Silex technology SX-NEWAH-EVK Guide de l'utilisateur

SX-NEWAH-EVK Start-UP Guide

silex Technology, Inc.

Introduction
Outline
Feature
Notifications
Specifications
Before You Begin
EVK Composition
Environment Setup
Device Connection
Wireless Communication Check
Troubleshooting
Appendix
Revision History
 

Introduction

・

1. Outline

SX-NEWAH is a wireless LAN module that complies with the 915MHz band standard IEEE

802.11ah. Transmission of over 1 Mbps of 1km wireless distance (*).

By connecting this product to Raspberry Pi, the functions of SX-NEWAH can be used.

(*) The wireless distance and throughput vary depending on your environment.

2. Feature

✓IEEE 802.11ah support

✓NEWRACOM’ NRC7292 chipset

✓1/2/4MHz bandwidth

✓MCS0-7, MCS10 transfer rate (MCS10 can be used only when the bandwidth is 1MHz.)

✓WPA3(SAE/OWE)

✓The wireless setting can be retrieved and configured using a special utility.

✓MHF1 connector installed for external antennas

✓SPI host interface support

3. Notifications

✓This equipment uses 915MHz band radio.

✓As this product communicates by radio wave, it is strongly recommended to use

some security system to prevent unexpected information leakage to others.

✓This product will effect to some other device or be affected by the some other device

using the same frequency band. Please investigate the environment to use this

product beforehand.

✓Disassembling or modifying the radio module leads to punishment based on radio

law.

✓This equipment t has the exposed connectors or some devices. Please be careful for

electro static, condensing, and other dusts.

✓In the case using the other wireless devices using same frequency band around this

product, please take care below.(See IEEE802.11-2012)

✓The module is possibly interfered when strong signal is input. The other wireless

system should be enough far from this product.

✓Input level from the opponent device must be -10dBm or less with including antenna

gain.

✓Firmware of this product shall be updated without the advance notice.

4. Specifications

Evaluation KIT

Model number

SX-NEWAH-EVK

Wireless module

SX-NEWAH

Operating voltage

5.0V

Dimensions

90mm×80mm×25mm

Wireless LAN Module

Chipset

NRC7292

Wireless LAN standard

IEEE 802.11ah

Wireless mode

AP, STA

Frequency (*1)

1MHz

903.5, 904.5, 905.5, 906.5, 907.5, 908.5, 909.5, 910.5, 911.5,

912.5, 913.5, 914.5, 915.5, 916.5, 917.5, 918.5, 919.5, 920.5,

921.5, 922.5, 923.5, 924.5, 925.5(*2), 926.5(*2)

2MHz

905, 907, 909, 911, 913, 915, 917, 919, 921, 923, 925

4Mhz

910, 914, 918, 922

Modulation

OFDM

Transmission rate (MCS)

MCS0-7, MCS10 (MCS10 can be used only when the bandwidth is 1MHz.)

Transmission rate (Kbps)

150Kbps - 15Mbps

Encryption method

WPA2-PSK, WPA3 (SAE/OWE)

Antenna connector

MHF1 connector x 1

Host interface

SPI

Operating voltage

VDD33: 3.3V VDDFEM: 3.3V or 4.0V

Consumption current

(peak value)

Transmission: VDD33 98mA, VDDFEM 570mA

Reception: VDD33 55mA, VDDFEM 28mA

Operating conditions

Temperature: -40℃to 85℃

Humidity: 15 to 95%RH (no condensing)

Storage conditions

Temperature: -40℃to 85℃

Humidity: 15 to 95%RH (no condensing)

Dimensions

20.5mm×27.0mm×3.1mm

Weight

3.0g

Connector type

68 pin Surface mount

Certification standard

US(FCC), Canada (IC)

*1 This product can be used in US and Canada only.

*2 When AP mode, STA can connect to AP about 60 seconds after AP starts.

5. Before You Begin

□SX-NEWAH-EVK (SX-NEWAH (IEEE 802.11ah wireless module) is installed）

□Antenna for SX-NEWAH

□AC adaptor for SX-NEWAH-EVK

□Raspberry Pi 3 Model B (hereinafter, “Raspberry Pi”)

□AC adaptor for Raspberry Pi (5V/3A or higher)

- Recommended for the radio to operate properly in accordance to the module

specification

□Micro SD card (8GB or higher・UHS-I / Class 10 or higher)

The following items are necessary to use SX-NEWAH-EVK:

□PC (Windows 10 or higher is recommended)

(Optional. Please prepare as necessary.)

□Ethernet cable

□HDMI compatible monitor

□HDMI cable

□USB keyboard／mouse

□micro SD card reader/writer

□Terminal software (e.g. Tera Term, etc.)

➢In this document, Tera Term (Version 4.102) is used.

□Software to write an SD card image (e.g. Win32 Disk Imager, etc.)

➢In this document, Win32 Disk Imager (Version 1.0) is used.

(Refer to 7.2.2 for how to write an image using this software.)

* To use Raspberry Pi with other devices (e.g. sensor, etc.), prepare the necessary items for

it.

* This product uses the 920MHz. Recommend that prepare two of EVK in total for AP and

STA mode.

6. EVK Composition

⚫Outline

7. Environment Setup

⚫Before turning on SX-NEWAH-EVK, turn on/off the SW1 according to the below image.

(1) Connect SX-NEWAH-EVK and Raspberry Pi according to the image below.

(2) Connect the antenna of SX-NEWAH to the SMA connector.

(3) Connect the AC adaptor of SX-NEWAH-EVK to the power connector.

(4) Connect the AC adaptor of Raspberry Pi.

Before turning on SX-NEWAH-EVK, prepare a micro SD card to which an OS image is written.

To use SX-NEWAH-EVK via SSH, install the terminal software on your PC.

In this document, Tera Term is used as an example.

Following explains how to write an image using Win32 Disk Imager to the Windows

environment.

Download Win32 Disk Imager from the URL below.

https://sourceforge.net/projects/win32diskimager/

Execute the installer you have downloaded, and install it according to the instructions.

When the installation is completed, insert the micro SD card into your PC (when your PC does

not support direct connection of a micro SD card, use a micro SD card reader).

(1) When the Win32 Disk Imager is started, the below window will appear.

Click the pull-down menu to select the drive to write the image into.

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