EWT611-900NW20S Product Introduction

EWT611-900NW20S is an entry-level development board that needs to be used with the long-distance wireless module E611-900NW20S that integrates long-distance image transmission and data transmission. This development board has complete functions, a transmission rate of 16Mbps, can realize 4-channel 1080p video transmission, and can also achieve transparent transmission of network port + serial port at the same time, working in the 850MHz~930MHz frequency band, and the maximum RF transmission power is 20dBm.

The E611 - 900NW20S module uses general AT commands, which makes it simple and fast to operate. The module can be widely applied in various fields such as smart wearables, home automation, home security, personal healthcare, smart home appliances, accessories and remote controls, automobiles, lighting, the industrial Internet, intelligent data collection, and intelligent control.

Features and Functions

  • Supports star - shaped networking, with a maximum of 8 sub - nodes.

  • Achieves a maximum transmission rate of 16Mbps, enabling the transmission of 4 channels of 1080p video.

  • Allows simultaneous transparent transmission through the network port and the serial port.

  • Integrates image and data transmission.

  • Enables easy switching between master and slave modes and one - click pairing, which is simple to use.

  • In an ideal situation, the maximum transmission distance can reach 1km.

  • Supports relay networking function.

  • Is equipped with AT commands for convenient module parameter setting.

  • Operates in the frequency band of 850MHz - 930MHz, with the default frequency band being 915MHz.

Application Scenarios

  • Smart home and industrial sensors

  • Smart wearables

  • Home security

  • Smart home appliances

  • Accessories and remote controls

  • Wireless sensing

  • Intelligent control

Usage Examples

The following is a test demonstration using our baseboard

Modules 1 right 1 Connect serial port transparently

1. prepare two E611 Module, install the antenna
2. Typec connect pc computer.
3. press and hold both modules at the same time con Button, wait2sAfter releasing, you can see
the connection lights and rssi The signal indicator light is always on.
4. Open XCOM Serial port assistant, corresponding to opening the serial port (pay attention to theserial port parameters 115200, 8N1）
5. The serial port can send data directly. As shown in the following figure

serial port data

Modules 1 right1 Connect as a bridge to connect two pc

1. prepare two E611Module, install the antenna
2. Ethernet connect ion pc
3. After the module is powered on after correct connection, you can seephy0 The indicator light is always on, and an unknown network appears in the computer network interface

Connect as a bridge to connect two pc


4. both sides pc Manually modify the corresponding static ip, pay attention to the devices on
both sides ip The two devices need to be in the same network segment and firewall and other
software must be turned off to avoid communication failure.
5. with the help of the network debugging assistant, apc Start TCP server, as shown below, note ip For the corresponding modified Ethernet ip

TCP server


6. another device connected to the corresponding ip port, you can see that it can be connected
successfully

corresponding ip

7.data testing,50ms Packet interval per pack 1000Bytes, as shown below server client Data from
both sides


client Data-1

client Data-2

Modules 1 Multi-star networking

The network topology is as follows:

Multi-star networking

The actual networking type of this product is a star network, which consists of a host device and several slave nodes. A single host node can support8For a specific networking demonstration example, please refer to the official website to download: https://www.cdebyte.com/products/EWT611 - 900NW20S/4#Downloads