I would print front plate as thin as possible and place sensor as close as possible to front plastic - microwave can somewhat reflect from plastic, although not much, but enough to make havoc…
Ideally front of the sensor would be exposed, but it’s not practical (dust,insects…)
Left a 2410 outside in the sun and rain enveloped in a tape like this. Should work great as a front plate. Don’t have a 3d printer yet.
1 Like
Could you share the yaml for this card? I’m looking for something to make the configuration of the sensor easier. Right now I see presence detected sometimes but I have to check all the gates to find out which of them triggered the sensor.
Hi Chreece,
Many thank for your shared work.
I tried but it seems not to work correctly. The sensor (presence) is “unknown” state although I tried different board (Wemos mini D1 and CH9102X (ESP-32 based).
Below is my actual config:
# Change device name to match your desired name
device_name: "2411s"
# Change sensor name below to the one you want to be exposed in Home Assistant
device_name_pretty: LD2411S Test
# UART TX Pin
uart_tx_pin: GPIO21
# UART RX Pin
uart_rx_pin: GPIO22
esp32:
board: nodemcu-32s
framework:
type: arduino
esphome:
# name: 2411s
# friendly_name: 2411S
name: $device_name
includes:
- LD2411s.h
# platformio_options:
# board_upload.flash_size: 4MB
on_boot:
priority: 250
then:
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFF, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x02, 0x00, 0x73, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFE, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
#esphome:
# name: 2411s
# friendly_name: 2411S
#esp32:
# board: esp32dev
# framework:
# type: arduino
# Enable Home Assistant API
api:
encryption:
key: "/nS+vVV3TbfITHAWd40Kp9hsaMdHVHj29774mQoUFf4="
ota:
password: "c2455532eff013ec3f2e2b9ed94d7397"
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "2411S Fallback Hotspot"
password: "iQdCbSTOBry3"
captive_portal:
# Enable logging
logger:
logs:
sensor: INFO # reduced logging to minimize web_server target overload..
web_server:
port: 80
version: 2
include_internal: true
http_request:
useragent: esphome/$device_name
timeout: 2s
uart:
id: uart_bus
tx_pin: ${uart_tx_pin}
rx_pin: ${uart_rx_pin}
baud_rate: 115200 #256000
parity: NONE
stop_bits: 1
sensor:
- platform: custom
lambda: |-
auto my_sensor = new UARTSensor(id(uart_bus));
App.register_component(my_sensor);
return {my_sensor->distance_sensor, my_sensor->presence_sensor, my_sensor->motion_sensor, my_sensor->max_motion_sensor, my_sensor->min_motion_sensor, my_sensor->max_presence_sensor, my_sensor->min_presence_sensor, my_sensor->unocc_time_sensor};
sensors:
- name: "${device_name} Distance"
state_class: measurement
id: distance_sensor
unit_of_measurement: cm
- id: presence_sensor
name: "internal_presense_sensor_to_binary_template"
internal: true
on_value:
- binary_sensor.template.publish:
id: presence_template
state: !lambda return x > 0;
- id: motion_sensor
name: "internal_motion_sensor_to_binary_template"
internal: true
on_value:
- binary_sensor.template.publish:
id: motion_template
state: !lambda return x > 0;
- name: "internal_max_motion"
id: max_motion_sensor
internal: true
on_value:
- number.set:
id: maxmotion
value: !lambda return x;
- name: "internal_min_motion"
id: min_motion_sensor
internal: true
on_value:
- number.set:
id: minmotion
value: !lambda return x;
- name: "internal_max_presence"
id: max_presence_sensor
internal: true
on_value:
- number.set:
id: maxpresence
value: !lambda return x;
- name: "internal_min_presence"
id: min_presence_sensor
internal: true
on_value:
- number.set:
id: minpresence
value: !lambda return x;
- name: "internal_unocc"
id: unocc_time_sensor
internal: true
on_value:
- number.set:
id: unocc_time
value: !lambda return x;
number:
- platform: template
name: "${device_name} Min Motion Distance"
id: minmotion
optimistic: true
unit_of_measurement: cm
min_value: 30
max_value: 717
step: 1
- platform: template
name: "${device_name} Max Motion Distance"
id: maxmotion
optimistic: true
unit_of_measurement: cm
min_value: 30
max_value: 717
step: 1
- platform: template
name: "${device_name} Min Presence Distance"
id: minpresence
optimistic: true
unit_of_measurement: cm
min_value: 30
max_value: 425
step: 1
- platform: template
name: "${device_name} Max Presence Distance"
id: maxpresence
optimistic: true
unit_of_measurement: cm
min_value: 30
max_value: 425
step: 1
