From a2a83c5004dfe49b179cf45788c1673951f3a679 Mon Sep 17 00:00:00 2001
From: C W <something@fake-url.com>
Date: Tue, 28 Apr 2020 08:22:33 -0700
Subject: [PATCH] Fix missing yield in uart causing watchdog timer resets in
 esp32 when blocking waiting on serial responses. (#1016)

---
 esphome/components/uart/uart.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/esphome/components/uart/uart.cpp b/esphome/components/uart/uart.cpp
index 205e9e2300..08fc0a326e 100644
--- a/esphome/components/uart/uart.cpp
+++ b/esphome/components/uart/uart.cpp
@@ -96,6 +96,7 @@ bool UARTComponent::check_read_timeout_(size_t len) {
       ESP_LOGE(TAG, "Reading from UART timed out at byte %u!", this->available());
       return false;
     }
+    yield();
   }
   return true;
 }