Neoway N25 Series User manual

EVK User Guide
Issue 1.0 Date 2019-12-23

N25 EVK User Guide
Copyright
Copyright © Neoway Technology Co., Ltd
ii
Copyright © Neoway Technology Co., Ltd 2019. All rights reserved.
No part of thisdocument may bereproduced or transmitted in any form orby any means withoutprior written
consent of Neoway Technology Co., Ltd.
is the trademark of Neoway Technology Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective
holders.
Notice
This document provides guide for users to use N25.
This document is intended for system engineers (SEs), development engineers, and test engineers.
THIS GUIDE PROVIDES INSTRUCTIONS FOR CUSTOMERS TO DESIGN THEIR APPLICATIONS.
PLEASE FOLLOW THE RULES AND PARAMETERS IN THIS GUIDE TO DESIGN AND COMMISSION.
NEOWAY WILL NOT TAKE ANY RESPONSIBILITY OF BODILY HURT OR ASSET LOSS CAUSED BY
IMPROPER OPERATIONS.
THE INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE DUE TO
PRODUCT VERSION UPDATE OR OTHER REASONS.
EVERY EFFORT HAS BEEN MADE IN PREPARATION OF THIS DOCUMENT TO ENSURE ACCURACY
OF THE CONTENTS, BUT ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS
DOCUMENT DO NOT CONSTITUTE A WARRANTY OF ANY KIND, EXPRESS OR IMPLIED.
Neoway provides customers complete technical support. If you have any question, please contact your
account manager or email to the following email addresses:
[email protected]
[email protected]
Website: http://www.neoway.com

N25 EVK User Guide
Contents
Copyright © Neoway Technology Co., Ltd
iii
Contents
1 Overview....................................................................................................6
2 About N25 EVB..........................................................................................7
3 Power and Connection ..............................................................................9
3.1 Power Supply ............................................................................................................................... 9
3.2 M5X0-PWR Board........................................................................................................................ 9
4 Commissioning ........................................................................................ 11

N25 EVK User Guide
About This Document
Copyright © Neoway Technology Co., Ltd
iv
About This Document
Scope
This document is applicable to N25 series.
Audience
This document is intended for system engineers (SEs), development engineers, and test engineers.
Change History
Issue
Date
Change
Changed By
1.0
2019-06
Initial draft
Cenny
Conventions
Symbol
Indication
This warning symbol means danger. You are in a situation that could cause fatal
device damage or even bodily damage.
Means reader be careful. In this situation, you might perform an action that could
result in module or product damages.
Means note or tips for readers to use the module

N25 EVK User Guide
About This Document
Copyright © Neoway Technology Co., Ltd
v
Related Documents
Neoway_N25_Datasheet
Neoway_N25_Product_Specifications
Neoway_N25_HW_User_Guide
Neoway_N25_AT_Command_Manual

N25 EVK User Guide
Chapter 1 Overview
Copyright © Neoway Technology Co., Ltd
6
1 Overview
N25 Evaluation Board (EVB) is designed to commission and test the N25 module. It provides various
peripheral interfaces, including power supply interface, UART interface, SIM card connector, PWRKEY
button, RESET_N button, PSM_WAKE UP button, antenna interface, and HOST interface. You can
connect it to a power supply and a computer through the USB cable or serial-to-USB cable to
commission the functions of the module.
N25 Evaluation Kits (EVK) provides the following items:
⚫N25 EVB (including the N25 module)
⚫5V power adapter
⚫M5X0-PWR USB-to-Serial cable
⚫Others (antennas)

N25 EVK User Guide
Chapter 2 About N25 EVB
Copyright © Neoway Technology Co., Ltd
7
2 About N25 EVB
Figure 2-1 N25 EVB
This chapter describes the hardware layout of the N25 EVB.
In Figure 2-1, each interface and key of N25 is marked in red rectangles. Read this user guide carefully
before using N25 EVB. If necessary, please refer to the schematic diagram and PCB file of the board.
Table 2-1 lists each interface or button and their functions.

