Interface an LD2410B Sensor with USB-UART Converter

Introduction:

In this tutorial, we will explore the process of interfacing the LD2410B sensor with a USB-UART converter, enabling communication between the sensor and a computer or smartphone.

The LD2410B sensor is a versatile and powerful device used in various applications, including distance measurement, obstacle detection, and motion tracking. We will cover two methods to achieve this: using the LD2410 Tool app on Windows and the HLKRadarTool app on a phone.

Video Demonstration:

Hardware Requirements:

1. LD2410B Sensor 

2. USB-UART Converter Module

3. Jumper Wires

4. Windows PC (LD2410 Tool app) or Smartphone (HLKRadarTool app)

Method 1: Interfacing with LD2410 Tool App for Windows

Step 1: Connect the Hardware

- Connect the TX pin of the LD2410B sensor to the RX pin of the USB-UART converter.

- Connect the RX pin of the LD2410B sensor to the TX pin of the USB-UART converter.

- Ensure proper ground connections between the sensor and converter.

Step 2: Install LD2410 Tool App

- Download and install the LD2410 Tool app for Windows on your PC.

- Launch the application after installation.

Step 3: Configure the App

- Select the appropriate COM port for the USB-UART converter in the LD2410 Tool app.

- Set the baud rate and other communication parameters at 256000

Step 4: Establish Communication

- Click on the "Connect" button in the LD2410 Tool app to establish communication with the LD2410B sensor.

Method 2: Interfacing with HLKRadarTool App for Phone

Step 1: Connect the Hardware

- Repeat Step 1 from Method 1 to connect the LD2410B sensor with the USB-UART converter.

Step 2: Download HLKRadarTool App

- Go to the app store on your smartphone and download the HLKRadarTool app.

- For Android you can click on this link https://www.pgyer.com/Lq8p

- Install and launch the application.

Step 3: Configure the App

- Make sure your Bluetooth is open

- Open the HLKRadarTool app and select the appropriate communication settings, such as baud rate and data format.

Step 4: Start Communication

- Tap on the "Connect" or "Start" button within the HLKRadarTool app to initiate communication with the LD2410B sensor.

- For the result red ball means there is a moving target; purple means there is a stationary target; green means no one.