# LED Effects and Macro Help **URL:** \ **Category:** General Discussion\ **Created:** [August 1, 2024, 11:36pm UTC](https://klipper.discourse.group/t/led-effects-and-macro-help/18026 "2024-08-01T23:36:24Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![IR\_TISM](https://avatars.discourse-cdn.com/v4/letter/i/dec6dc/32.png) [@IR\_TISM](https://klipper.discourse.group/u/IR_TISM)\ **Post date:** [August 1, 2024, 11:36pm UTC](https://klipper.discourse.group/t/led-effects-and-macro-help/18026/1 "2024-08-01T23:36:24Z")
### Basic Information: Printer Model: Ender3V2 MCU / Printerboard: BTT Ovtopus v1.1 Host / SBC: Raspi4 - Mainsail klippy.log _Fill out above information and_ **_in all cases attach your_ `klippy.log` _file_** (use zip to compress it, if too big). _Pasting your_ `printer.cfg` _is **not** needed_ _**Be sure to check our “Knowledge Base” Categor [Klippy\_08012024.zip](https://klipper.discourse.group/uploads/short-url/bsTlkUumTGd3s3sAWpSdKi2kYjt.zip) (19.6 KB) y first. Most relevant items, e.g. error messages, are covered there**_ ### Describe your issue: I am trying to use a repeating delayed gcode to turn on an LED effect based on “printer.extruder.target” 's value. My problem is if i set any effect while not running the heater’s the LED’s have this flicker everytime the delayed gcode updates. How can i solve this? I am setting “extruder\_target”. with “printer.extruder.target”. REFFERENCE MACROS.CFG LINE 5 “extruder\_target” sets “extruder\_on” tell me the heater is on or off for running a seperate macro to reset the appropriate lights. REFFERENCE MACROS.CFG LINE 160 ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/klipper/original/1X/64419bf2aac6639e6ef5cef200dcd456b0a01ac3.png) [@system](https://klipper.discourse.group/u/system)\ **Post date:** [September 30, 2024, 11:37pm UTC](https://klipper.discourse.group/t/led-effects-and-macro-help/18026/2 "2024-09-30T23:37:20Z")
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