MR60BHA1 60GHz mmWave Radar Module - Respiratory Heartbeat Detection - Seeedstudio 101990886

Seeedstudio module based on the radar heartbeat and breathing sensor - MR60BHA1 60 GHz . The heart rate and breath rate sensor operates on the basis of the theory of frequency modulated continuous wave (FMCW) detection, providing a completely private and safe environment, operating regardless of environmental disturbances. Thanks to the built-in algorithm and the built-in antenna, the device provides simultaneous signal emission with high accuracy. The radar works mainly by the heart's respiratory rhythm, which causes undulating movements on the surface of large muscles, chest and back, thanks to which the mmWave sensor with a frequency of 60 GHz is able to recognize their frequency, thus measuring the heart rate and the number of breaths. The module measures the number of breaths with an accuracy of 90% and the heartbeat with an accuracy of 85% . Measurement can be independent of temperature, humidity, noise, airflow, dust, light and other environmental factors. The detected area is a three-dimensional sector with a width of 80 ° horizontally and 80 ° vertically, and the measured distance is from 0.4 m to 2 m. Works with a voltage of 5 V, uses the UART serial interface for communication.

The module is based on the MR60BHA sensor, which operates at a frequency of 60 GHz and communicates via the UART serial interface. It is powered with the voltage of 5 V and is characterized by low energy consumption. On the board you can find such conclusions as:

• 5V - supply voltage
• GND - the ground of the system
• RX - receiving UART data
• TX - sending UART data
• GP1 / 2/3/4 - expansion pins
• 3.3V - output voltage 3.3V
• GND - the ground of the system
• SL - reserved pin
• SD - reserved pin

• Chip: MR60BHA
• Interface: UART
• Supply voltage: 4.6 V to 6 V (5 V recommended)
• Current consumption: 150 mA
• Detection distance (chest): 0.4m to 2m
• Accuracy of breath measurement: 90%
• Accuracy of heartbeat measurement: 85%
• Refresh time: from 1s to 30s
• Observation preparation time: 20 s
• Operating frequency: 58 GHz to 63.5 GHz
• Transmission power: 6 dBm
• Antenna gain (GANT): 4 dBi
• Horizontal beam (-3 dB): -40 ° to 40 °
• Vertical Beam (-3 dB): -40 ° to 40 °
• Working temperature: -20 ° C to 60 ° C
• Storage temperature: -40 ° C to 80 ° C
• Dimensions: 35 x 30 mm

• The website of the manufacturer: Seeedstudio 101990886
• 3D files
• Software
• Technical Documentation
• 60 GHz protocol
• Seeed mmWave series of sensors