diff --git a/Marlin/src/feature/leds/leds.cpp b/Marlin/src/feature/leds/leds.cpp
index 3a9b724216da3184788f34c46aaad5189c2e8a64..badab971f6a7c72e6a4e5d76e4c3bb3f36073837 100644
--- a/Marlin/src/feature/leds/leds.cpp
+++ b/Marlin/src/feature/leds/leds.cpp
@@ -148,4 +148,18 @@ void LEDLights::set_color(const LEDColor &incol
void LEDLights::toggle() { if (lights_on) set_off(); else update(); }
#endif
+#ifdef LED_BACKLIGHT_TIMEOUT
+
+ millis_t LEDLights::led_off_time; // = 0
+
+ void LEDLights::update_timeout(const bool power_on) {
+ const millis_t ms = millis();
+ if (power_on)
+ reset_timeout(ms);
+ else if (ELAPSED(ms, led_off_time))
+ set_off();
+ }
+
+#endif
+
#endif // HAS_COLOR_LEDS
diff --git a/Marlin/src/feature/leds/leds.h b/Marlin/src/feature/leds/leds.h
index eafede7dc9ff3e7768987d90d413c4c325924933..e3b060e2671162c13f130c8d9597175bd26e2425 100644
--- a/Marlin/src/feature/leds/leds.h
+++ b/Marlin/src/feature/leds/leds.h
@@ -201,6 +201,17 @@ public:
static void toggle(); // swap "off" with color
static inline void update() { set_color(color); }
#endif
+
+ #ifdef LED_BACKLIGHT_TIMEOUT
+ private:
+ static millis_t led_off_time;
+ public:
+ static inline void reset_timeout(const millis_t &ms) {
+ led_off_time = ms + LED_BACKLIGHT_TIMEOUT;
+ if (!lights_on) set_default();
+ }
+ static void update_timeout(const bool power_on);
+ #endif
};
extern LEDLights leds;
diff --git a/Marlin/src/feature/leds/neopixel.cpp b/Marlin/src/feature/leds/neopixel.cpp
index ee2854c27a12ac4828cf59d6963f3e821da3c757..1c1afcc5fc9385e2091e75c95042ae07ab8f59c4 100644
--- a/Marlin/src/feature/leds/neopixel.cpp
+++ b/Marlin/src/feature/leds/neopixel.cpp
@@ -36,10 +36,20 @@
Adafruit_NeoPixel pixels(NEOPIXEL_PIXELS, NEOPIXEL_PIN, NEOPIXEL_TYPE + NEO_KHZ800);
+#ifdef NEOPIXEL_BKGD_LED_INDEX
+ void set_neopixel_color_background() {
+ uint8_t background_color[4] = NEOPIXEL_BKGD_COLOR;
+ pixels.setPixelColor(NEOPIXEL_BKGD_LED_INDEX, pixels.Color(background_color[0], background_color[1], background_color[2], background_color[3]));
+ }
+#endif
+
void set_neopixel_color(const uint32_t color) {
for (uint16_t i = 0; i < pixels.numPixels(); ++i) {
#ifdef NEOPIXEL_BKGD_LED_INDEX
- if (NEOPIXEL_BKGD_LED_INDEX == i) i++;
+ if (i == NEOPIXEL_BKGD_LED_INDEX && color != 0x000000) {
+ set_neopixel_color_background();
+ continue;
+ }
#endif
pixels.setPixelColor(i, color);
}
@@ -52,14 +62,6 @@ void set_neopixel_color_startup(const uint32_t color) {
pixels.show();
}
-#ifdef NEOPIXEL_BKGD_LED_INDEX
- void set_neopixel_color_background() {
- uint8_t background_color[4] = NEOPIXEL_BKGD_COLOR;
- pixels.setPixelColor(NEOPIXEL_BKGD_LED_INDEX, pixels.Color(background_color[0], background_color[1], background_color[2], background_color[3]));
- pixels.show();
- }
-#endif
-
void setup_neopixel() {
SET_OUTPUT(NEOPIXEL_PIN);
pixels.setBrightness(NEOPIXEL_BRIGHTNESS); // 0 - 255 range
diff --git a/Marlin/src/inc/Conditionals_LCD.h b/Marlin/src/inc/Conditionals_LCD.h
index e458ee64816f118f237f729afb7862ae34fb9765..69b73a9194141b63b1bc9515aa63ab658ab16382 100644
--- a/Marlin/src/inc/Conditionals_LCD.h
+++ b/Marlin/src/inc/Conditionals_LCD.h
@@ -150,6 +150,9 @@
#define LCD_CONTRAST_MAX 255
#define DEFAULT_LCD_CONTRAST 255
#define LED_COLORS_REDUCE_GREEN
+ #if POWER_SUPPLY > 0 && EITHER(FYSETC_MINI_12864_2_0, FYSETC_MINI_12864_2_1)
+ #define LED_BACKLIGHT_TIMEOUT 10000
+ #endif
// Require LED backlighting enabled
#if EITHER(FYSETC_MINI_12864_1_2, FYSETC_MINI_12864_2_0)
diff --git a/Marlin/src/inc/SanityCheck.h b/Marlin/src/inc/SanityCheck.h
index 8f66fd74c4d6d1218ceaf41878127c7d0dc4087d..c237c3226b7321be1e2b2d334542954743d11c24 100644
--- a/Marlin/src/inc/SanityCheck.h
+++ b/Marlin/src/inc/SanityCheck.h
@@ -1500,6 +1500,13 @@ static_assert(Y_MAX_LENGTH >= Y_BED_SIZE, "Movement bounds (Y_MIN_POS, Y_MAX_POS
#error "LED_CONTROL_MENU requires BLINKM, RGB_LED, RGBW_LED, PCA9533, PCA9632, or NEOPIXEL_LED."
