DreamHAT+ Enables 60 GHz Radar Sensing on Raspberry Pi 4B and 5

Dream Boards has released the DreamHAT+ Radar, a compact add-on board that brings high-precision 60 GHz mm-wave radar capabilities to Raspberry Pi 4B and 5. Built around Infineon’s BGT60TR13C radar chip, the DreamHAT+ is designed for developers and researchers working on gesture recognition, presence detection, indoor tracking, and privacy-focused sensing, all without relying on cameras or microphones.

The radar operates between 58 and 63.5 GHz using frequency modulated continuous wave (FMCW) technology. It features one transmitting and three receiving antennas on a single chip, enabling directional sensing and motion tracking.

With a detection range from 10 centimeters to 15 meters and a resolution of 3 centimeters, the module supports applications in robotics, smart home automation, and signal processing. Its horizontal and vertical fields of view are 40 and 65 degrees, respectively.

The onboard analogue-to-digital converter provides 12-bit resolution with a 4 MSps sampling rate across three channels, while SPI enables up to 50 MHz data communication with the host Pi.