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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
          
            
          
    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 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
          
            
          
    7.png

          
        
          
        
        
          
            
          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：[email protected] 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)
          
        
          
        
    
          

    

    


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