Sendspin firmware for Satellite1 devices with the HLK-LD2450 radar sensor.
Install Firmware
Connect your Satellite1 via USB and click the button below to install.
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About the HLK-LD2450
The HLK-LD2450 is an advanced 24GHz mmWave radar sensor with multi-target tracking. It can track up to 3 targets simultaneously and reports precise X/Y coordinates for each.
Detection Range
Up to 6 meters
Frequency
24GHz FMCW
Multi-Target
Up to 3 targets
Output
X/Y coordinates
Advanced features
Zone-based detection — define custom detection zones
Multi-target tracking with individual coordinates
Speed and angle detection per target
Configurable sensitivity and detection areas
Installation steps
Connect your Satellite1 to your computer via USB
Click the "Install Satellite1 LD2450" button above
Select the correct serial port when prompted
Wait for the installation to complete
Enter your home Wi-Fi credentials when the installer prompts for them
Add the device to Home Assistant
Note: first-time installation erases the device. Existing ESPHome devices can be updated via OTA from Home Assistant.