- platform: template
name: "${device_name} Unoccupied Time"
id: unocc_time
optimistic: true
unit_of_measurement: sec
min_value: 0
max_value: 6553
step: 1
binary_sensor:
- platform: template
id: presence_template
name: "${device_name} Presence"
device_class: occupancy
filters:
- delayed_off: 5s
- platform: template
id: motion_template
name: "${device_name} Motion"
device_class: motion
filters:
- delayed_off: 5s
switch:
- platform: template
name: "${device_name} Bluetooth"
id: human_switch
optimistic: true
restore_mode: "RESTORE_DEFAULT_ON"
turn_on_action:
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFF, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xA4, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x02, 0x00, 0xA3, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFE, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
turn_off_action:
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFF, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xA4, 0x00, 0x00, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x02, 0x00, 0xA3, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFE, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
button:
- platform: restart
name: "Restart MCU: ${device_name}"
entity_category: diagnostic
on_press:
- uart.write:
id: uart_bus
data: "resetSystem 0"
- platform: template
name: "${device_name} Reboot Module"
id: reboot_module
entity_category: diagnostic
on_press:
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFF, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x02, 0x00, 0xA3, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFE, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- platform: template
name: "${device_name} Factory Reset"
id: reset_module
entity_category: diagnostic
on_press:
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFF, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x02, 0x00, 0xA2, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFE, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- platform: template
name: "${device_name} Set Parameter"
id: param_set
entity_category: diagnostic
on_press:
- script.execute: statepublish
script:
- id: statepublish
then:
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFF, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write:
id: uart_bus
data: !lambda
int minmot = id(minmotion).state;
int maxmot = id(maxmotion).state;
int minpr = id(minpresence).state;
int maxpr = id(maxpresence).state;
int unocctm = id(unocc_time).state;
uint16_t minmvalue = static_cast<uint16_t>(minmot);
uint8_t minmhighByte = static_cast<uint8_t>(minmvalue >> 8);
uint8_t minmlowByte = static_cast<uint8_t>(minmvalue & 0xFF);
uint16_t maxmvalue = static_cast<uint16_t>(maxmot);
uint8_t maxmhighByte = static_cast<uint8_t>(maxmvalue >> 8);
uint8_t maxmlowByte = static_cast<uint8_t>(maxmvalue & 0xFF);
uint16_t minpvalue = static_cast<uint16_t>(minpr);
uint8_t minphighByte = static_cast<uint8_t>(minpvalue >> 8);
uint8_t minplowByte = static_cast<uint8_t>(minpvalue & 0xFF);
uint16_t maxpvalue = static_cast<uint16_t>(maxpr);
uint8_t maxphighByte = static_cast<uint8_t>(maxpvalue >> 8);
uint8_t maxplowByte = static_cast<uint8_t>(maxpvalue & 0xFF);
uint16_t unoccvalue = static_cast<uint16_t>(unocctm * 10);
uint8_t unocchighByte = static_cast<uint8_t>(unoccvalue >> 8);
uint8_t unocclowByte = static_cast<uint8_t>(unoccvalue & 0xFF);
std::vector<uint8_t> data = {0xFD, 0xFC, 0xFB, 0xFA, 0x20, 0x00, 0x67, 0x00, 0x00, 0x00, maxmlowByte, maxmhighByte, 0x00, 0x00, 0x01, 0x00, minmlowByte, minmhighByte, 0x00, 0x00, 0x02, 0x00, maxplowByte, maxphighByte, 0x00, 0x00, 0x03, 0x00, minplowByte, minphighByte, 0x00, 0x00, 0x04, 0x00, unocclowByte, unocchighByte, 0x00, 0x00, 0x04, 0x03, 0x02, 0x01};
return data;
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFE, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
type or paste code here
I almost utilized your config except for:
encryption:
key: "/nS+vVV3TbfITHAWd40Kp9hsaMdHVHj29774mQoUFf4="
ota:
password: "c2455532eff013ec3f2e2b9ed94d73"
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "2411S Fallback Hotspot"
password: "iQdCbSTOBry3"
type or paste code here
And remove:
platformio_options:
board_upload.flash_size: 4MB
For the system report:
Blockquote
INFO ESPHome 2023.12.5
INFO Reading configuration /config/esphome/2411s.yaml…
Failed config
esp32: None
Please specify flash_size within esp32 configuration only.
