From 127c700a994b86066bc5e30ae466bd7db9a07d13 Mon Sep 17 00:00:00 2001
From: Will Tatam <will@netmindz.net>
Date: Sun, 6 Jul 2025 16:22:26 +0100
Subject: [PATCH] Define starting heap with lastHeap

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

diff --git a/wled00/bus_manager.cpp b/wled00/bus_manager.cpp
index 43b06048..6dfbd88f 100644
--- a/wled00/bus_manager.cpp
+++ b/wled00/bus_manager.cpp
@@ -783,7 +783,7 @@ void BusNetwork::cleanup() {
 #endif
 
 BusHub75Matrix::BusHub75Matrix(const BusConfig &bc) : Bus(bc.type, bc.start, bc.autoWhite) {
-
+  size_t lastHeap = ESP.getFreeHeap();
   _valid = false;
   _hasRgb = true;
   _hasWhite = false;
@@ -905,7 +905,7 @@ BusHub75Matrix::BusHub75Matrix(const BusConfig &bc) : Bus(bc.type, bc.start, bc.
     DEBUGBUS_PRINTLN("MatrixPanel_I2S_DMA = Default color order (RGB)");
   } else if(bc.colorOrder == COL_ORDER_BGR) {
     DEBUGBUS_PRINTLN("MatrixPanel_I2S_DMA = color order BGR");
-    uint8_t tmpPin;
+    int8_t tmpPin;
     tmpPin = mxconfig.gpio.r1;
     mxconfig.gpio.r1 = mxconfig.gpio.b1;
     mxconfig.gpio.b1 = tmpPin;