1 Rd-03E Overview
Rd-03E gesture recognition control reference XenG102ST design with extremely
simplified 24 GHz radar sensor hardware Xen102 and smart algorithm firmware ST01.
The Xen102 hardware consists of an AIoT millimeter-wave radar chip S3KM111L, a
high-performance one-transmitter-one-receiver microstrip antenna, a low-cost MCU and
peripheral auxiliary circuits. Smart Algorithm Firmware ST uses FMCW waveform and
S3KM111L chip proprietary advanced signal processing technology. This reference scheme is
mainly used in intelligent bathroom scenes, which can realize accurate human body sensing
ranging and gesture recognition. Developers can display the distance information and gesture
information in real time through the host computer tool.
The radar beam of Xen102 hardware adopts wide and narrow design, and the angle range
of antenna 4 patch direction is ± 20 °, and the angle range of vertical antenna 4 patch direction
is ± 40 °. The user can adjust the antenna placement direction during installation according to
the needs of the scene. In toilet applications, it is recommended to use a horizontal narrow
beam to avoid false triggering by passing people around.
2 System description
Rd-03E is a gesture recognition control reference design based on silicon
micro-S3KM111L chips. The sensor uses FMCW waveforms, combined with the MCU's
proprietary radar signal processing and built-in intelligent presence sensing algorithms to
detect targets and gestures in a specified area and report results in real time. Based on this
reference solution, developers can quickly develop corresponding induction products. Table
2-1 shows the specification parameters of the Rd-03E.
Table 2-1 Rd-03E Specifications
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