T-Radar get it now
Overview
LILYGO T-Radar V1.0 is a high-precision proximity detection expansion board based on the 60 GHz A121 radar chip using Pulsed Coherent Radar (PCR) technology. Enables distance measurement up to 20 meters with millimeter-level absolute accuracy and micrometer-level relative accuracy. Suitable for motion sensing, material identification, object tracking, and vital sign detection (breathing, heart rate). Compatible with LILYGO mainboards via pin headers.
Quick Start
Example Support
| Example | PlatformIO/Arduino | ESP-IDF | Description |
|---|
Installation
- Connect T-Radar to a compatible LILYGO mainboard (e.g., T3, T-Beam) via pin headers
- Ensure the mainboard provides sufficient I/O and power (3.3 V / 5 V)
- Download and install the radar driver library
- Initialize via I²C or SPI interface
- Configure measurement mode (distance, motion, vital signs)
- Read radar data and apply filtering as needed
Development Platforms
Video
Key Features
- A121 60 GHz Pulsed Coherent Radar (PCR)
- Maximum measurement range: 20 meters
- Absolute accuracy: millimeter level; relative accuracy: micrometer level
- Supports: motion detection, material classification, object tracking, breathing, heart rate
- Configurable I²C / SPI communication interface
- Plug-and-play expansion board, compatible with major LILYGO mainboards
Product Parameters
| Feature | Specification |
|---|---|
| Radar Chip | A121 60 GHz PCR |
| Maximum Range | 20 meters |
| Absolute Accuracy | Millimeter level (mm) |
| Relative Accuracy | Micrometer level (µm) |
| Communication | I²C / SPI (jumper configurable) |
| Power Supply | 3.3 V / 5 V |
Pin Diagram
Dimension Diagram
Schematic
Datasheet
Software Development
Dependent Libraries
FAQ
Q. Can T-Radar be used outdoors? A. Yes. 60 GHz radar is less affected by weather, though heavy rain or snow may cause slight signal attenuation.
Q. Does it support multi-target detection? A. The current version is designed for single-target high-precision ranging. Multi-target identification requires additional algorithm processing.
Q. What is the maximum refresh rate? A. Depends on the host MCU and interface. Typically supports data updates above 100 Hz.
Q. Can it detect objects behind glass or walls? A. Radar can penetrate thin non-metallic materials; metallic materials block the signal completely.
Version History
| Version | Release Date | Update Description |
|---|---|---|
| T-Radar V1.0 | — | Initial version |