LinkIt Smart 7688 Duo and MCS basics
-
Upload
cavedu-education -
Category
Devices & Hardware
-
view
11.460 -
download
12
Transcript of LinkIt Smart 7688 Duo and MCS basics
![Page 1: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/1.jpg)
LinkIt Smart 7688 Duo
物聯網 IoT 體驗夜懶人包載點
CAVEDU 曾吉弘151229
![Page 2: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/2.jpg)
硬體介紹
![Page 3: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/3.jpg)
原廠文件• MTK 7688官網• 7688開發者手冊 / 7688 Duo 開發手冊• MCS與7688• 7688 Knowledge base
![Page 4: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/4.jpg)
整合型應用• FPV 機器人或四旋翼• Wifi工程車 – Michael Huang
• 7688 迷你四驅車 – Makee.io
![Page 5: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/5.jpg)
開發環境比一比7688• Nodejs• Python• C/C++
7688 Duo• Nodejs• python• Arduino• C/C++
![Page 6: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/6.jpg)
Seeed 7688 Grove感測器套件包• 1 x Grove - Light Sensor• 1 x Grove - Infrared Emitter• 1 x Grove - Infrared Receiver• 1 x Grove - Encoder• 1 x Grove - Touch Sensor• 1 x Grove - OLED Display 1.12"• 1 x Grove - Temperature & Humidity Sensor• 1 x Grove - Relay• 1 x Grove - Gas Sensor (MQ2)• 1 x IR Remote Control
![Page 7: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/7.jpg)
可搭配的擴充板
![Page 8: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/8.jpg)
POWER
USB HOST
MPU / Wifi / MCU
Micro SD 卡插槽在背面WiFi 天線
![Page 9: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/9.jpg)
7688 Duo pin layout ( 檔案在懶人包)
![Page 10: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/10.jpg)
接上電源開始吧
![Page 11: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/11.jpg)
Arduino IDE setupWi-Fi setup
![Page 12: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/12.jpg)
Arduino IDE 下載1. 請下載 Arduino 1.6.4 以後的版本2. 從 board manager 安裝 7688 Duo3. 安裝 driver
• 網頁版教學請按我
![Page 13: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/13.jpg)
在 Arduino IDE 偏好設定中貼上這個連結• File / Preferences• http://download.labs.mediatek.com/
package_mtk_linkit_smart_7688_test_index.json
![Page 14: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/14.jpg)
在選單中看到 7688 ,按 Install
• Tools / Board / Boards Manager
![Page 15: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/15.jpg)
完成之後就可以看到 7688 了• 在很下面…
![Page 16: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/16.jpg)
如果板子在網路上也可以抓到
![Page 17: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/17.jpg)
安裝 driver ,請把 7688 接上電腦• 在 Windows 裝置管理員中會被歸類在 [ 其他裝置 ] 中。• linkit_smart_7688.inf
在懶人包裡面,指到這個位置即可
![Page 18: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/18.jpg)
![Page 19: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/19.jpg)
安裝完成後續操作上與一般 Arduino 開發板是類似的
![Page 20: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/20.jpg)
Wi-Fi LED 狀態
![Page 21: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/21.jpg)
AP mode 連到 7688 但不連外
![Page 22: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/22.jpg)
AP mode 連線• 連上
LinkIt_Smart_7688_XXXXXX 這個 AP , X 代表 MAC addr 後六碼
• 在瀏覽器輸入http://mylinkit.local即可進入主控台
• 預設帳號 root• 密碼自行設定
![Page 23: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/23.jpg)
![Page 24: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/24.jpg)
基礎組態設定
AP mode 預設 IP
改名字 , 由於 mDNS 的關係,請勿使用底線 _. EX: mylinkit_001.local <- 不行
![Page 25: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/25.jpg)
目前最新 FW 0.9.2
![Page 26: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/26.jpg)
