https://github.com/nyh-workshop/esp32-i2clcd

Small ESP32 program with demo I2C LCD code.
https://github.com/nyh-workshop/esp32-i2clcd

esp32 hd44780 i2c

Last synced: about 1 month ago
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Small ESP32 program with demo I2C LCD code.

• Host: GitHub
• URL: https://github.com/nyh-workshop/esp32-i2clcd
• Owner: nyh-workshop
• Created: 2018-02-16T03:01:06.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2022-12-03T13:44:02.000Z (over 3 years ago)
• Last Synced: 2025-01-19T19:58:39.682Z (over 1 year ago)
• Topics: esp32, hd44780, i2c
• Language: C++
• Homepage:
• Size: 150 KB
• Stars: 0
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# esp32-i2cLCD

## Simple ESP32 program with I2C LCD.

The I2C adapter is commonly found in eBay. Plug a basic HD44780 LCD and you can print some text on the screen.

The sample program inside just prints "Hello World!" on the screen.

### Connection: 

- SCL -> pin 21 on ESP32

- SDA -> pin 22 on ESP32

![alt tag](https://github.com/uncle-yong/esp32-i2cLCD/blob/master/i2c%20LCD.PNG)

### Requirements:

- ESP32-IDF

- Visual Studio Code

- I2C LCD module

- Level shifter module (because the LCD module is +5V and the ESP32 is only working at +3.3V)

## For more information of installing the toolchain w/ Visual Studio code, proceed to the hackaday page:

1. https://hackaday.io/project/53259-deploying-standalone-esp32-idf-sdk-platform (without PlatformIO)

2. https://hackaday.io/project/43374-esp32-idf-deploying-the-development-platform (with PlatformIO)

 

Microsecond delay code is from: https://github.com/espressif/arduino-esp32