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Example code of dept-of-scrapyard-robotics/st77xx

Informations about the package st77xx

Introduction

PHP Package for the ST77xx family of full-color TFT displays. Three controllers are supported, each with its own driver class:

All three drive 16-bit (RGB565) color by default and share an identical connection and usage surface; only the class name and default resolution differ.

Compatible SPI Interfaces

The ST77xx displays communicate with your device over SPI, the Serial Peripheral Interface.

You can interface with displays such as the ST77xx with this package the following ways:

Dependencies

This package makes use of modules within:

This package also requires one of the following extensions in order to interface with SPI

In addition, an extension wrapper package is needed

For ext-posi

For ext-ftdi

Installing from Composer

Inside the root of your PHP Project, simply require the ST77xx package from composer

Framework Configuration

If you would like to use the ScrapyardIO Framework to bootstrap your display without wasting lines configuring your display right in the script you can add your desired configuration to scrapyard-io.php, such as in this example:

SPI

Basic Usage

The examples below use the ST7789. Swap the class for ST7735 or ST7796 (under the same DeptOfScrapyardRobotics\Displays\ST77xx\... namespace) to drive those controllers — the builder chain is identical.

Native (POSIX) SPI driver. (Single Board Computers)

USB (MPSSE) driver using SPI. (Linux and MacOS)

Other controllers

Alternative Usage

Using Through the Display Library (as a ColorTFTDisplay)

Using Through the Display Framework (with an autoloaded config) (as a ColorTFTDisplay)

Display API

The setters in this API interface with the device directly (register writes), so you can use property access while still working against the panel itself. The three controllers share most properties but each exposes its own register set.

ST7735

Readable Properties (Getters)

Writable Properties (Setters)

ST7789

Readable Properties (Getters)

There are no readable magic properties exposed for the ST7789 in this package.

Writable Properties (Setters)

ST7796

Readable Properties (Getters)

There are no readable magic properties exposed for the ST7796 in this package.

Writable Properties (Setters)

Drawing on the Display

Draw with a Screen, which wraps a GFXRenderer over a frame buffer matched to the panel's FormatSpec, then ships the bytes on render(). A colour TFT uses a DirtyRegionsBuffer (coalesces changed rectangles, one update per region). Colors are 16-bit RGB565 integers (e.g. 0xF800 red, 0x07E0 green, 0x001F blue).

All versions of st77xx with dependencies

PHP Build Version
Package Version
Requires php Version ^8.3
scrapyard-io/waveforms Version ^0.4.0
scrapyard-io/reality-interface Version ^0.4.0
scrapyard-io/bare-metal Version ^0.4.0
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