Station mode• 切換到 Station mode 即可讓 7688 連到外部網路,之後只要在同一網路下的裝置都可連到它。
![Page 27: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/27.jpg)
再次登入後可看到 IP 位址換了
連上外網之後的 IP
![Page 28: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/28.jpg)
如果 http://mylinkit.local 連不上怎麼辦• 可能是 Windows 的 mDNS 問題• 如果有別台電腦的話,試著用別台電腦來看看是否可登入來找到 IP • 都不行的話,請用 IP 掃描工具來看看您的
7688 跑哪去了。 EX: Free IP Scanner)
![Page 29: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/29.jpg)
連上外網之後• 就不會再看到 7688 AP 了。• 一樣用 mylinkit.local 或 <IP> 來連上它• 先更新一遍
– $ opkg update– $ opkg install nano ( 好用的文字編輯器 )– $ opkg install fswebcam ( 拍照小程式 )
![Page 30: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/30.jpg)
更新韌體• http://
download.labs.mediatek.com/MediaTek_LinkIt_Smart_7688_Firmware,目前最新版本為 0.9.2
• 由 Web UI 點選 [UPGRADE FIRMWARE] 後選到上述檔案 [lks7688.img] 即可。
![Page 31: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/31.jpg)
如何回到 AP Mode
• 按住 Wi-Fi 按鈕 5 秒鐘即可從 station mode 回到 AP mode
![Page 32: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/32.jpg)
如何 Reset LinkIt Smart 7688
透過板子上的按鈕• 插上電源後請稍等約 2 分鐘等開機• 按著板子上的 Wifi 鈕 20 秒。• 放開後,就會開始看到橘色燈閃爍代表 reset 中• 靜置一段時間後,觀察是否有新的 LinkIt_Smart_7688_XXX
XXX 之 AP 出現,若有代表即完成。
透過 WebUI• 進去 WebUI 後,點選頁面最下方的 [Reset]• 稍後 2~3 min 即可完成。
![Page 33: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/33.jpg)
如果以上通通不行…• 請用 USB 隨身碟重燒吧… QQ
• https://www.gitbook.com/read/book/mediatek-labs/linkit-smart-7688?key=84149961
• 4.1 Update Firmware with USB Drive
![Page 34: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/34.jpg)
如何自定義 AP SSID
• 準備一個 USB 隨身碟與 micro USB 轉接線• 於 USB 根目錄下新增一個名為 [lks7688.cfg]
ASCII 文字檔,檔案內容:– wifi_ssid=THE_AP_SSID– wifi_key=THE_AP_PASSWORD
• 將 USB 隨身碟插入 7688 USB host 之後開機。– 按住 WiFi 鈕– 按下一次 MPU reset 鈕– 在 WiFi LED 亮起之後放開 WiFi 鈕
• 影片
![Page 35: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/35.jpg)
SSH 登入 7688
• Windows: Putty 或 TeraTerm• MAC / Linux: Terminal $ [email protected] 或 $ root@<7688IP>
![Page 36: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/36.jpg)
開始寫程式啦!
![Page 37: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/37.jpg)
First nodejs
• $ vim app.js 或 $ nano app.js ( 編輯 )• $ node app.js (執行 )
![Page 38: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/38.jpg)
First python
• $ vim test.py 或 $ nano test.py ( 編輯 )• $ python test.py (執行 )
![Page 39: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/39.jpg)
nodejs LED blinking
• $ vim led.js 或 $ nano led.js ( 編輯 )• $ node led.js (執行 )• Wifi 狀態 LED 即為
GPIO #44 pin• 0 = HIGH, 1 = LOW
![Page 40: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/40.jpg)
MediaTek Cloud SandBox
https://mcs.mediatek.com/resources/latest/tutorial/
7688_tutorial
![Page 41: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/41.jpg)
MediaTek Cloud Sandbox (MCS)
![Page 42: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/42.jpg)
MCS 主要功能• 雲端平台,執行程式• 例: Google App Engine、 Amazon Web
Services、Microsoft Azure• 提供網頁介面,讓你「點按滑鼠」就能建立雲端程式• 提供 API 程式存取介面• 提供網頁介面,觀看與控制各種資料
![Page 43: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/43.jpg)
MCS 其他功能• 通知( Notification),當某資料符合特定條件時,寄送電子郵件• 使用者權限( User Privilege),設定開發成員的存取修改權限• FOTA( Firmware Over The Air),版本控管,韌體經由無線傳輸自動更新
![Page 44: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/44.jpg)
目標• 到 MCS註冊帳號• 建立網頁應用程式( web application)• 透過MCS REST API 進行溝通• LinkIt 家族開發板、手機、瀏覽器
![Page 45: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/45.jpg)
範例• 從雲端控制板子內建的 LED• LED:想像成家裡的燈• 為什麼從雲端?不能直接連線嗎?
