From f8f0f4f616a698ffb9a300718f7ba272e8f28906 Mon Sep 17 00:00:00 2001
From: Stephan Hadinger <stephan.hadinger@gmail.com>
Date: Thu, 3 Sep 2020 15:11:14 +0200
Subject: [PATCH] Reduce memory usage of BackLog

---
 tasmota/support_command.ino | 2 +-
 tasmota/tasmota.ino         | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/tasmota/support_command.ino b/tasmota/support_command.ino
index 379d15e0c..0cdba2969 100644
--- a/tasmota/support_command.ino
+++ b/tasmota/support_command.ino
@@ -323,7 +323,7 @@ void CmndBacklog(void)
           backlog.add(blcommand);
         }
 #else
-        backlog[backlog_index] = String(blcommand);
+        backlog[backlog_index] = blcommand;
         backlog_index++;
         if (backlog_index >= MAX_BACKLOG) backlog_index = 0;
 #endif
diff --git a/tasmota/tasmota.ino b/tasmota/tasmota.ino
index d257b6ddb..d3b3afd32 100644
--- a/tasmota/tasmota.ino
+++ b/tasmota/tasmota.ino
@@ -339,6 +339,7 @@ void BacklogLoop(void) {
 #else
       backlog_mutex = true;
       ExecuteCommand((char*)backlog[backlog_pointer].c_str(), SRC_BACKLOG);
+      backlog[backlog_pointer] = (const char*) nullptr;   // force deallocation of the String internal memory
       backlog_pointer++;
       if (backlog_pointer >= MAX_BACKLOG) { backlog_pointer = 0; }
       backlog_mutex = false;