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  • CSW220A Module

    CSW220A Module

    The CSW220A module long-distance wifi module focuses on the Internet of Things technology. Its innovative LR-WiFi technology (Long Range WiFi) solves the problem of low-cost, high-performance, high-speed, and long-distance wireless communication, reshaping the Internet of Things WiFi transmission boundary.

    LR-WiFi: The main technology comes from WiFi, which not only has the characteristics of WiFi easy to use, mature, and can be networked, but also solves the missing problem in WiFi: distance.

    LR-WiFi has a hundred times that of LoRa, zigbee and other narrow-band communications and a slightly lower rate than WiFi. It can also be compatible with WiFi through an external wireless network card. It can be widely used in wireless cameras, drones, smart buildings, smart agriculture, and wisdom. Fields such as factories, robots, stage and musical instruments.

    Comparison of LR-WIFI and other wireless methods

    2.png

    Comparison of LR-WIFI and other wireless methods

    parameter

    Traditional WIFI

    Bluetooth

    Zigbee

    LoRa WAN

    NB-IOT

    802.11ah (Halow)

    LR-WiFI

    Transmission distance

    100m~400m

    15m~60m

    50m~300m

    300m~27Km

    <20Km

    <10Km

    ≤15Km

    Transmission rate

    100~300Mbps

    1M/24Mbps

    250Kbps

    0.3~50Kbps

    20~127Kbps

    <10Mbps

    ≤40Mbps

    Working frequency

    2.4G /5GHz

    2.4GHz

    2.4G/Sub1GHz

    Sub 1GHz

    Licensed

    Sub 1GHz

    2.3/2.4GHz

    Node access capability

    32

    8

    6.5W

    6.5W

    About 20W

    8000

    32

    Network topology

    Star/Relays/Mesh

     Mesh

    Mesh

    Star

    Star

    Star

    Star/Mesh

    Power consumption

    Higher

    Lower

    Low

    Lower

    Lower

    Lower

    generally

    Applicable scene

    Average family

    Office environment

    Close-up audio and control

    Smart home

    Low-speed equipment

    Large-scale low-speed networking

    Large-scale low-speed direct network access

    Large-scale long-distance transmission

    Long-distance high-speed transmission

    Module introduction

    3.png

    The main parameters

    parameter

    index

    working frequency

    2.3/2.4GHz

    throughput

    Adaptive, ≤ 50Mbps

    High transmitting power

    20dBm

    Long transmission distance

    8 ~ 9km (no ground to air interference, 2Mbps), 300 ~ 500m in the noisy ground environment in typical cities

    working temperature

    -20~80℃

    working voltage

    5V

    power waste

    0.5W (typical) 1.5W (large)

    Receiving sensitivity

    -94dBm (Min)

    delayed

    Typical value 4ms

    Package size

    34mm*26mm*4mm ( L*W * H)

    encryption

    WPA2 AES

    Network topology

    Point to point, point to multipoint, mesh

    Transmission technology

    OFDM TDD LR-WiFi

    Functional application

    Integrated serial port transparent transmission, audio function

    FEC

    LDPC

    Antenna interface

    IPEX x2

    Interface

    MIC_IN UARTx2 USB_OTG HEADPHONE_Out GPIO SDIO 10 / 100M Ethernet

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