ICLEGEND MICRO DEVSN2 24G Smart mmwave Sensing Solution User Guide
- June 5, 2024
- ICLEGEND MICRO
Table of Contents
ICLEGEND MICRO DEVSN2 24G Smart wave Sensing Solution
introduction
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.
- The application note describes the hardware configuration and specifications of sensor module in detail.
- 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
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, 2.54mm interface for mcu SWIO firmware download
- One button and five LEDS for basic user interface
- 4-pin, 2.54mm interface for UART data communication
- 6-pin, 1.0mm connector to external uart panel display
- Small form factor: 4.5 x 3.3 cm
Hardware Description
Specification
DEVSN2 module parameter below：
| Operation Frequency: | 24GHz~24.25GHz |
|---|---|
| Power supply: | USB 5V |
| Modulation Technique: | FMCW |
Number of Channel:
|
1TX, 2RX
Antenna Type| PCB Antenna
Antenna Gain| 6 dBi
Crystal:| 25MHz
Board dimension|
4.5cm x 3.3cm
Work current|
300mA
Angle
|
+-40 degree
Smart mmWave Sensor Series
Board picture
Block Diagram
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
Interface function
| Part number | Description |
|---|---|
| J1 | USB interface to PC |
| J2 | Uart interface |
| J3 | SWIO download interface |
| J4 | Uart panel interface |
Connector description
Pin detail description
| J# PIN # | Pin name | Description |
|---|---|---|
| J1PIN1 | VCC_IN_5V | |
| J1PIN2 | D- | |
| J1PIN3 | D+ | |
| J1PIN4 | OPEN | |
| J1PIN5 | GND | |
| J1PIN6 | GND | |
| J1PIN7 | GND | |
| J1PIN8 | GND | |
| J1PIN9 | GND |
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|
Version information
| Version | Date | 说 明 | |
|---|---|---|---|
| V1.00 | 2020/04/28 | ||
Please take attention that changes or modification not expressly approved by
the party responsible for compliance could void the user’s authority to
operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference
that may cause undesired operation.
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