From 606f4163d4f4e31dbcfc26eee9f9c388be274ce2 Mon Sep 17 00:00:00 2001
From: Jonny <jonny@jonnybarker.com>
Date: Tue, 22 Jul 2025 05:49:56 +0100
Subject: [PATCH] Ignore erroneous 53.3c CPU temperature value that ESP32 often
 returns

---
 Software/Software.ino | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Software/Software.ino b/Software/Software.ino
index dcbc4502..0fee32e9 100644
--- a/Software/Software.ino
+++ b/Software/Software.ino
@@ -361,7 +361,14 @@ void check_interconnect_available() {
 
 void update_calculated_values() {
   /* Update CPU temperature*/
-  datalayer.system.info.CPU_temperature = temperatureRead();
+  union {
+    float temp;
+    uint32_t hex;
+  } temp = {.temp = temperatureRead()};
+  if (temp.hex != 0x42555555) {
+    // Ignoring erroneous temperature value that ESP32 sometimes returns
+    datalayer.system.info.CPU_temperature = temp.temp;
+  }
 
   /* Calculate allowed charge/discharge currents*/
   if (datalayer.battery.status.voltage_dV > 10) {