From 96e847f630635aa6db613856cfb7d652291d6233 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Xose=20P=C3=A9rez?= <xose.perez@gmail.com>
Date: Sun, 12 Mar 2017 12:12:01 +0100
Subject: [PATCH] Do not report wrong temperature values for DS18B20

---
 code/espurna/ds18b20.ino | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/espurna/ds18b20.ino b/code/espurna/ds18b20.ino
index 648a422b..e0164916 100644
--- a/code/espurna/ds18b20.ino
+++ b/code/espurna/ds18b20.ino
@@ -71,7 +71,7 @@ void dsLoop() {
         double t = (tmpUnits == TMP_CELSIUS) ? ds18b20.getTempCByIndex(0) : ds18b20.getTempFByIndex(0);
 
         // Check if readings are valid
-        if (isnan(t)) {
+        if (isnan(t) || t < -50) {
 
             DEBUG_MSG_P(PSTR("[DS18B20] Error reading sensor\n"));