board: nodemcu-32s
framework:
version: 2.0.5
source: ~3.20005.0
platform_version: platformio/[email protected]
type: arduino
flash_size: 4MB
variant: ESP32
Blockquote
Can you help to solve it?
Thank you
Try to remove the line: framework: type: arduino from your config
Thank you, I already removed and uploaded, but the state alway show “unknown”. I also tried to update the LD2411S firmware but no luck
Please check the connections (Rx to Tx and Tx to Rx) and make sure you have the S version and not the plain one.
If the state is unknown it means that the ESPHome doesn’t get any data from the sensor
Dear ChreeceGR,
I am sure to connect right, I even change connection revertly to be sure but no change at all.
Possiblly it the LD2411 version, not LD2411S version as the seller described. I notice the printing on the board HLK-LD2411 and ask the seller about that, he told me that’s just the printing.
So, I have to make a return to the seller
Thank you.
Ist there any isolation on the wires? From the photo it seems they are naked copper and two of them having a contact
Yes, it is.
The wire is insulated.
The wire is from stator of a dead motor
Believe me, I connected the wires right
interesting gates graphical card.
Can you share your lovelace code for them?
I also have ordered two of these to test. The thing is that on my esp32 board I had RX0 and TX0 labeled pins which didn’t work. No data in home assistant, hlk bluetooth app works fine.
Than I changed the pins to use GPIO21 and GPIO22 and it worked.
So my setup is like this;
(yea, a lot going on there
)
My issue currently is that it seems to be unstable somehow. When its working, its working. But sometimes it just doesn’t register any movement at all. like somehow the connection is lost now and then for a few moments than coming back. Not sure tho if its about my overused board or the device itself.
And here is my yaml;
substitutions:
name: esphome-web-aef658
friendly_name: Office - Multisensor
uart_tx_pin: GPIO21
uart_rx_pin: GPIO22
esphome:
name: ${name}
friendly_name: ${friendly_name}
name_add_mac_suffix: false
includes:
- LD2411s.h
project:
name: esphome.web
version: '1.0'
on_boot:
priority: 250
then:
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFF, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x02, 0x00, 0x73, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFE, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
esp32:
board: esp32dev
framework:
type: arduino
# Enable logging
logger:
logs:
sensor: INFO # reduced logging to minimize web_server target overload..
# Enable Home Assistant API
api:
# Allow Over-The-Air updates
ota:
# Allow provisioning Wi-Fi via serial
improv_serial:
wifi:
manual_ip:
static_ip: 192.168.1.5
gateway: 192.168.1.1
subnet: 255.255.255.0
# In combination with the `ap` this allows the user
# to provision wifi credentials to the device via WiFi AP.
captive_portal:
dashboard_import:
