Seeed LinkIt ONE User manual

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LinkIt ONE
Version：1.0
Release date：10/27/2015
Bazaar: http://www.seeedstudio.com/depot/LinkIt-ONE-p-2017.html
Wiki: http://www.seeedstudio.com/wiki/LinkIt_ONE

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Document Revision History
Revision
Date
Author
Description
1.0
Sep 21, 2015
Victor.He
Create file

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Contents
Document Revision History ·································································································· 2
1. Introduction··················································································································· 5
2. Features ························································································································· 6
3. Specifications················································································································· 7
4. Hardware Overview······································································································· 8
4.1 Configuration Switches······································································································8
5. Getting started··············································································································· 9
5.1 Procedure Overview··········································································································9
5.2 Installing Arduino IDE········································································································9
5.3 Installing Mediatek LinkIt ONE SDK···················································································9
5.4 Installing Drivers················································································································9
5.5 Updating Firmware··········································································································11
5.6 Uploading Code (Blinky)··································································································12
5.7 Connecting Antennae······································································································12
5.8 Inserting SIM Card and SD Card ······················································································13
5.9 Exploring LinkIt ONE SDK Examples ················································································14
6. Compatible Groves and Shields for LinkIt ONE ··························································· 15
7. Tutorial of Sidekick Basic Kit for LinkIt ONE·································································16
8. Related Projects··········································································································· 17
8.1 Make an Instructables Indicator······················································································17
8.2 LinkIt ONE IoT Demo ·······································································································18
8.3 Other projects about LinkIt ONE ·····················································································18
9. Resources····················································································································· 19

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Disclaimer
For physical injuries and possessions loss caused by those reasons which are not related to product quality, such as
operating without following manual guide, natural disasters or force majeure, we take no responsibility for that.
Under the supervision of Seeed Technology Inc., this manual has been compiled and published which covered the latest
product description and specification. The content of this manual is subject to change without notice.
Copyright
The design of this product (including software) and its accessories is under tutelage of laws. Any action to violate relevant
right of our product will be penalized through law. Please consciously observe relevant local laws in the use of this product.

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1. Introduction
The LinkIt ONE development platform is an open source, high performance board for prototyping Wearables and IoT
devices. It is based on the world's leading SoC for Wearables, MediaTek Aster (MT2502) combined with high performance
Wi-Fi (MT5931) and GPS (MT3332) chipsets to provide you with access to all the features of MediaTek LinkIt. It also
provides similar pin-out features to Arduino boards, making it easy to connect various sensors, peripherals, and Arduino
shields.
LinkIt One is an all-in-one prototyping board for IoT/wearables devices. Integrating GSM, GPRS, Wi-Fi, GPS, Bluetooth
features into a basic Arduino form factor.
LinkIt ONE is a co-design product by Seeed Studio and MediaTek. It brings together both parties' technology in open
hardware and industrial leading reference designs for Wearables and IoT devices to create a powerful development board.
Notes: LinkIt ONE board comes with a lot of features and its SDK (Software Development Kit) is quite comprehensive. Read
this document thoroughly once before using the board. Being a co-design product basic level Technical Support for
hardware is provided at Seeedstudio LinkIt One Forum. Advanced Technical support is available at MediaTek LinkIt One
Forums. These forums have a good number of FAQs about this board. Please search solutions for your requirements/issues
first before posting questions for saving your time.

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2. Features
Includes ARM7 EJ-S™, GSM, GPRS, Wi-Fi, Bluetooth BR/EDR/BLE, GPS, Audio codec, and SD card connector on a single
development board.
Pin-out similar to Arduino boards, including Digital I/O, Analog I/O, PWM, I2C, SPI, UART and power supply,
compatible with Arduino.
Provides various interfaces for connecting to most sensors, peripherals, Groves, and other widgets.
You are what you wear. Using LinkIt ONE together with MediaTek LinkIt SDK (for Arduino) you will be able to easily
turn your ideas into practical prototypes and make them a reality with the Seeed agile manufacturing and promote
service.

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3. Specifications
Parameter
Value
Chipset
MT2502A (Aster, ARM7 EJ-S (TM) )
Clock Speed
260MHz
Dimensions
3.3x2.1 inches
Flash
16MB
RAM
4MB
DC Current Per I/O Pin
1mA
Analog Pins
3
Digital Output
3.3V
Analog Input
5V
UART
Software based(Serial) ,also known as USB Modem Port and Hardware Serial(Serial1, D0&D1)
SD Card
Up to 32GB(Class 10)
Positioning
GPS(MT3332)
GSM
850/900/1800/1900 MHz
GPRS
Class 12
Wi-Fi
802.11 b/g/n
Bluetooth
BR/EDR/BLE(Dual Mode)

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4. Hardware Overview
4.1 Configuration Switches
There are 3 slide switches on LinkIt ONE which are used to configure the function/working mode:
Switch No.
Functionality
Position 1 - Functionality
Position 2 - Functionality
1
Program Mode
MS：In this position, when connected to PC,
LinkIt One board will be shown as 10MB USB
drive. The program will not execute in this
mode. Any file that is copied to this drive can
be read via the code.
UART：This position is used to set
the board to program mode.
Firmware can be uploaded in this
mode.
2
Power
BAT：Board powered by Li-ion Battery. To
charge battery, set the switch to this position
and connect the board to PC.
USB：Board powered by USB port.
Set the switch to this position when
there is no battery connected to
program the board.
3
SD/SPI
SPI：This position allows access of external
SPI pins (D10 - D13)
SD：This position allows the code to
access SD card. This mode also
disables access of SPI pins (D10-D13).

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5. Getting started
5.1 Procedure Overview
No.
Step
Read more
1
Install Arduino IDE 1.5.7 Beta (Windows or MAC OS X version)
here
2
Register on MediaTek Labs.
3
Download Linkit Developer's Guide and read.
4
Install LinkIt SDK for Arduino IDE (Windows or MAC OS X).
here
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Install LinkIt ONE drivers.
here
6
Update the on-board firmware version.
here
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Open Arduino IDE, Select LinkIt ONE board and start coding.
here
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Connect GSM, GPS and Wi-Fi/BT antennae to LinkIt One board
here
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Insert SIM and Micro SD Card
here
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Explore examples and Happy making!
5.2 Installing Arduino IDE
Download latest Arduino IDE. For more advanced topics, follow MediaTekTM instructions
5.3 Installing Mediatek LinkIt ONE SDK
Download LinkIt SDK for Arduino. At the time of writing this guide, v1.1.11 Windows SDK (Beta) was used.
Read the video guide for Windows OS and MAC OS X platforms here.
Extract the downloaded files to Arduino IDE folder.
Double-Click the .EXE file and install.
With the installation of LinkIt ONE SDK, Arduino IDE works a LinkIt ONE IDE.
5.4 Installing Drivers
Disable Driver Signature Enforcement if you are using Windows 8/8.1 OS. Read instructions.
Put the MS/UART slide switch to UART position and connect LinkIt ONE to PC.
Open Device Manager, the following COM ports will be displayed.

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Install driver from ..\LinkIt_ONE_IDE\drivers\mtk folder.
After installing drivers, Device Manger should display the following two ports:
MTK USB Debug Port used for uploading code
MTK USB Modem Port used for printing message, such as Serial.println()