24 GHz Radar Works With Arduino and Raspberry Pi
uRAD, the radar and sensing section of Anteral S.L., develops high performance radar technology for innovative applications. The latest product is an RF board that mates with the Arduino and Raspberry Pi microcontrollers (MCU) and transforms them into completely functional microwave radars. The radar operates within the 24 GHz ISM frequency band with an EIRP below +20 dBm. Two patch antenna arrays, one for transmit and one for receive, provide a field of view of 30 x 21 degrees.
Using a powerful MCU, the RF board performs the waveform generation, signal conditioning and data processing, while the Arduino or Raspberry Pi MCU is only used for the interface between the user and radar, making for easy programming and control. The Arduino or Raspberry Pi supplies +5 V bias for the radar, which consumes only 0.85 W.
The uRAD radar can detect up to five separate targets within a 0.45 to 100 m range, with an accuracy of the maximum of ±0.04 m or 0.3 percent of the measured range. It can detect the target’s velocity from 0 to ±75 m/s with an accuracy of ±0.05 m/s. The radar also provides the signal-to-noise ratio of the detected target and the raw in-phase and quadrature components of the total received signal, enabling the user to access the detected signal and perform post-processing.
Four different modes - Doppler and three frequency modulated CW (FMCW) options - are easily programmed with the Arduino IDE or Python. uRAD provides the necessary libraries to configure, control and get results, as well as examples of use cases and a plug-and-play tutorial. Using the Windows, Mac or Linux graphical user interface enables the user to visualize the I/Q signals, FFT or other data and change the configuration in real-time.
The uRAD radar is a powerful tool for learning radar technology and applying it to numerous scenarios.