package_import_url: github://esphome/example-configs/esphome-web/esp32.yaml@main
import_full_config: true
# Sets up Bluetooth LE (Only on ESP32) to allow the user
# to provision wifi credentials to the device.
esp32_improv:
authorizer: none
web_server:
uart:
id: uart_bus
tx_pin: ${uart_tx_pin}
rx_pin: ${uart_rx_pin}
baud_rate: 256000
parity: NONE
stop_bits: 1
number:
- platform: template
name: Servo Control
min_value: -100
initial_value: 0
max_value: 100
step: 1
optimistic: true
on_value:
- servo.write:
id: my_servo
level: !lambda 'return x / 100.0;'
- platform: template
name: "${name} Min Motion Distance"
id: minmotion
optimistic: true
unit_of_measurement: cm
min_value: 30
max_value: 717
step: 1
- platform: template
name: "${name} Max Motion Distance"
id: maxmotion
optimistic: true
unit_of_measurement: cm
min_value: 30
max_value: 717
step: 1
- platform: template
name: "${name} Min Presence Distance"
id: minpresence
optimistic: true
unit_of_measurement: cm
min_value: 30
max_value: 425
step: 1
- platform: template
name: "${name} Max Presence Distance"
id: maxpresence
optimistic: true
unit_of_measurement: cm
min_value: 30
max_value: 425
step: 1
- platform: template
name: "${name} Unoccupied Time"
id: unocc_time
optimistic: true
unit_of_measurement: sec
min_value: 0
max_value: 6553
step: 1
servo:
- id: my_servo
output: pwm_output
transition_length: 2.0s
output:
- platform: ledc
id: pwm_output
pin: 32
frequency: 50 Hz
sensor:
- platform: adc
pin: 35
name: "Temperature Sensor"
update_interval: 5s
unit_of_measurement: "°C"
filters:
- lambda: return (x - 0.5) * 100;
- platform: custom
lambda: |-
auto my_sensor = new UARTSensor(id(uart_bus));
App.register_component(my_sensor);
return {my_sensor->distance_sensor, my_sensor->presence_sensor, my_sensor->motion_sensor, my_sensor->max_motion_sensor, my_sensor->min_motion_sensor, my_sensor->max_presence_sensor, my_sensor->min_presence_sensor, my_sensor->unocc_time_sensor};
sensors:
- name: "${name} Distance"
state_class: measurement
id: distance_sensor
unit_of_measurement: cm
- id: presence_sensor
name: "internal_presense_sensor_to_binary_template"
internal: true
on_value:
- binary_sensor.template.publish:
id: presence_template
state: !lambda return x > 0;
- id: motion_sensor
name: "internal_motion_sensor_to_binary_template"
internal: true
on_value:
- binary_sensor.template.publish:
id: motion_template
state: !lambda return x > 0;
- name: "internal_max_motion"
id: max_motion_sensor
internal: true
on_value:
- number.set:
id: maxmotion
value: !lambda return x;
- name: "internal_min_motion"
id: min_motion_sensor
internal: true
on_value:
- number.set:
id: minmotion
value: !lambda return x;
- name: "internal_max_presence"
id: max_presence_sensor
internal: true
on_value:
- number.set:
id: maxpresence
value: !lambda return x;
- name: "internal_min_presence"
id: min_presence_sensor
internal: true
on_value:
- number.set:
id: minpresence
value: !lambda return x;
- name: "internal_unocc"
id: unocc_time_sensor
internal: true
on_value:
- number.set:
id: unocc_time
value: !lambda return x;
# - platform: adc
# pin: 33
# name: "Potentiometer Value"
# update_interval: 1s
# filters:
# - lambda: return ((x * 100)) - 7.5;
# on_value:
# - servo.write:
# id: my_servo
# level: !lambda 'return x / 100.0;'
binary_sensor:
- platform: template
id: presence_template
name: "${name} Presence"
device_class: occupancy
filters:
- delayed_off: 1s
- platform: template
id: motion_template
name: "${name} Motion"
device_class: motion
filters:
- delayed_off: 1s
switch:
- platform: template
name: "${name} Bluetooth"
id: human_switch
optimistic: true
restore_mode: "RESTORE_DEFAULT_ON"
turn_on_action:
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFF, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xA4, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x02, 0x00, 0xA3, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFE, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
