From 244d656c8e26f13e8f8a072f847347ea5feeb59d Mon Sep 17 00:00:00 2001
From: "Dirk O. Kaar" <dok@dok-net.net>
Date: Fri, 2 Aug 2019 15:05:51 +0200
Subject: [PATCH] Use PolledTimeout for busy loop timeout

---
 cores/esp8266/HardwareSerial.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cores/esp8266/HardwareSerial.cpp b/cores/esp8266/HardwareSerial.cpp
index 6ec94500db..c64c134693 100644
--- a/cores/esp8266/HardwareSerial.cpp
+++ b/cores/esp8266/HardwareSerial.cpp
@@ -121,9 +121,9 @@ unsigned long HardwareSerial::testBaudrate()
 
 unsigned long HardwareSerial::detectBaudrate(time_t timeoutMillis)
 {
-    time_t startMillis = millis();
+    esp8266::polledTimeout::oneShotFastMs timeOut(timeoutMillis);
     unsigned long detectedBaudrate;
-    while ((time_t) millis() - startMillis < timeoutMillis) {
+    while (!timeOut) {
         if ((detectedBaudrate = testBaudrate())) {
           break;
         }