#endif
+/**
+ * LED Backlight Timeout
+ */
+#if defined(LED_BACKLIGHT_TIMEOUT) && !(EITHER(FYSETC_MINI_12864_2_0, FYSETC_MINI_12864_2_1) && POWER_SUPPLY > 0)
+ #error "LED_BACKLIGHT_TIMEOUT requires a Fysetc Mini Panel and a Power Switch."
+#endif
+
/**
* Basic multi hotend duplication mode
*/
diff --git a/Marlin/src/lcd/ultralcd.cpp b/Marlin/src/lcd/ultralcd.cpp
index 4822ebd2d77d1cc6f1d0ef94166d1a6807c08455..cd501ef32cd25c73f03cc74f4503d087b7a7b179 100644
--- a/Marlin/src/lcd/ultralcd.cpp
+++ b/Marlin/src/lcd/ultralcd.cpp
@@ -22,6 +22,10 @@
#include "../inc/MarlinConfigPre.h"
+#ifdef LED_BACKLIGHT_TIMEOUT
+ #include "../feature/leds/leds.h"
+#endif
+
// These displays all share the MarlinUI class
#if HAS_DISPLAY
#include "ultralcd.h"
@@ -563,6 +567,16 @@ void MarlinUI::status_screen() {
void MarlinUI::kill_screen(PGM_P lcd_msg) {
init();
set_alert_status_P(lcd_msg);
+
+ // RED ALERT. RED ALERT.
+ #ifdef LED_BACKLIGHT_TIMEOUT
+ leds.set_color(LEDColorRed());
+ #ifdef NEOPIXEL_BKGD_LED_INDEX
+ pixels.setPixelColor(NEOPIXEL_BKGD_LED_INDEX, 255, 0, 0, 0);
+ pixels.show();
+ #endif
+ #endif
+
draw_kill_screen();
}
@@ -714,6 +728,10 @@ void MarlinUI::update() {
static millis_t next_lcd_update_ms;
millis_t ms = millis();
+ #ifdef LED_BACKLIGHT_TIMEOUT
+ leds.update_timeout(powersupply_on);
+ #endif
+
#if HAS_LCD_MENU
#if LCD_TIMEOUT_TO_STATUS
@@ -777,6 +795,10 @@ void MarlinUI::update() {
ms = millis();
next_lcd_update_ms = ms + LCD_UPDATE_INTERVAL; // delay LCD update until after SD activity completes
+
+ #ifdef LED_BACKLIGHT_TIMEOUT
+ leds.reset_timeout(ms);
+ #endif
}
#endif // SDSUPPORT && SD_DETECT_PIN
@@ -851,10 +873,16 @@ void MarlinUI::update() {
encoderPosition += (encoderDiff * encoderMultiplier) / (ENCODER_PULSES_PER_STEP);
encoderDiff = 0;
}
+
#if HAS_LCD_MENU && LCD_TIMEOUT_TO_STATUS
return_to_status_ms = ms + LCD_TIMEOUT_TO_STATUS;
#endif
+
refresh(LCDVIEW_REDRAW_NOW);
+
+ #ifdef LED_BACKLIGHT_TIMEOUT
+ leds.reset_timeout(ms);
+ #endif
}
#endif