HR Sensor : Add start/stop button to the HeartRate app (the HR sensors stays ON when the app is closed), display the HR value on the Clock app.

src/components/heartrate/HeartRateController.cpp

@@ -16,15 +16,15 @@ void HeartRateController::Update(HeartRateController::States newState, uint8_t h
 
 void HeartRateController::Start() {
   if(task != nullptr) {
+    state = States::NotEnoughData;
     task->PushMessage(Pinetime::Applications::HeartRateTask::Messages::StartMeasurement);
-    systemTask.PushMessage(System::SystemTask::Messages::HeartRateRunning);
   }
 }
 
 void HeartRateController::Stop() {
   if(task != nullptr) {
+    state = States::Stopped;
     task->PushMessage(Pinetime::Applications::HeartRateTask::Messages::StopMeasurement);
-    systemTask.PushMessage(System::SystemTask::Messages::HeartRateStopped);
   }
 }
 

src/components/heartrate/HeartRateController.h

@@ -12,7 +12,7 @@ namespace Pinetime {
   namespace Controllers {
     class HeartRateController {
     public:
-      enum class States { NotEnoughData, NoTouch, Running};
+      enum class States { Stopped, NotEnoughData, NoTouch, Running};
 
       explicit HeartRateController(System::SystemTask& systemTask);
 
@@ -27,7 +27,7 @@ namespace Pinetime {
     private:
       System::SystemTask& systemTask;
       Applications::HeartRateTask* task = nullptr;
-      States state = States::NotEnoughData;
+      States state = States::Stopped;
       uint8_t heartRate = 0;
     };
   }

src/components/heartrate/Ppg.cpp

@@ -94,3 +94,7 @@ void Ppg::SetOffset(uint16_t offset) {
   this->offset = offset;
   dataIndex = 0;
 }
+
+void Ppg::Reset() {
+  dataIndex = 0;
+}

src/components/heartrate/Ppg.h

@@ -14,6 +14,7 @@ namespace Pinetime {
       float HeartRate();
 
       void SetOffset(uint16_t i);
+      void Reset();
 
     private:
       std::array<int, 200> data;