turn_off_action:
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFF, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xA4, 0x00, 0x00, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x02, 0x00, 0xA3, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFE, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
button:
- platform: restart
name: "Restart MCU: ${name}"
entity_category: diagnostic
on_press:
- uart.write:
id: uart_bus
data: "resetSystem 0"
- platform: template
name: "${name} Reboot Module"
id: reboot_module
entity_category: diagnostic
on_press:
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFF, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x02, 0x00, 0xA3, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFE, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
script:
- id: statepublish
then:
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFF, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
- uart.write:
id: uart_bus
data: !lambda
int minmot = id(minmotion).state;
int maxmot = id(maxmotion).state;
int minpr = id(minpresence).state;
int maxpr = id(maxpresence).state;
int unocctm = id(unocc_time).state;
uint16_t minmvalue = static_cast<uint16_t>(minmot);
uint8_t minmhighByte = static_cast<uint8_t>(minmvalue >> 8);
uint8_t minmlowByte = static_cast<uint8_t>(minmvalue & 0xFF);
uint16_t maxmvalue = static_cast<uint16_t>(maxmot);
uint8_t maxmhighByte = static_cast<uint8_t>(maxmvalue >> 8);
uint8_t maxmlowByte = static_cast<uint8_t>(maxmvalue & 0xFF);
uint16_t minpvalue = static_cast<uint16_t>(minpr);
uint8_t minphighByte = static_cast<uint8_t>(minpvalue >> 8);
uint8_t minplowByte = static_cast<uint8_t>(minpvalue & 0xFF);
uint16_t maxpvalue = static_cast<uint16_t>(maxpr);
uint8_t maxphighByte = static_cast<uint8_t>(maxpvalue >> 8);
uint8_t maxplowByte = static_cast<uint8_t>(maxpvalue & 0xFF);
uint16_t unoccvalue = static_cast<uint16_t>(unocctm * 10);
uint8_t unocchighByte = static_cast<uint8_t>(unoccvalue >> 8);
uint8_t unocclowByte = static_cast<uint8_t>(unoccvalue & 0xFF);
std::vector<uint8_t> data = {0xFD, 0xFC, 0xFB, 0xFA, 0x20, 0x00, 0x67, 0x00, 0x00, 0x00, maxmlowByte, maxmhighByte, 0x00, 0x00, 0x01, 0x00, minmlowByte, minmhighByte, 0x00, 0x00, 0x02, 0x00, maxplowByte, maxphighByte, 0x00, 0x00, 0x03, 0x00, minplowByte, minphighByte, 0x00, 0x00, 0x04, 0x00, unocclowByte, unocchighByte, 0x00, 0x00, 0x04, 0x03, 0x02, 0x01};
return data;
- uart.write: [0xFD, 0xFC, 0xFB, 0xFA, 0x04, 0x00, 0xFE, 0x00, 0x01, 0x00, 0x04, 0x03, 0x02, 0x01]
light:
- platform: neopixelbus
type: GRBW
variant: SK6812
pin: 14
num_leds: 30
name: "SK6812 LED Strip"
effects:
- pulse:
- random:
- strobe:
- flicker:
- addressable_rainbow:
- addressable_color_wipe:
- addressable_scan:
- addressable_twinkle:
- addressable_random_twinkle:
- addressable_fireworks:
- addressable_flicker:
I also realized if I wave my hand right in front of it for about 3-4 seconds it goes dark for a few seconds and registers no movement. (same with the other one I bought)
Thank you, I will retry
Anyone also tried to use the LD2411S with an ESP-01?
Not perfect because ESP-01 runs on 3.3V and the sensor on 5V.
But i have managed to read Data by using a 5V Power Source + 3.3V Voltage Regulator for the ESP and a TTL level shifter. Only Problem:
reading Values works fine, but sending commands seems not to work.
I used the native TXD (GPIO01) and RXD (GPIO03) for communication.
But setting thresholds or disable Bluetooth through the webinterface didn’t work.
Also the initial reading of the settings didn’t work. I assume that the “uart.write” commands after booting is like a setting-request-command, which of course doesn’t work either.
Anyone have some ideas?