From f761d3349ea38f806f2adc00e30e4dd82f174814 Mon Sep 17 00:00:00 2001
From: Ollo <Ollo@Mobile>
Date: Fri, 6 Dec 2024 20:33:24 +0100
Subject: [PATCH] Read RPM each 100 cycles

---
 src/main.cpp | 27 ++++++++++++++++++++-------
 1 file changed, 20 insertions(+), 7 deletions(-)

diff --git a/src/main.cpp b/src/main.cpp
index 0449de1..9622c7d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -22,6 +22,7 @@
 #define INVALID_TEMP          (MAX_TEMP+MAX_TEMP) /**< Invalid temperature (on sensor failures)*/
 
 #define TEMP_SENSOR_MEASURE_SERIES  5 /**< Maximum resets */
+#define FAN_RPM_READLEVEL     100
 
 /******************************************************************************
  *                            LOCAL VARIABLES
@@ -136,12 +137,14 @@ float readTemperature(void)
  */
 void loop()
 {
+  static int i = 0;
+  static int actualFanSpeedRpm = -1;
   float temp = readTemperature();
 
   Serial.print(temp);
   Serial.print(";");
 
-  int fanSpeedPercent, actualFanSpeedRpm = 0;
+  int fanSpeedPercent;
 
   if (temp < MIN_TEMP) {
     fanSpeedPercent = 0;
@@ -152,7 +155,21 @@ void loop()
   }
 
 #ifdef FAN_ENABLED
-  actualFanSpeedRpm = getFanSpeedRpm();
+  if (actualFanSpeedRpm == 0)
+  {
+    if (i > FAN_RPM_READLEVEL)
+    {
+      actualFanSpeedRpm = getFanSpeedRpm();
+      i = 0;
+    }
+    i++;
+  }
+  else
+  {
+    actualFanSpeedRpm = getFanSpeedRpm();
+    i = 0;
+  }
+
   pixels->fill(Color(255, 0,0));
   pixels->setBrightness(actualFanSpeedRpm);
   pixels->show();
@@ -175,9 +192,5 @@ void loop()
 
   singleLed->fill(Color(0,128,128));
   singleLed->setBrightness(fanSpeedPercent);
-  singleLed->show(); 
-
-#ifdef FAN_ENABLED  
-  delay(DELAY_TIME);
-#endif
+  singleLed->show();
 }