![Page 46: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/46.jpg)
![Page 47: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/47.jpg)
MCS 重要觀念• Prototype ,想像為程式樣板• Data Channel ,帶有時間資訊的資料串• Data Channel Id:對應的資料接口• Datapoint:每筆上傳的資料• Test Device ,想像為實際執行後的程式• DeviceId、 DeviceKey:用這個來鎖定裝置• 例: LED 控制器、溫濕度感測站
![Page 48: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/48.jpg)
![Page 49: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/49.jpg)
MCS Android app
• Google Play 下載
![Page 50: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/50.jpg)
MCS Dashboard(儀表板)
![Page 51: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/51.jpg)
MCS 重要選項• Console:主控台• Development:建立 Prototype、新增修改 Data
channel、查詢 Data channel Id• Test Devices:查詢 DeviceId、 DeviceKey• Resources:教學文件、參考資料• Resources:常見問題、論壇、回饋
![Page 52: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/52.jpg)
範例:控制 LED並檢視狀態程式: mcsled.js
![Page 53: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/53.jpg)
流程1. 建立 Prototype2. 依照所需功能,新增 Data channel ,記下 Data channel Id3. 建立 Test device ,記下 DeviceId 與
DeviceKey
![Page 54: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/54.jpg)
建立 Prototype• Prototype name: LED
Manager ( 或自定 )• Prototype version: 1.0
• Hardware platform:LinkIt Smart 7688 (MT7688)
• Industry:自定• Application:自定
![Page 55: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/55.jpg)
![Page 56: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/56.jpg)
Data channel 資料頻道• Controller 型:可控制• Display 型:僅能顯示
![Page 57: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/57.jpg)
目前有哪些類型?Controller• ON/OFF• Category• Integer• Float• Hex• String• GPS• GPIO• PWM• Analog• GamePad
Display• ON/OFF• Category• Integer• Float• Hex• String• GPS• GPIO• PWM
![Page 58: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/58.jpg)
ON/OFF
• 控制高低電位。 LED、繼電器等• 顯示裝置的電位高低狀態
![Page 59: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/59.jpg)
Category
• 讓系統可在 2~5 個狀態之間切換
![Page 60: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/60.jpg)
Integer / Float / Hex
• 傳整數 /浮點數 /16 進位值給裝置• 顯示裝置的數值參數。各種感測器
![Page 61: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/61.jpg)
String
• 傳送字串給裝置 / 顯示裝置回傳的字串
![Page 62: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/62.jpg)
GPS (Google Map~)
• 傳送經度、緯度、標高給裝置• 顯示裝置的 GPS座標
![Page 63: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/63.jpg)
日期區間搜尋
![Page 64: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/64.jpg)
GPIO
• 控制 /顯示裝置的 GPIO 腳位高低電位
![Page 65: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/65.jpg)
PWM
• 控制 /顯示裝置的 PWM腳位,可指定範圍
![Page 66: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/66.jpg)
Analog ( 只有 Controller)
• 以滑桿方式送出指定範圍之內的數值
![Page 67: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/67.jpg)
GamePad ( 只有 Controller)
• 這…很直覺吧 MCS教學請點我
![Page 68: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/68.jpg)
新增 Data channel (1/2)
• 請新增一個 Controller 型• Data channel name: LED_Control• Data channel Id: LED_Control重要!將用於程式碼內• Data type: ON/OFF
• 您當然可以使用別的名稱,只要一致就好
![Page 69: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/69.jpg)
![Page 70: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/70.jpg)
建立 Test device• 一個 prototype 可有多個 Test device• Device name: LED Manager ( 或自定 )
