From f9ba3e1d449971e22c29d06d7dd083201f4e3f10 Mon Sep 17 00:00:00 2001
From: Severin Kaderli <severin@kaderli.dev>
Date: Wed, 7 Dec 2022 23:53:04 +0100
Subject: [PATCH] More adjustments to the prototype

Signed-off-by: Severin Kaderli <severin@kaderli.dev>
---
 .../main/java/dev/kaderli/magsend/BaseSensorActivity.kt  | 5 +----
 .../src/main/java/dev/kaderli/magsend/ReceiveActivity.kt | 9 +++++----
 src/website/scripts/Constants.js                         | 2 +-
 3 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/src/MagSend/app/src/main/java/dev/kaderli/magsend/BaseSensorActivity.kt b/src/MagSend/app/src/main/java/dev/kaderli/magsend/BaseSensorActivity.kt
index aefa402..1060df3 100644
--- a/src/MagSend/app/src/main/java/dev/kaderli/magsend/BaseSensorActivity.kt
+++ b/src/MagSend/app/src/main/java/dev/kaderli/magsend/BaseSensorActivity.kt
@@ -9,9 +9,6 @@ import android.os.Bundle
 import kotlin.math.pow
 import kotlin.math.sqrt
 
-const val SAMPLING_RATE = 0
-
-
 abstract class BaseSensorActivity : BaseActivity(), SensorEventListener {
   private lateinit var sensorManager: SensorManager;
   private lateinit var sensor: Sensor;
@@ -20,7 +17,7 @@ abstract class BaseSensorActivity : BaseActivity(), SensorEventListener {
     super.onResume()
     sensorManager = getSystemService(Context.SENSOR_SERVICE) as SensorManager
     sensor = sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
-    sensorManager.registerListener(this, sensor, SAMPLING_RATE);
+    sensorManager.registerListener(this, sensor, SensorManager.SENSOR_DELAY_UI);
   }
 
   override fun onStop() {
diff --git a/src/MagSend/app/src/main/java/dev/kaderli/magsend/ReceiveActivity.kt b/src/MagSend/app/src/main/java/dev/kaderli/magsend/ReceiveActivity.kt
index c01c3b3..69ee708 100644
--- a/src/MagSend/app/src/main/java/dev/kaderli/magsend/ReceiveActivity.kt
+++ b/src/MagSend/app/src/main/java/dev/kaderli/magsend/ReceiveActivity.kt
@@ -82,7 +82,7 @@ class ReceiveActivity : BaseSensorActivity() {
         continue
       }
 
-      if (secondValue.timestamp - firstValue.timestamp > 2900 && thirdValue.timestamp - secondValue.timestamp > 2900 && fourthValue.timestamp - thirdValue.timestamp > 2900) {
+      if (secondValue.timestamp - firstValue.timestamp > 2900 && thirdValue.timestamp - secondValue.timestamp > 2900) {
         return true
       }
     }
@@ -91,6 +91,7 @@ class ReceiveActivity : BaseSensorActivity() {
   }
 
   private fun cleanSignal(signal: List<Sample<Signal>>): List<Sample<Signal>> {
+    // TODO: Improve this method
     // Remove outliers from the signal (single signal spikes or drops)
     val cleanSignal = signal.filterIndexed { index, sample ->
       var elementCount = 1
@@ -107,7 +108,7 @@ class ReceiveActivity : BaseSensorActivity() {
         nextIndex++
       }
 
-      elementCount > 5
+      elementCount > 3
     }
 
     return cleanSignal
@@ -142,7 +143,7 @@ class ReceiveActivity : BaseSensorActivity() {
       timeDifferences.add(sample.timestamp - compressedSignal[index - 1].timestamp)
     }
 
-    val clockTimeThreshold = 460//timeDifferences.max() * 0.75
+    val clockTimeThreshold = 900//timeDifferences.max() * 0.75
 
     val packetData = ArrayList<Int>()
     compressedSignal.forEachIndexed { index, sample ->
@@ -160,7 +161,7 @@ class ReceiveActivity : BaseSensorActivity() {
       }
     }
 
-    //Log.i(TAG, "$timeDifferences")
+    Log.i(TAG, "$timeDifferences")
     //Log.i(TAG, "$cleanSignal")
 
     return packetData
diff --git a/src/website/scripts/Constants.js b/src/website/scripts/Constants.js
index 9b1cd94..389a088 100644
--- a/src/website/scripts/Constants.js
+++ b/src/website/scripts/Constants.js
@@ -5,7 +5,7 @@ class Constants {
    * @type {Number}
    */
   static get CLOCK_TIME() {
-    return 500;
+    return 1000;
   }
 
   /**