From 04063cf0af29e09946bf3d1fa77ae91235cd8b84 Mon Sep 17 00:00:00 2001
From: Jean-François Milants <jf@codingfield.com>
Date: Sun, 17 Jan 2021 10:39:46 +0100
Subject: 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/heartratetask/HeartRateTask.cpp | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

(limited to 'src/heartratetask/HeartRateTask.cpp')

diff --git a/src/heartratetask/HeartRateTask.cpp b/src/heartratetask/HeartRateTask.cpp
index 5ce27452..5a6d2a5e 100644
--- a/src/heartratetask/HeartRateTask.cpp
+++ b/src/heartratetask/HeartRateTask.cpp
@@ -42,14 +42,21 @@ void HeartRateTask::Work() {
           break;
         case Messages::WakeUp:
           state = States::Running;
+          if(measurementStarted) {
+            lastBpm = 0;
+            StartMeasurement();
+          }
           break;
         case Messages::StartMeasurement:
+          if(measurementStarted) break;
           lastBpm = 0;
           StartMeasurement();
-          ppg.SetOffset(heartRateSensor.ReadHrs());
+          measurementStarted = true;
           break;
         case Messages::StopMeasurement:
+          if(!measurementStarted) break;
           StopMeasurement();
+          measurementStarted = false;
           break;
       }
     }
@@ -59,7 +66,7 @@ void HeartRateTask::Work() {
       ppg.Preprocess(hrs);
       auto bpm = ppg.HeartRate();
 
-      if (lastBpm == 0 && bpm == 0) controller.Update(Controllers::HeartRateController::States::NoTouch, 0);
+      if (lastBpm == 0 && bpm == 0) controller.Update(Controllers::HeartRateController::States::NotEnoughData, 0);
       if(bpm != 0) {
         lastBpm = bpm;
         controller.Update(Controllers::HeartRateController::States::Running, lastBpm);
@@ -80,10 +87,11 @@ void HeartRateTask::PushMessage(HeartRateTask::Messages msg) {
 
 void HeartRateTask::StartMeasurement() {
   heartRateSensor.Enable();
-  measurementStarted = true;
+  vTaskDelay(100);
+  ppg.SetOffset(static_cast<float>(heartRateSensor.ReadHrs()));
 }
 
 void HeartRateTask::StopMeasurement() {
   heartRateSensor.Disable();
-  measurementStarted = false;
+  vTaskDelay(100);
 }
-- 
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