From 50cf57affbe75ff603a3cf2d87146f669b10cd9d Mon Sep 17 00:00:00 2001
From: Otto Winter <otto@otto-winter.com>
Date: Fri, 24 Jul 2020 10:41:34 +0200
Subject: [PATCH] ESP8266 Disable Pin Initialization on Boot to fix pin
 toggling (#1185)

---
 esphome/core/esphal.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/esphome/core/esphal.cpp b/esphome/core/esphal.cpp
index 90707016c3..30a1e9c49f 100644
--- a/esphome/core/esphal.cpp
+++ b/esphome/core/esphal.cpp
@@ -304,3 +304,14 @@ void *memchr(const void *s, int c, size_t n) {
 }
 };
 #endif
+
+#ifdef ARDUINO_ARCH_ESP8266
+extern "C" {
+extern void resetPins() {  // NOLINT
+  // Added in framework 2.7.0
+  // usually this sets up all pins to be in INPUT mode
+  // however, not strictly needed as we set up the pins properly
+  // ourselves and this causes pins to toggle during reboot.
+}
+}
+#endif