From 2e50e1f50671d53aec57e78ad0f3e3c50c363ba4 Mon Sep 17 00:00:00 2001
From: Guillermo Ruffino <glm.net@gmail.com>
Date: Thu, 8 Apr 2021 09:22:30 -0300
Subject: [PATCH] Fix servo detach chopped PWM (#1650)

---
 esphome/components/esp8266_pwm/esp8266_pwm.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/esphome/components/esp8266_pwm/esp8266_pwm.cpp b/esphome/components/esp8266_pwm/esp8266_pwm.cpp
index 96290871e0..b3fd2398f3 100644
--- a/esphome/components/esp8266_pwm/esp8266_pwm.cpp
+++ b/esphome/components/esp8266_pwm/esp8266_pwm.cpp
@@ -37,6 +37,11 @@ void HOT ESP8266PWM::write_state(float state) {
   uint32_t duty_off = total_time_us - duty_on;
 
   if (duty_on == 0) {
+    // This is a hacky fix for servos: Servo PWM high time is maximum 2.4ms by default
+    // The frequency check is to affect this fix for servos mostly as the frequency is usually 50-300 hz
+    if (this->pin_->digital_read() && 50 <= this->frequency_ && this->frequency_ <= 300) {
+      delay(3);
+    }
     stopWaveform(this->pin_->get_pin());
     this->pin_->digital_write(this->pin_->is_inverted());
   } else if (duty_off == 0) {