From 31ff76427c8629e6727063538b510e0e05d41649 Mon Sep 17 00:00:00 2001
From: amishv <41266094+amishv@users.noreply.github.com>
Date: Mon, 21 Oct 2019 16:13:28 +0530
Subject: [PATCH] Implementation of LCD Clear (#781)

* Implementation of LCD Clear

* Implementation of LCD Clear

* Implementation of LCD Clear

* Implementation of LCD Clear
---
 esphome/components/lcd_base/lcd_display.cpp | 5 +++++
 esphome/components/lcd_base/lcd_display.h   | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/esphome/components/lcd_base/lcd_display.cpp b/esphome/components/lcd_base/lcd_display.cpp
index 51541049b1..25ac143817 100644
--- a/esphome/components/lcd_base/lcd_display.cpp
+++ b/esphome/components/lcd_base/lcd_display.cpp
@@ -148,6 +148,11 @@ void LCDDisplay::printf(const char *format, ...) {
   if (ret > 0)
     this->print(0, 0, buffer);
 }
+void LCDDisplay::clear() {
+  // clear display, also sets DDRAM address to 0 (home)
+  this->command_(LCD_DISPLAY_COMMAND_CLEAR_DISPLAY);
+  delay(2);
+}
 #ifdef USE_TIME
 void LCDDisplay::strftime(uint8_t column, uint8_t row, const char *format, time::ESPTime time) {
   char buffer[64];
diff --git a/esphome/components/lcd_base/lcd_display.h b/esphome/components/lcd_base/lcd_display.h
index 791f31ace3..ee150059c6 100644
--- a/esphome/components/lcd_base/lcd_display.h
+++ b/esphome/components/lcd_base/lcd_display.h
@@ -23,6 +23,8 @@ class LCDDisplay : public PollingComponent {
   float get_setup_priority() const override;
   void update() override;
   void display();
+  //// Clear LCD display
+  void clear();
 
   /// Print the given text at the specified column and row.
   void print(uint8_t column, uint8_t row, const char *str);