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[RFC] Mi Band 2: Add rudimentary raw sensor data support #894

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[RFC] Mi Band 2: Add rudimentary raw sensor data support #894

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4 changes: 2 additions & 2 deletions app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/miband/MiBand2Service.java
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Original file line number Diff line number Diff line change
Expand Up @@ -35,8 +35,8 @@ public class MiBand2Service {
public static final UUID UUID_CHARACTERISTIC_FIRMWARE_DATA = UUID.fromString("00001532-0000-3512-2118-0009af100700");

public static final UUID UUID_UNKNOWN_CHARACTERISTIC0 = UUID.fromString("00000000-0000-3512-2118-0009af100700");
public static final UUID UUID_UNKNOWN_CHARACTERISTIC1 = UUID.fromString("00000001-0000-3512-2118-0009af100700");
public static final UUID UUID_UNKNOWN_CHARACTERISTIC2 = UUID.fromString("00000002-0000-3512-2118-0009af100700");
public static final UUID UUID_CHARACTERISTIC_1_SENSOR_CONTROL = UUID.fromString("00000001-0000-3512-2118-0009af100700");
public static final UUID UUID_CHARACTERISTIC_2_SENSOR_DATA = UUID.fromString("00000002-0000-3512-2118-0009af100700");
/**
* Alarms, Display and other configuration.
*/
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22 changes: 21 additions & 1 deletion ...ain/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband2/MiBand2Support.java
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Expand Up @@ -154,12 +154,17 @@ public void onReceive(Context context, Intent intent) {
private boolean needsAuth;
private volatile boolean telephoneRinging;
private volatile boolean isLocatingDevice;
private volatile boolean isReadingSensorData;

private final GBDeviceEventVersionInfo versionCmd = new GBDeviceEventVersionInfo();
private final GBDeviceEventBatteryInfo batteryCmd = new GBDeviceEventBatteryInfo();
private RealtimeSamplesSupport realtimeSamplesSupport;
private boolean alarmClockRinging;

private static final byte[] startSensorRead1 = new byte[]{0x01, 0x01, 0x19};
private static final byte[] startSensorRead2 = new byte[]{0x02};
private static final byte[] stopSensorRead = new byte[]{0x03};

public MiBand2Support() {
this(LOG);
}
Expand Down Expand Up @@ -271,6 +276,7 @@ public MiBand2Support enableFurtherNotifications(TransactionBuilder builder, boo
builder.notify(getCharacteristic(MiBand2Service.UUID_CHARACTERISTIC_3_CONFIGURATION), enable);
builder.notify(getCharacteristic(MiBand2Service.UUID_CHARACTERISTIC_6_BATTERY_INFO), enable);
builder.notify(getCharacteristic(MiBand2Service.UUID_CHARACTERISTIC_DEVICEEVENT), enable);
builder.notify(getCharacteristic(MiBand2Service.UUID_CHARACTERISTIC_2_SENSOR_DATA), enable);

return this;
}
Expand Down Expand Up @@ -1037,6 +1043,9 @@ public boolean onCharacteristicChanged(BluetoothGatt gatt,
} else if (MiBand2Service.UUID_CHARACTERISTIC_7_REALTIME_STEPS.equals(characteristicUUID)) {
handleRealtimeSteps(characteristic.getValue());
return true;
} else if (MiBand2Service.UUID_CHARACTERISTIC_2_SENSOR_DATA.equals(characteristicUUID)) {
handleSensorData(characteristic.getValue());
return true;
} else {
LOG.info("Unhandled characteristic changed: " + characteristicUUID);
logMessageContent(characteristic.getValue());
Expand Down Expand Up @@ -1131,6 +1140,10 @@ private void handleRealtimeSteps(byte[] value) {
}
}

private void handleSensorData(byte[] value) {
// See logcat for raw data output
}

private void enableRealtimeSamplesTimer(boolean enable) {
if (enable) {
getRealtimeSamplesSupport().start();
Expand Down Expand Up @@ -1350,9 +1363,16 @@ public void onSendConfiguration(String config) {
public void onTestNewFunction() {
try {
TransactionBuilder builder = performInitialized("test realtime steps");
builder.read(getCharacteristic(MiBand2Service.UUID_CHARACTERISTIC_7_REALTIME_STEPS));
if (isReadingSensorData) {
builder.write(getCharacteristic(MiBand2Service.UUID_CHARACTERISTIC_1_SENSOR_CONTROL), stopSensorRead);
} else {
builder.write(getCharacteristic(MiBand2Service.UUID_CHARACTERISTIC_1_SENSOR_CONTROL), startSensorRead1);
builder.write(getCharacteristic(MiBand2Service.UUID_CHARACTERISTIC_1_SENSOR_CONTROL), startSensorRead2);
}
builder.queue(getQueue());
isReadingSensorData = !isReadingSensorData;
} catch (IOException e) {
LOG.error("Unable to toggle sensor reading MI2", e);
}
}

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