ai-agent

Adafruit-ST7735-Library

This is a library for the Adafruit 1.8" SPI display http://www.adafruit.com/products/358 and http://www.adafruit.com/products/618
716 stars+2★ this week327 forksC++Updated 10/20/2026100% free · open source
What it does

Enables Arduino (or compatible) boards to control the Adafruit 1.8" SPI color LCD (ST7735 driver) and draw graphics, text, and images.

When to use it
  • •You need a low‑cost, 128×160 pixel color screen on a microcontroller prototype.
  • •You want to show status dashboards, sensor readouts, or simple UI on a handheld device.
  • •You are building a product that already uses Arduino/ESP32 hardware and needs a built‑in display.
Ready-to-paste prompt
```cpp
#include <Adafruit_GFX.h>
#include <Adafruit_ST7735.h>

#define TFT_CS   10
#define TFT_DC    9
#define TFT_RST   8

Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST);

void setup() {
  tft.initR(INITR_BLACKTAB);      // initialize
  tft.setRotation(1);             // landscape
  tft.fillScreen(ST77XX_BLACK);
  tft.setTextColor(ST77XX_RED);
  tft.setTextSize(3);
  tft.setCursor(10, 30);
  tft.println("READY");
}

void loop() {
  // nothing – static screen
}
```
Heads up: The ST7735 driver has three hardware revisions (BLACKTAB, REDTAB, GREENTAB); using the wrong `initR()` constant will give a garbled or blank screen – double‑check the tab colour on your specific module before initializing.
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How Adafruit-ST7735-Library works
Codeflow
Free to inspect

Adafruit-ST7735-Library is a small C++ project (~1.3k lines across 8 code files). Setup is light: small project — see the README for how to run it. Last commit this month, no license file, has a test suite.

Size
Small codebase
~1.3k lines · 8 code files · 11 min skim
Setup
Light setup
Small project — see the README for how to run it.
Runs on
C++
No API keys detected
C++ 99%CMake 1%
Where to start reading
  1. 1
    README.txt
    Start here — what it does and how to install it
  2. 2
    examples/ST7796S_demo/ST7796S_demo.ino
    A worked example — copy this to get going
What's in each folder
examples/Examples you can copy29 files
.github/CI / automation (GitHub Actions)3 files
READMEHas testsDocumentedCI checksExamples includedNo licenseUpdated this month
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Details
Creator
adafruit
Language
C++
Category
ai-agent
Published
5/5/2011

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