WeatherStationActivity.kt

WeatherStationActivity.kt

class WeatherStationActivity : Activity() {
    private var mDisplay: AlphanumericDisplay? = null

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        Log.d(TAG, "Weather Station Started")

        try {
            mDisplay = RainbowHat.openDisplay()
            mDisplay?.setEnabled(true)
            mDisplay?.display("OK  ")
            Log.d(TAG, "Initialized I2C Display")
        } catch (e: IOException) {
            throw RuntimeException("Error initializing display", e)
        }

        try {
            if (ledstrip != null) {
                ledstrip?.close()
            }
        } catch (e: IOException) {
            Log.d(TAG, e.toString())
        }

        val database = FirebaseDatabase.getInstance()

        val reference = database.getReference("googlehome").child("word")
        reference.addValueEventListener(object : ValueEventListener {
            override fun onDataChange(dataSnapshot: DataSnapshot) {
                val str = dataSnapshot.getValue(String::class.java)
                if (TextUtils.equals(str, "party")) {
                    try {
                        val rainbow = IntArray(7)

                        ledstrip = RainbowHat.openLedStrip()
                        ledstrip?.setBrightness(1)

                        for (i in rainbow.indices) {
                            rainbow[i] = Color.HSVToColor(255, floatArrayOf(i * 360f / rainbow.size, 1.0f, 1.0f))
                        }
                        ledstrip?.write(rainbow)

                    } catch (e: IOException) {
                        Log.d(TAG, e.toString())
                    }

                    Log.d("party!", str)
                }
            }

            override fun onCancelled(databaseError: DatabaseError) {}
        })
    }
}