From a02d2e2e113df3bef6fc69c8929784d9b039b509 Mon Sep 17 00:00:00 2001
From: Stefan Agner <stefan@agner.ch>
Date: Mon, 3 Jan 2022 16:37:21 +0100
Subject: [PATCH] Explicitly use overloaded begin() for I2C master
 initialization (#2978)

Arduino 2.0.1 and newer support slave and master mode. The two modes
have a begin() method with different signature:

```
// Slave Begin
bool TwoWire::begin(uint8_t addr, int sdaPin, int sclPin, uint32_t frequency)

// Master Begin
bool TwoWire::begin(int sdaPin, int sclPin, uint32_t frequency)
```

Use type casting to make sure that overloaded method for master mode
is used.
---
 esphome/components/i2c/i2c_bus_arduino.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/esphome/components/i2c/i2c_bus_arduino.cpp b/esphome/components/i2c/i2c_bus_arduino.cpp
index eac2a47524..b605928692 100644
--- a/esphome/components/i2c/i2c_bus_arduino.cpp
+++ b/esphome/components/i2c/i2c_bus_arduino.cpp
@@ -25,7 +25,7 @@ void ArduinoI2CBus::setup() {
   wire_ = &Wire;  // NOLINT(cppcoreguidelines-prefer-member-initializer)
 #endif
 
-  wire_->begin(sda_pin_, scl_pin_);
+  wire_->begin(static_cast<int>(sda_pin_), static_cast<int>(scl_pin_));
   wire_->setClock(frequency_);
   initialized_ = true;
   if (this->scan_) {