From 418ab357a93bbe2a240560c9c2992c62d33cb4b1 Mon Sep 17 00:00:00 2001
From: Heiko Rothe <me@heikorothe.com>
Date: Thu, 18 Mar 2021 21:57:28 +0100
Subject: [PATCH] fix(bluetooth-classic): improve signal strength estimation

Kalman parameters have been re-tuned to be reactive, but still smoothen
away noise.
---
 .../bluetooth-classic/bluetooth-classic.service.ts          | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/integrations/bluetooth-classic/bluetooth-classic.service.ts b/src/integrations/bluetooth-classic/bluetooth-classic.service.ts
index 34a00d5..17353dd 100644
--- a/src/integrations/bluetooth-classic/bluetooth-classic.service.ts
+++ b/src/integrations/bluetooth-classic/bluetooth-classic.service.ts
@@ -37,7 +37,7 @@ const execPromise = util.promisify(exec);
 
 @Injectable()
 export class BluetoothClassicService
-  extends KalmanFilterable(Object, 1.4, 1)
+  extends KalmanFilterable(Object, 0.01, 0.7)
   implements OnModuleInit, OnApplicationBootstrap {
   private readonly config: BluetoothClassicConfig;
   private rotationOffset = 0;
@@ -163,7 +163,9 @@ export class BluetoothClassicService
       `Received RSSI of ${event.rssi} for ${event.device.address} from ${event.instanceName}`
     );
 
-    const baseId = this.config.entityOverrides[event.device.address]?.id || event.device.address;
+    const baseId =
+      this.config.entityOverrides[event.device.address]?.id ||
+      event.device.address;
     const sensorId = makeId(`bluetooth-classic ${baseId}`);
     let sensor: RoomPresenceDistanceSensor;
     if (this.entitiesService.has(sensorId)) {