From b5c507d07047a13a95f89ea89be0ead187a389a2 Mon Sep 17 00:00:00 2001
From: Hendrik Langer <hendrik+dev@xd0.de>
Date: Sun, 7 Jan 2018 16:15:56 +0100
Subject: [PATCH] FastLED still not fixed -> Update only if not steady color

---
 software/src/led.cpp | 7 +++++--
 software/src/led.h   | 1 +
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/software/src/led.cpp b/software/src/led.cpp
index 86f1672..386be35 100644
--- a/software/src/led.cpp
+++ b/software/src/led.cpp
@@ -10,6 +10,7 @@ using namespace std;
 Led::Led(void) {
   index = 0;
   duration = 0;
+  change = true;
 }
 
 void Led::loop_rainbow(void) {
@@ -44,6 +45,7 @@ void Led::loop_steady(void) {
 }
 
 void Led::changeAnimation(uint8_t num, uint16_t duration) {
+  change = true;
   if (duration == 0) this->duration = UINT16_MAX;
   else this->duration = duration;
   if (num == 0) refresh = &Led::loop_steady;
@@ -64,7 +66,7 @@ void Led::setup(void) {
   xTaskCreate(
                     &cTaskWrapper,          /* Task function. */
                     "ledAnimationTask",        /* String with name of task. */
-                    2048,            /* Stack size in words. */
+                    4096,            /* Stack size in words. */
                     this,             /* Parameter passed as input of the task */
                     1,                /* Priority of the task. */
                     &ledTaskHandle);            /* Task handle. */
@@ -75,7 +77,8 @@ void Led::animationTask(void* parameters) {
     if (refresh != nullptr) {
        (*this.*refresh)();
        try {
-         FastLED.show();
+         if (refresh != (&Led::loop_steady) || change == true) FastLED.show();
+         change = false;
        } catch(...) {
          Serial.println("FastLED error");
          this->setup();
diff --git a/software/src/led.h b/software/src/led.h
index 56290b5..3089103 100644
--- a/software/src/led.h
+++ b/software/src/led.h
@@ -25,6 +25,7 @@ class Led {
     void loop_dispense(void);
     uint16_t duration;
     uint8_t index;
+    bool change;
 };
 
 #endif /* _LED_H */