# BH1750 usermod > This usermod requires a second UART and was only tested on the ESP32 This usermod will read from a LD2410 movement/presence sensor. The movement and presence state are displayed in both the Info section of the web UI, as well as published to the `/movement` and `/stationary` MQTT topics respectively. ## Dependencies - Libraries - `ncmreynolds/ld2410@^0.1.3` - Data is published over MQTT - make sure you've enabled the MQTT sync interface. ## Compilation To enable, compile with `LD2140` in `custom_usermods` (e.g. in `platformio_override.ini`) ```ini [env:usermod_USERMOD_LD2410_esp32dev] extends = env:esp32dev custom_usermods = ${env:esp32dev.custom_usermods} LD2140 ``` ### Configuration Options The Usermod screen allows you to: - enable/disable the usermod - Configure the RX/TX pins ## Change log - 2024-06 Created by @wesleygas (https://github.com/wesleygas/)