안드로이드의 물건. - 반짝거려.

하드웨어

소프트웨어 설정

$ fastboot \
    flash gpt        partition-table.img \
    flash u-boot     u-boot-edison.bin \
    flash boot_a     boot.img \
    flash boot_b     boot.img \
    flash system_a   system.img \
    flash system_b   system.img \
    flash gapps_a    gapps.img \
    flash gapps_b    gapps.img \
    flash oem_a      oem.img \
    flash oem_b      oem.img \
    set_active a \
    reboot

$ adb wait-**for**-device
$ adb shell
edison:/$

edison: am startservice \
     -n com.google.wifisetup/.WifiSetupService \
     -a WifiSetupService.Connect \
     -e ssid <SSID-name> \
     -e passphrase <SSID-password>

Android Things 응용 프로그램 만들기

dependencies {
        ...
        provided 'com.google.android.things:androidthings:0.4-devpreview'
    }

<application
        android:label="@string/app_name">
        <uses-library android:name="com.google.android.things"/>
        <activity android:name=".HomeActivity">
            <!-- Launch activity as default from Android Studio -->
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>

            <!-- Launch activity automatically on boot -->
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.IOT_LAUNCHER"/>
                <category android:name="android.intent.category.DEFAULT"/>
            </intent-filter>
        </activity>
    </application>

주변 장치와 상호 작용

public class HomeActivity extends Activity {
        private static final String TAG = "HomeActivity";

        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);

            PeripheralManagerService service = new PeripheralManagerService();
            Log.d(TAG, "Available GPIO: " + service.getGpioList());
        }
    }

LED 깜박임

    public class HomeActivity extends Activity {
        private static final String TAG = "HomeActivity";
        private static final int INTERVAL_BETWEEN_BLINKS_MS = 1000;
        private static final **String ***LED_PIN_NAME = "IO13";

        private Handler mHandler = new Handler();

        private Gpio mLedGpio;

        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);

            PeripheralManagerService service = new PeripheralManagerService();
            Log.d(TAG, "Available GPIO: " + service.getGpioList());

            try{
                mLedGpio = service.openGpio(LED_PIN_NAME);
                mLedGpio.setDirection(Gpio.DIRECTION_OUT_INITIALLY_LOW);
                mHandler.post(mBlinkRunnable);

            }catch(IOException e){
                Log.e(TAG, "Error on peripheral", e);
            }

        }

        @Override
        protected void onDestroy() {
            super.onDestroy();

            // Step 4. Remove handler events on close.
            mHandler.removeCallbacks(mBlinkRunnable);

            // Step 5. Close the resource.
            if (mLedGpio != null) {
                try {
                    mLedGpio.close();
                } catch (IOException e) {
                    Log.e(TAG, "Error on PeripheralIO API", e);
                }
            }
        }

        private Runnable mBlinkRunnable = new Runnable() {
            @Override
            public void run() {
                // Exit if the GPIO is already closed
                if (mLedGpio == null) {
                    return;
                }

                try {
                    // Step 3. Toggle the LED state
                    mLedGpio.setValue(!mLedGpio.getValue());

                    // Step 4. Schedule another event after delay.
                    mHandler.postDelayed(mBlinkRunnable, INTERVAL_BETWEEN_BLINKS_MS);
                } catch (IOException e) {
                    Log.e(TAG, "Error on PeripheralIO API", e);
                }
            }
        };
    }