LinkIt ONE 是聯發科 MTK 與國際 Maker 大廠 SeeedStudio 合作開發的平台,支援眾多 Arduino Shields 與 SeeedStudio 推廣的 Grove 連接介面。不過由於 LinkIt 本身 SoC 晶片對於 I/O 驅動電流較微弱,部分 Shields 或是 Grove Modules 可能會有相容性問題,而 LinkIt ONE 本身的 Arduino library 與標準 Arduino 也可能有些許的相容性差異 (Arduino 自身家族也有這個問題。) 所以在使用時預期可能會有不相容的情況,請參考 SeeedStudio 原廠整理之 相容性列表。因為目前台灣的模組庫存部分數量不足,若有需要請直接與我們 聯繫報價。
原廠連結:https://labs.mediatek.com/site/znch/developer_tools/mediatek_linkit/whatis_linkit/index.gsp
MediaTek LinkIt™ ONE讓您為可穿戴與物聯網(IoT)設備創造量身打造的原型器,使用和Arduino類似的硬件和API。
該開發平台是基於現今最小的可穿戴系統級芯片組(SoC),聯發科技的Aster (MT2502)。此SoC也能夠和聯發科技節能的Wi-Fi與GNSS芯片組一同運作和與其他智能裝置或雲應用連接。
讓可穿戴與物聯網的原型機和應用快速與簡單創建,該開發平台提供了:
由Aster (MT2502)與配套GNSS與Wi-Fi芯片組所運行的LinkIt ONE開發平台 是以RTOS為核心。核心運行著各種驅動程序、中間件與協議棧,並顯露了芯片組的功能架構。Run-time運行環境提供LinkIt ONE API(針對Arduino) 所需要的Arduino移植層服務讓。而LinkIt ONE SDK 則提供開發Arduino 草圖(sketches) 的API 。
LinkIt ONE開發平台的硬件核心為聯發科Aster (MT2502)。該芯片組也與我們的Wi-Fi和GNSS芯片兼容,提供給高性能、低功耗的可穿戴與物聯網裝置。
Aster的緊湊系統級芯片組(SoC)設計,越少的芯片數量等同於越小的裝置大小,能降低成本也省去兼容性測試的必要。
選用Aster的裝置開發商與創客社區能更簡單、低廉的創建理想的功能性穿戴式裝置。
資料來源:https://www.seeedstudio.com/LinkIt-ONE-p-2017.html
Features
All-in-one 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 |
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Rich-Compatibility Pin-out similar to Arduino boards, including Digital I/O, Analog I/O, PWM, I2C, SPI, UART and power supply, compatible with Grove 4-pin interface |
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Strong Extensibility Provides various interfaces for connecting to most sensors, peripherals, Groves, and other widgets |
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Easy Prototyping 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 productization and agile manufacturing service. |
What is LinkIt ONE
The LinkIt ONE development board is an open source, high-performance board for prototyping Wearables and IoT devices. It's 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 for you to connect to various sensors, peripherals, and Arduino shields.
LinkIt ONE is a co-design product by Seeed Studio and MediaTek. It brings together the parties' knowledge in open hardware and industry-leading reference designs for Wearables and IoT devices to create this powerful development board.
LinkIt ONE development is fully supported on the MediaTek Labs site: check out the LinkIt sectionandregister here to download the SDK, participate in the Forums, and more.
Schematic Diagram
LinkIt ONE is built to offer similar pin-out to the popular Arduino boards ,4-pin grove interfaces and peripheral interfaces, making it easy to add sensors, peripherals, and Arduino Shields to LinkIt ONE and create fully featured wearable and IoT device prototypes. Here you can reach some widgets to have a comprehensive understanding of this platform, and we will develop more one after another.
Package
LinkIt ONE is paicked in the protective box, along with a quick start guide, pin-out diagram relevant user mannual and accessories. The box is designed to protect the LinkIt ONE from can prevent the shocks and impact. And for retailer which you may hang on the box in your a physical store, the box may include with a pendant from which it can be hung for display.
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Box |
LinkIt ONE Board | Antenna | Polymer li-ion Battery |
Dimensions | 108mm x 75mm x 33mm |
Weight | G.W 102.5g |
Battery | Lithium Cells/Batteries packed with equipment UN3481 -PI966 |
Microcontroller | |
Chipset | MT2502A (Aster) |
Core | ARM7 EJ-S™ |
Clock Speed | 260MHz |
PCB Size | |
Dimensions | 3.3 x 2.1 inches |
Memory | |
Flash | 16MB |
RAM | 4MB |
Power | |
Battery Jack | 3.7~4.2V Li-battery |
DC Current Per I/O Pin | 0.3~3mA |
Digital IO Pins | |
Pin Count | 16 (D0~D13, SDA, SCL) |
Voltage | 3.3v |
Analog Input Pins | |
Pin Count | 3 (A0, A1, A2) |
Voltage | 0~5V |
PWM Output Pins | |
Pin Count | 2 (D3 and D9) |
Voltage | 3.3v |
Max Resolution | 13bit |
Frequency (Resolution) | 1.6KHz (13bit) / 50.8KHz (8bit) / 800KHz (4bit)/ (customizable) |
External Interrupts | |
Pin Count | 2 (D2 and D3) |
I2C (master only) | |
Set Count | 1 (SDA, SCL) |
Speed | 100Kbps, 400Kbps, 3.4Mbps |
SPI (master only) | |
Set Count | 1 (MOSI, MISO, SCK, SS) |
Speed | 104Kbps~26Mbps |
UART | |
Set Count | 1 (TX/RX) |
Voltage | 3.3v |
UART on USB | |
Set Count | 1 |
Communications | |
GSM | 850/900/1800/1900MHz |
GPRS | Class 12 |
Bluetooth | BR/EDR/BLE (Dual Mode) |
Wi-Fi (MT5931) | 802.11 b/g/n |
Positioning | |
GPS (MT3332) | GPS/GLONASS/BEIDOU |
User Storage | |
Flash | 10MB |
SD Card | Up to 32GB (Class 10) |
Executable Size | |
RAM (Code+RO+RW+ZI+Heap) | 2MB |
LinkIt One | 1 |
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 (M
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