From a7543cf8a420db4548cf66d1a40e9721ebdf7cb6 Mon Sep 17 00:00:00 2001
From: Damian Schneider <daedae@gmx.ch>
Date: Sat, 24 Jan 2026 17:11:39 +0100
Subject: [PATCH] turn on relay on first call to handleIO() if LEDs are on

---
 wled00/button.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/wled00/button.cpp b/wled00/button.cpp
index f6a07f5107..393f928cb8 100644
--- a/wled00/button.cpp
+++ b/wled00/button.cpp
@@ -368,8 +368,7 @@ void handleIO()
   // if we want to control on-board LED (ESP8266) or relay we have to do it here as the final show() may not happen until
   // next loop() cycle
   if (strip.getBrightness()) {
-    lastOnTime = millis();
-    if (offMode) {
+    if (offMode || lastOnTime == 0) {
       BusManager::on();
       if (rlyPin>=0) {
         pinMode(rlyPin, rlyOpenDrain ? OUTPUT_OPEN_DRAIN : OUTPUT);
@@ -378,6 +377,7 @@ void handleIO()
       }
       offMode = false;
     }
+    lastOnTime = millis();
   } else if (millis() - lastOnTime > 600 && !strip.needsUpdate()) {
     // for turning LED or relay off we need to wait until strip no longer needs updates (strip.trigger())
     if (!offMode) {