Demo Project: ESP-32 LCD1602/2004 driver C++ library for the ESP-IDF

Introduction

This is a demo project for a library to control LCD1602 / LCD 2004 display with 12c using the ESP-32 IDF toolchain ESP-IDF.

Please note that this is actually a demo project. The library is in the components folder.

Features

• Display numbers
• Scrolling text
• Simplified interface
• C++ Implementation

Software required

esp-idf v5.3 or later.

Installation

git clone https://github.com/cfrankb/esp32-lcd1602_2004-cpp
cd esp32-lcd1602_2004-cpp/
idf.py set-target {esp32/esp32s2/esp32s3/esp32c3}
idf.py menuconfig
idf.py flash

Suggested wiring for the LCD 1602/2004 12c Display Module

LCD1602/2004	wirecolor	GPIO Pin
SDA	blue	21
SCL	green	22
GRN	black	GRN
VCC	red	5v *

* most models use 5v. There are some variants that operate on 3.3v. Check documentation before proceeding.

Tested hardware

TBA

Source Code

The source is available from GitHub cfrankb/esp32-lcd1602_2004-cpp.