https://github.com/dawinaj/hd44780

HD44780 driver for ESP32
https://github.com/dawinaj/hd44780

cpp driver esp32 gpio hal hd44780 lcd-display pcf8574

Last synced: 23 days ago
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HD44780 driver for ESP32

• Host: GitHub
• URL: https://github.com/dawinaj/hd44780
• Owner: dawinaj
• License: mit
• Created: 2023-04-17T10:28:59.000Z (almost 2 years ago)
• Default Branch: master
• Last Pushed: 2024-09-14T23:04:40.000Z (4 months ago)
• Last Synced: 2024-11-07T16:09:45.501Z (2 months ago)
• Topics: cpp, driver, esp32, gpio, hal, hd44780, lcd-display, pcf8574
• Language: C++
• Homepage:
• Size: 25.1 MB
• Stars: 0
• Watchers: 1
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# ESP32 HD44780 driver/library

This is a header-only C++ style library (see files in `main/include/`) for driving the popular **HD44780** LCD display from an **ESP32** microcontroller.

Currently, there exist two Interfaces - one using **PCF8574** expander via **I2C** and one using 4-bit **GPIO** connection.

Feel free to suggest or write other Interfaces (like for other expanders, or full 8-bit 12-pin communication).

Main source file contains simple tests. You can see the results [here](https://imgur.com/a/MCVgFki). See performance [here](https://www.youtube.com/watch?v=B4rCxr45nzM).

## Installation & usage

See example in `main/main.cpp`.

- Move the files from `main/include/` to your include directory.

- #include the `HD44780.h` and `PCF8574.h` or `GPIO4BIT.h` in your code.

- Create `HD44780_PCF8574` or `HD44780_GPIO4BIT` object.

- Create `HD44780` object with the earlier Interface object.

- Done!