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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

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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

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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)