![Page 71: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/71.jpg)
Prototype List 頁面• 這樣代表 test1229 這個 prototype 有一個 test device
![Page 72: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/72.jpg)
請到 Development/Test Devices
• 找出您剛剛建立的 test device: LED Manager
![Page 73: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/73.jpg)
DeviceId / DeviceKey
• 這兩筆資料要填在所有要與 MCS 溝通的程式中
• Data channel Id 也不能錯喔:LED_Control
![Page 74: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/74.jpg)
MCS + LED 閃爍nodejs 與 python 各自要安裝模組
請打開本日資料夾的mcsled(js).txt / mcsled(py).txt複製到 7688 的 nano 裡即可
![Page 75: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/75.jpg)
MCS 新增 channel 完成設定 nodejs 與 python 環境
![Page 76: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/76.jpg)
MCSjs modules7688 需要用到 MCSjs module ,這是一個 HTTP request library 。使用 npm 即可安裝。1. 請確認您的 7688 連上網路 (station mode) 後
SSH 登入它2. 建立一個名為 app 的資料夾: $ mkdir app 3. 切換到 app 下: $ cd app 4. npm 初始化: $ npm init5. 使用 npm 來安裝模組 (需要一點時間 ): $ npm install mcsjs
![Page 77: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/77.jpg)
安裝完成• /app 下應該會有一個 node_modules 的資料夾,稍後執行的 mcsled.js 需位於同一資料夾下才能順利執行
![Page 78: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/78.jpg)
檢查 npm 版本$ npm –v 可看到目前的版本為 2.11.3
![Page 79: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/79.jpg)
mcsled.js
• 打開下載資料夾中的 mcsled(js).txt• 然後在 7688 terminal 中,進入剛剛建立的 /app 資料夾,輸入 $ nano mcsled.js
• 在 nano 中貼入內容,並修改 deviceId / deviceKey ,如下頁
![Page 80: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/80.jpg)
程式 mcsled.js修改處var myApp = mcs.register({ deviceId: 'ABC123', deviceKey: 'XYZ123', });
以上紅字換成您 test device 的資訊
![Page 81: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/81.jpg)
Python 要先安裝 request 模組• $ pip install requests
• 然後 $nano mcsled.py 來編輯檔案
![Page 82: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/82.jpg)
程式 mcsled.py修改處DEVICE_INFO = { 'device_id' : 'YOUR_DEVICE_ID',
'device_key' : 'YOUR_DEVICE_KEY' }
以上紅字換成您 test device 的資訊
![Page 83: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/83.jpg)
執行吧!• 執行時可看到 MCS test device 名稱左邊亮起綠燈,代表裝置已與 MCS 連通• 拿起 Android 裝置打開 MCS app 來玩吧
![Page 84: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/84.jpg)
執行畫面
![Page 85: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/85.jpg)
影像串流功能
![Page 86: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/86.jpg)
好棒好棒• 7688 / 7688 Duo 已經安裝了
mjpgstreamer 套件,只要下指令就可以在瀏覽器中看到即時影像喔!• 目前可用的 UVC class webcam 請點我• 例如 Logitech C170, C310 等
![Page 87: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/87.jpg)
如何確定裝置已抓到• $ cd /dev• $ ls • 看到 /video0 就是了
![Page 88: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/88.jpg)
影像串流• 在 termninal 輸入: $ mjpg_streamer -i "input_uvc.so -d
/dev/video0 -r 640x480 -f 25" -o "output_http.so -p 8080 -w /www/webcam" &
• 如果出現 v4l2 Fatal Error 或類似訊息請重新啟動 7688
![Page 89: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/89.jpg)
看到影像了嗎?• 完成後直接開啟
– http://mylinkit.local:8080/stream.html– http://<7688IP>:8080
![Page 90: LinkIt Smart 7688 Duo and MCS basics](https://reader030.fdocument.pub/reader030/viewer/2022012904/58f9aa82760da3da068b79a0/html5/thumbnails/90.jpg)
參考資料• MCS 台灣使用者討論 FB 社團• MCS github
• 機器人王國商城