Ai-Thinker Rd-03E 24G Human Body Mobile Precision Ranging Positioning Module/gesture Recognition Radar Sensor Module Rd-03E – Convenient

Ai-Thinker Rd-03E-

Rd-03E is a radar module developed by Ai-Thinker. It is equipped with a silicon micro-S3KM111L chip. S3KM111L is an integrated single-chip millimeter-wave sensor SoC based on FMCW radar transceiver technology. Operates in 24GHz k band with up to 1 GHz modulation bandwidth per frequency. The module adopts FMCW waveform and advanced signal processing technology proprietary to S3 series chips. Combined with MCU’s proprietary radar signal processing and built-in intelligent presence sensing algorithm, it can realize accurate human body sensing distance measurement and gesture recognition.

Developers can display distance information and gesture information in real-time through the host computer tool. The Rd-03E module can detect and identify moving and micro-moving human bodies and report real-time distances. It can detect targets and gestures in designated areas and report results in real-time. It is widely used in various AloT scenarios. This module has the characteristics of strong real-time performance, high-ranking accuracy, large-ranging range, and flexible configuration of algorithm parameters.

Specifications

• Model: Rd-03E
• Package: DIP-5
• Size: 28.0*24.0(±0.2)mm
• Antenna: On-board antenna
• Frequency: 24G ~24.25GHz
• Operation Temperature: -40℃~ 85℃
• Storage Environment: -40℃~ 125℃, < 90%RH
• Power Supply: Support voltage 5V，power supply current ≥200mA
• Interfaces: UART
• UART Rate: Default 256000 bps

Features

• DIP package, standard 2.54mm pin
• Radar support 24 GHz ISM frequency band
• Precise indoor and outdoor human movement, micro-motion sensing and distance, gesture recognition detection
• The radar antenna supports 1 receive and 1 transmit, antenna beam is narrow, high resolution, frequency bandwidth, strong anti-interference
• Provides visual tools to support configuration of detection distance intervals and setting sensitivity by range gate
• The longest distance for sensing a moving human body is 6 m, and the longest distance for sensing a slight human body is 3.5 m
• High precision ranging：30 cm~350 cm±5 cm；350cm~600 cm±5%
• Accurate distance measurement, detection range of human body sensor module ±20°inazimuth, ±45°in elevation
• Gesture recognition detection range: azimuth angle ±20°, elevation angle ±40°
• Ultra small module size：28*24mm
• Automatically load the default configuration, plug and play
• Support UART. Intelligent parameter adjustment of the radar can be realized through the serial port, which is convenient and fast
• 5V single power supply
• Wall mount

Pin Description

Precautions for radar installation

• In the motherboard installation position, it is recommended that the following several ways:
• As far as possible ensure that the radar antenna is opposite to the test area and that the antenna around open without sunscreen.
• Ensure that the radar installation position is firm, and stable, shaking will influence the effect of the detection of the radar itself.
• Make sure there is no movement or vibration on the back of the radar. Due to the penetrating nature of radar waves, the back lobe of the antenna signal may detect moving objects on the back of the radar. A metal shield or metal backplane can be used to shield the radar back lobe to reduce the impact of objects on the back of the radar.
• The range accuracy of the target will fluctuate due to the different sizes, states, RCS, etc., And the farthest distances fluctuate slightly.
• If there are multiple radars in the 24GHz band, do not beam correctly and install them as far away as possible to avoid possible mutual interference.
• To meet the performance of the onboard antenna, do not place metal parts around the antenna, far away from high-frequency devices.
• The power input voltage range is 5V, and the power ripple is required to be controlled within 100. Users need to consider the corresponding ESD and lightning surge EMC design.

Useful Link

Datasheet

Package Included

1 x Ai-Thinker Rd-03E 24G Human Body Mobile Precision Ranging Positioning Module/gesture Recognition Radar Sensor Module Rd-03E