From 89751c4d860b788b856cec9638073c3637577ab7 Mon Sep 17 00:00:00 2001
From: Theo Arends <11044339+arendst@users.noreply.github.com>
Date: Fri, 8 Oct 2021 15:33:13 +0200
Subject: [PATCH] Fix ESP32 temperature jump on some devices

Fix ESP32 temperature jump on some devices like Sonoff DualR3
---
 tasmota/support_esp.ino | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tasmota/support_esp.ino b/tasmota/support_esp.ino
index 748d71c64..4a6c2c53b 100644
--- a/tasmota/support_esp.ino
+++ b/tasmota/support_esp.ino
@@ -478,7 +478,10 @@ void *special_calloc(size_t num, size_t size) {
 
 float CpuTemperature(void) {
 #ifdef CONFIG_IDF_TARGET_ESP32
-  return (float)temperatureRead();  // In Celsius
+//  return (float)temperatureRead();  // In Celsius
+  float t = (float)temperatureRead();  // In Celsius
+  if (t > 81) { t = t - 27.2; }        // Fix temp jump observed on some ESP32 like DualR3
+  return t;
 #else
   // Currently (20210801) repeated calls to temperatureRead() on ESP32C3 and ESP32S2 result in IDF error messages
   static float t = NAN;