08利用Blynk APP控制

• • • /*************************************************************

    • *

    • This example shows how to use BBC Micro:Bit

    • to connect your project to Blynk.

    • Note: This requires nRF5 support package:

    • https://github.com/sandeepmistry/arduino-nRF5

    • And BLEPeripheral library

    • from http://librarymanager/all#BLEPeripheral

    • or https://github.com/sandeepmistry/arduino-BLEPeripheral

    • 1. Select: Tools -> SoftDevice -> S110

    • 2. Select: Tools -> Programmer -> CMSIS-DAP

    • 3. Select: Tools -> nRF5 Flash SoftDevice

    • 4. Read and Accept License

    • 5. Verify and Upload Sketch

    • NOTE: BLE support is in beta!

    • *************************************************************/

    • #define BLYNK_USE_DIRECT_CONNECT

    • #define BLYNK_PRINT Serial

    • #include <BlynkSimpleSerialBLE.h>

    • #include <BLEPeripheral.h>

    • #include "BLESerial.h"

    • // You should get Auth Token in the Blynk App.

    • // Go to the Project Settings (nut icon).

    • char auth[] = "a17a842931d740e4b01ac11fddb81d88"; //這部分等一下到MAIL信箱去收屬於自己的認證碼

    • // Create ble serial instance, parameters are ignored for MicroBit

    • BLESerial SerialBLE(0, 0, 0);

    • // Configure Pin

    • #define PIN_BUTTON_A 5

    • #define LED_ROW2 27

    • #define LED_COL3 10

    • BLYNK_WRITE(V0) // 建立 V0 的虛擬腳位

    • {

    • pinMode(LED_ROW2, OUTPUT);

    • pinMode(LED_COL3, OUTPUT);

    • if (param.asInt() == 1) /* When button widget is "ON" */ //按鈕按下時，中間的LED燈會亮

    • {

    • digitalWrite(LED_ROW2, 1);

    • digitalWrite(LED_COL3, 0);

    • }

    • else

    • {

    • digitalWrite(LED_ROW2, 0);

    • digitalWrite(LED_COL3, 0);

    • }

    • }

    • void setup()

    • {

    • Serial.begin(9600);

    • SerialBLE.setLocalName("Blynk");

    • SerialBLE.setDeviceName("Blynk");

    • SerialBLE.setAppearance(0x0080);

    • SerialBLE.begin();

    • Blynk.begin(SerialBLE, auth);

    • Serial.println("Waiting for connections...");

    • pinMode(PIN_BUTTON_A, INPUT_PULLUP);

    • }

    • void loop()

    • {

    • SerialBLE.poll();

    • Serial.print("Button A Status: ");

    • Serial.println(digitalRead(PIN_BUTTON_A));

    • if (SerialBLE) { // If BLE is connected...

    • Blynk.run();

    • }

    • }

• 將上面的程式碼進行「上傳」（當然要將micro:bit 板利用USB線與電腦連接）

  • 上傳成功後，就可離線處理。

四、Blynk APP的使用

• • 下載及安裝 Blynk APP