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    CSW2201 Module
    
            
        
    
    
    
    
    
        
    
            
    
                
            
    
            
    
                
    CSW2201 Module
    
                
    The CSW2201 module wifi ultra-long-distance 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. Reshape the boundaries of WiFi transmission.
    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
    
            
    
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    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 speed
    100~300Mbps
    1M/24Mbps
    250Kbps
    0.3~50Kbps
    20~127Kbps
    <10Mbps
    ≤40Mbps
    Operating frequency band
    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 waste
    higher
    Lower
    low
    Lower
    Lower
    Lower
    commonly
    Applicable scenario
    General family
    Office environment
    Proximity audio and control
    Smart home
    Low speed equipment
    Large scale low-speed networking
    Wide range low-speed direct network access
    Large range long-distance transmission
    Long distance high rate transmission
    
        
    
        
        
    
            
    Module introduction
    
            
    
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    The main parameters
    
            
    parameter
    index
    working frequency
    2.4GHz（ISM）
    throughput
    Adaptive, ≤ 40mbps
    High transmitting power
    20dBm
    Measured transmission distance
    3 ~ 5km (no ground to air interference, 2Mbps), 200 ~ 300m noisy ground environment in typical cities
    working temperature
    -20~70℃
    power waste
    RX：147mA@3.3V TX: 220mA @3.3V
    Receiving sensitivity
    -94dBm (Min)
    delayed
    Typical value 4ms
    Package size
    12.9mm*12.2mm*1.75mm ( L*W * H)
    encryption
    WPA2 AES
    Network topology
    Point to point, point to multipoint, mesh
    Transmission technology
    OFDM TDD LR-WiFi
    diversity
    2x2MIMO，ML，MRC
    FEC
    LDPC
    Antenna interface
    IPEX x2
    Interface
    USB2.0
    
        
    
        
        
    
            
    CSW2201 and standard wifi ground throughput comparison
    
            
    The comparison data of throughput measured with RTL8188F on open ground at the same time is as follows
    Test condition 1: As shown in the figure, 2.5dB gain antenna
    8.png
    Test condition 2: As shown in the open ground environment, one end of the antenna is 1.8m high, and the other end is 1.5m
    9.png
    Test method: Use iperf to send UDP packets to the peer to measure throughput, and use 4 channels of 2427MHz frequency
    distance
    Throughput
    RTL8188F
    CSW2201
    250 meters
    2.45Mbps
    N/A
    500 meters
    800kbps
    9.6Mbps
    1000 meters
    Disconnect
    8.78Mbps
    1200 meters
    Disconnect
    800Kbps (14 channels 5.14Mbps)