From f4047b43379a290373a3fa08321ae8fe0e1b4772 Mon Sep 17 00:00:00 2001
From: Theo Arends <11044339+arendst@users.noreply.github.com>
Date: Thu, 5 Mar 2020 14:53:51 +0100
Subject: [PATCH] Fix GUI channel offset

Fix GUI channel offset when relays are present (#7855)
---
 tasmota/xdrv_01_webserver.ino | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tasmota/xdrv_01_webserver.ino b/tasmota/xdrv_01_webserver.ino
index 6bc4d2b16..31398f60d 100644
--- a/tasmota/xdrv_01_webserver.ino
+++ b/tasmota/xdrv_01_webserver.ino
@@ -1274,12 +1274,13 @@ bool HandleRootStatusRefresh(void)
     snprintf_P(svalue, sizeof(svalue), PSTR(D_CMND_WHITE " %s"), tmp);
     ExecuteWebCommand(svalue, SRC_WEBGUI);
   }
+  uint32_t light_device = LightDevice();  // Channel number offset
   uint32_t pwm_channels = (light_type & 7) > LST_MAX ? LST_MAX : (light_type & 7);
-  for (uint32_t j = 1; j <= pwm_channels; j++) {
-    snprintf_P(webindex, sizeof(webindex), PSTR("e%d"), j);
+  for (uint32_t j = 0; j < pwm_channels; j++) {
+    snprintf_P(webindex, sizeof(webindex), PSTR("e%d"), j +1);
     WebGetArg(webindex, tmp, sizeof(tmp));  // 0 - 100 percent
     if (strlen(tmp)) {
-      snprintf_P(svalue, sizeof(svalue), PSTR(D_CMND_CHANNEL "%d %s"), j, tmp);
+      snprintf_P(svalue, sizeof(svalue), PSTR(D_CMND_CHANNEL "%d %s"), j +light_device, tmp);
       ExecuteWebCommand(svalue, SRC_WEBGUI);
     }
   }