From 0d3cf5cb7809e13de16c5edb75c0437705efa4ce Mon Sep 17 00:00:00 2001
From: Samuel Sieb <samuel-github@sieb.net>
Date: Sat, 22 Jun 2024 04:57:27 -0700
Subject: [PATCH] Onewire (#6967)

* retry scan

* setup pin and log retries

* fix retries

* remove retries

---------

Co-authored-by: Samuel Sieb <samuel@sieb.net>
---
 esphome/components/gpio/one_wire/gpio_one_wire.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/esphome/components/gpio/one_wire/gpio_one_wire.cpp b/esphome/components/gpio/one_wire/gpio_one_wire.cpp
index 34c2cf3c29..b4e69e975a 100644
--- a/esphome/components/gpio/one_wire/gpio_one_wire.cpp
+++ b/esphome/components/gpio/one_wire/gpio_one_wire.cpp
@@ -9,6 +9,10 @@ static const char *const TAG = "gpio.one_wire";
 
 void GPIOOneWireBus::setup() {
   ESP_LOGCONFIG(TAG, "Setting up 1-wire bus...");
+  this->t_pin_->setup();
+  // clear bus with 480µs high, otherwise initial reset in search might fail
+  this->t_pin_->pin_mode(gpio::FLAG_INPUT | gpio::FLAG_PULLUP);
+  delayMicroseconds(480);
   this->search();
 }