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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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