N25 EVK User Guide
Chapter 2 About N25 EVB
Copyright © Neoway Technology Co., Ltd
8
Table 2-1 Interfaces and buttons of N25 EVB
No.
Interface/Button
Description
1
5V DC power port
The LDO of the EVB transfers the input voltage to 3.8 V to
supply power for the module.
2
N25 module
/
3
UART port
Used to send data and commission the module.
Do NOT use it to supply power to the module.
4
SIM connector
/
5
PWRKEY button
Hold this button for more than 2 seconds to start the module
after supplying power to the module.
Hold this button for more than 2.5 seconds to turn off the
module.
6
RESET_N button
Hold this button for more than 1 second to reset themodule.
7
PSM_WAKE UP button
Hold this button for more than 1 second to wake up from
PSM mode.
8
MAIN_ANT antenna connector
Connect it to an antenna that covers the operating
frequencies of N25 when commissioning the EVB.
9
HOST port
Used for firmware upgrade and logs capturing.

N25 EVK User Guide
Chapter 3 Power and Connection
Copyright © Neoway Technology Co., Ltd
9
3 Power and Connection
3.1 Power Supply
N25 EVB can be supplied power by a 5V DC adapter.
Plug the output end of the adapter into the DC5V connector of the EVB.
Push the power supply switch to the ON side.
The following figure shows a 5V adapter. You can also choose another adapter that supports 5V output
voltage and 1A or larger output current.
Figure 3-1 5V power adapter
3.2 M5X0-PWR Board
The M5X0-PWR board is developed on PL2303 chipset by Neoway and used to convert USB to UART.
You can also choose another USB-to-UART cable/board based on FT2232, CP210X, and other
chipsets.

N25 EVK User Guide
Chapter 3 Power and Connection
Copyright © Neoway Technology Co., Ltd
10
Figure 3-2 M5X0-PWR Board
M5X0-PWR is connected to the N25 EVB through 4-pin cables, which have been soldered to the power
board in a sequence of red, black, yellow, and green at one end and should be inserted into the plug
of the EVB at the other end. Among the 4-pin cables:
⚫Green
Module TXD, outputs 2.85V CMOS level
⚫Yellow
Module RXD, inputs maximum 3.3 V CMOS level
⚫Black
Ground
⚫Red
VBAT, main power input, 3.6V to 4.5V, 3.8 V recommended

N25 EVK User Guide
Chapter 4 Commissioning
Copyright © Neoway Technology Co., Ltd
11
4 Commissioning
This chapter describes how to connect the module and how to implement commissioning through the
UART port.
Step 1: Install an antenna on the EVB and insert a valid SIM card.
Step 2: Use the 5V adapter to supply power, power up the N25 EVB and connect it to the computer
through the M5X0-PWR board.
Hold the PWR_KEY button for 2 seconds, and the module starts up.
Step 3: Install the PL2303 driver.
Obtain the driver package from Neoway FAE or download it from the Internet if you use the
serial-to-USB cable Neoway provided.

N25 EVK User Guide
Chapter 4 Commissioning
Copyright © Neoway Technology Co., Ltd
12
Step 4: Start a serial port tool.
The following figure shows the interface of Neo_COM tool. You should set the baud rate to
57600 or below before sending commands.
Step 5: Send an AT command to detect the baud rate.
The setting is available when value is displayed in the tool interface (indicating data can be
transmitted between the module and the tool properly).

N25 EVK User Guide
Chapter 4 Commissioning
Copyright © Neoway Technology Co., Ltd
13
Due to the low power consumption configuration, the STATUS indicator and the NET indicator are disabled by
default. Send AT+LEDMODE=1 to enable the two indicators after the module starts.
⚫The module is running when the STATUS indicator is on in green.
⚫The module is registered to the network successfully when the NET indicator is on in green.
⚫The PPP connection is activated successfully when the NET indicator flashes in green.
Step 6: Start to test the functions of N25 according to the product documentation Neoway provides.