From c5a65790cb71a8e1ee1bc9ad16efb40cf6c6cdbd Mon Sep 17 00:00:00 2001
From: sieja <sieja>
Date: Mon, 10 Feb 2025 21:36:33 +0100
Subject: [PATCH] korekta spectral sensor

---
 .../SpectralSensor/SpectralSensor.ino         | 20 +++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/LeonardoProMicro/SpectralSensor/SpectralSensor.ino b/LeonardoProMicro/SpectralSensor/SpectralSensor.ino
index 21342fe..dee4ee7 100644
--- a/LeonardoProMicro/SpectralSensor/SpectralSensor.ino
+++ b/LeonardoProMicro/SpectralSensor/SpectralSensor.ino
@@ -60,6 +60,7 @@ int GraphHeight = 32;
 int GrapWidth = 20;
 float ReadValues[6] = {0, 0, 0, 0, 0, 0};
 float maxValue = 0.0;
+float minValue = 0.0;
 float test_vle = 1.0;
 char FloatInChar[20];
 char ChValue[20];
@@ -257,7 +258,7 @@ void loop() {
     }
       display.setRotation(0);
 
-  //show relative calculated graph
+  //show relative calculated values graph
    if (menu_number == 3 || menu_number == 7 ){
       maxValue = 0;
       drawControls();
@@ -332,7 +333,7 @@ void loop() {
     }
 
       
-    //show raw data relative  graph
+    //show relative raw data  graph
     if (menu_number == 4 || menu_number == 8 ){
       maxValue = 0;
       drawControls();
@@ -341,12 +342,15 @@ void loop() {
       for (int i = 0; i < 5; i++) {
           maxValue = max(maxValue, ReadValues[i]);
       }
-      HeightRed     = int((RawRed     / maxValue) * GraphHeight);
-      HeightOrange  = int((RawOrange  / maxValue) * GraphHeight);
-      HeightYellow  = int((RawYellow  / maxValue) * GraphHeight);
-      HeightGreen   = int((RawGreen   / maxValue) * GraphHeight);
-      HeightBlue    = int((RawBlue    / maxValue) * GraphHeight);
-      HeightViolet  = int((RawViolet  / maxValue) * GraphHeight);
+      for (int i = 0; i < 5; i++) {
+          minValue = min(minValue, ReadValues[i]);
+      }
+      HeightRed     = int(((RawRed + abs(minValue))     / (maxValue + abs(minValue)) * GraphHeight);
+      HeightOrange  = int(((RawOrange + abs(minValue))  / (maxValue + abs(minValue)) * GraphHeight);
+      HeightYellow  = int(((RawYellow + abs(minValue))  / (maxValue + abs(minValue)) * GraphHeight);
+      HeightGreen   = int(((RawGreen + abs(minValue))   / (maxValue + abs(minValue)) * GraphHeight);
+      HeightBlue    = int(((RawBlue + abs(minValue))    / (maxValue + abs(minValue)) * GraphHeight);
+      HeightViolet  = int(((RawViolet + abs(minValue))  / (maxValue + abs(minValue)) * GraphHeight);
   
   
       display.setCursor(1 * GrapWidth -10, 10);