is transmitting device B is receiving. Simple when you think it through.

koying · September 7, 2024, 10:29pm

2 days ago