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DEVSN2

User Guide

24G Smart mmwave sensing solution

About this document:

Scope and purpose

This application note describes the key features of ICLegend’s DEVSN2 module equipped with the 24GHz

transceiver chip S5KM312C and the MCU STM32F429 and helps the user to quickly get started with the demo

board.

1. The application note describes the hardware configuration and specifications of sensor module in detail.

2. It also provides a guide to configure the hardware and implement simple radar application with the

firmware/software developed.

Intended audience

This document serves as a primer for users who want to get started with hardware design for target position

estimation using the Frequency Modulation Continuous Wave (FMCW) radar technique at 24GHz.

The DEVSN2 from ICLegend is an easy-to-use module for the mmWave sensing device, with direct

connectivity to the PC.

Typical application:

Gesture recognition Object detect and movement discrimination

Distance/velocity/angle measurement Vital signs monitoring

Summary of content (7 pages)

PAGE 1
DEVSN2 User Guide 24G Smart mmwave sensing solution About this document: Scope and purpose This application note describes the key features of ICLegend’s DEVSN2 module equipped with the 24GHz transceiver chip S5KM312C and the MCU STM32F429 and helps the user to quickly get started with the demo board. 1. The application note describes the hardware configuration and specifications of sensor module in detail. 2.
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DEVSN2 Smart mmWave Sensor Series Us er G ui d e Table of contents 1 key Feature ....................................................................................................................................................... 3 2 Hardware Description ....................................................................................................................................... 3 2.1 Specification ..............................................................................................
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1 key Feature Detect and track position of multiple targets in outdoor environments Measure distance of multiple targets in a user-configurable range Detect motion, presence, speed and direction of movement (approaching or retreating) for human target Operational in different weather conditions Can be hidden in the end application as it detects through non-metallic materials Micro USB 5V power supply 24GHz K band highly integrated FMCW radar sensor SoC On board antenna with 6dBi gain 5-pin, 2.
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DEVSN2 Smart mmWave Sensor Series Us er G ui d e 2.2 Board picture Top Bottom 2.3 Block Diagram w w w. i c l g e n d .
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DEVSN2 Smart mmWave Sensor Series Us er G ui d e 2.4 Key component Part number type description U1 TPS7A84A Power IC U4 TPS73616DBVT Power IC U2 S5KM312C mmwave sensor IC U3 STM32F4xxV2 MCU K1 button MCU reset key D1 Green-LED Power on light D6 Green-LED Working mode light D7 Green-LED Power on light D8 Green-LED Power on light D9 Green-LED Power on light D10 Green-LED Power on light 2.5 Interface function w w w. i c l g e n d .
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DEVSN2 Smart mmWave Sensor Series Part number Description J1 USB interface to PC J2 Uart interface J3 SWIO download interface J4 Uart panel interface Us er G ui d e 2.6 Connector description Pin detail description J# PIN # Pin name J1PIN1 VCC_IN_5V J1PIN2 D- J1PIN3 D+ J1PIN4 OPEN J1PIN5 GND J1PIN6 GND J1PIN7 GND J1PIN8 GND J1PIN9 GND w w w. i c l g e n d .
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DEVSN2 Smart mmWave Sensor Series J2PIN1 VCC_IN_5V J2PIN2 USART1_TX J2PIN3 USART1_RX J2PIN4 GND J3PIN1 VDD_ARM J3PIN2 ARM_SWDIO J3PIN3 ARM_SWCLK J3PIN4 NRST_ARM J3PIN5 GND J4PIN1 VCC_LCD J4PIN2 UART4_TX J4PIN3 UART4_RX J4PIN4 GND J4PIN5 GND J4PIN6 GND Us er G ui d e 3 Version information Version Date V1.