From eeaf5374d4d1cfe427c4aa7e883c8d830bb29967 Mon Sep 17 00:00:00 2001
From: Patric Gruber <me@patric-gruber.at>
Date: Thu, 25 May 2023 23:41:26 +0200
Subject: [PATCH] stop background after 30s of no data from the heart rate
 sensor

---
 src/heartratetask/HeartRateTask.cpp | 4 ++++
 src/heartratetask/HeartRateTask.h   | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/heartratetask/HeartRateTask.cpp b/src/heartratetask/HeartRateTask.cpp
index 56439e93..3ee04be9 100644
--- a/src/heartratetask/HeartRateTask.cpp
+++ b/src/heartratetask/HeartRateTask.cpp
@@ -154,6 +154,10 @@ void HeartRateTask::HandleSensorData(int* lastBpm) {
     state = States::BackgroundWaiting;
     StartWaiting();
   }
+  if (bpm == 0 && state == States::BackgroundMeasuring && xTaskGetTickCount() - measurementStart >= DURATION_UNTIL_BACKGROUND_MEASURMENT_IS_STOPPED) {
+    state = States::BackgroundWaiting;
+    StartWaiting();
+  }
 }
 
 int HeartRateTask::CurrentTaskDelay() {
diff --git a/src/heartratetask/HeartRateTask.h b/src/heartratetask/HeartRateTask.h
index e08d29d0..85ccb601 100644
--- a/src/heartratetask/HeartRateTask.h
+++ b/src/heartratetask/HeartRateTask.h
@@ -7,7 +7,8 @@
 
 #define DURATION_UNTIL_BACKGROUND_MEASURMENT_IS_STOPPED 30 * 1000 // 30 seconds assuming 1 Hz
 
-#define DURATION_BETWEEN_BACKGROUND_MEASUREMENTS 5 * 60 * 1000 // 5 Minutes assuming 1 Hz
+#define DURATION_BETWEEN_BACKGROUND_MEASUREMENTS 5 * 60 * 1000 // 5 minutes assuming 1 Hz
+#define DURATION_UNTIL_BACKGROUND_MEASURMENT_IS_STOPPED 30 * 1000 // 30 seconds assuming 1 Hz
 
 namespace Pinetime {
   namespace Drivers {