Python version of the library for communication with the Grove Doppler Radar is based on the BGT24LTR11. It's a simple continuous wave doppler radar capable of movement detection, speed measurement and direction of movement detection. More details and resources can be found in the official product wiki.
The documentation is available here: https://grove-doppler-radar.readthedocs.io/en/latest/
While in this directory run:
pip3 install .
- The radar board communicates via UART protocol. You could use it with GPIO pins on Raspberry or Jetson board. Alternativelly you can use Arduino (for example seeeduino XIAO) as UART <-> USB bridge and connect it to your PC. You can use the provided sketch for that purpose. Yet another alternative is pre-made USB <-> UART converter.
- Run
dmesg | grep --color 'tty'twice, before and after plugging in your radar to see what name it gets in the system. - In python script open the serial connection with PySerial library.
import serial
from BGT24LTR11.BGT24LTR11 import Radar
serial_ =\
serial.Serial('/dev/ttyACM0', baudrate=115200, timeout=2)
radar = Radar(serial_)
radar.set_mode_target()
target_info = radar.get_target_info()
if target_info['state'] != 0:
print(f"Speed of the detected target is {target_info['speed']} m/s")