From ccb87026056b963c00d7575707e76f705a3d62a5 Mon Sep 17 00:00:00 2001
From: Theo Arends <11044339+arendst@users.noreply.github.com>
Date: Wed, 28 Jul 2021 18:37:21 +0200
Subject: [PATCH] Fix ESP32 PWM buzzer (#12717)

---
 tasmota/xdrv_24_buzzer.ino | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tasmota/xdrv_24_buzzer.ino b/tasmota/xdrv_24_buzzer.ino
index 3921589f3..377c2fee6 100644
--- a/tasmota/xdrv_24_buzzer.ino
+++ b/tasmota/xdrv_24_buzzer.ino
@@ -50,6 +50,9 @@ void BuzzerSet(uint32_t state) {
   if (Settings->flag4.buzzer_freq_mode) {     // SetOption111 - Enable frequency output mode for buzzer
     static uint8_t last_state = 0;
     if (last_state != state) {
+#ifdef ESP32
+      analogAttach(Pin(GPIO_BUZZER), 7);
+#endif  // ESP32
       // Set 50% duty cycle for frequency output
       // Set 0% (or 100% for inverted PWM) duty cycle which turns off frequency output either way
       analogWrite(Pin(GPIO_BUZZER), (state) ? Settings->pwm_range / 2 : 0);  // set duty cycle for frequency output