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

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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 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

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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