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This library is an abstraction. To use it, you need to implement functions that will handle communication with the display driver. The header file contains a signature and description of these functions. The implementation itself is very easy. The source code includes an implementation example for Wiring Pi based on the 4-line SPI. After implementing these functions, you need to link them to the library code into your program. This architecture allows this library to be used with a wide range of devices.
If you need to use this library with a parallel interface, you have to rewrite the functions for sending data and drawing. The code is made so simply that this re-implementation will be easy.
The library code has been created in such a way that it can be easily changed to support similar display drivers. Therefore, optimal size variables were used. If you need to minimize the use of operating memory, you can: reduce the size of the variables that store the dimensions of the display and get rid of the pointers. The code will become less flexible but more suited for a specific device.
By using the pointer, you can easily and quickly switch to another display module and draw on it.
The library code is made in the ANSI C standard (X3.159-1989).
- The documentation was written in the header file: st7735s.h
- Implementation details can be read in the file: st7735s.c
- Usage guide is based on the Wiring Pi library: main_example_wpi.c
- Datasheet: st7735s-datasheet-v1.4.pdf
This software is licensed under the MIT License. See the license file for details.