https://github.com/jw3/example-particle-st7789

Particle Gen 3 with ST7789 TFT LCD over SPI
https://github.com/jw3/example-particle-st7789

cmake conan lcd-display particle

Last synced: 4 months ago
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Particle Gen 3 with ST7789 TFT LCD over SPI

• Host: GitHub
• URL: https://github.com/jw3/example-particle-st7789
• Owner: jw3
• Created: 2021-02-23T11:38:56.000Z (almost 4 years ago)
• Default Branch: master
• Last Pushed: 2021-03-02T03:26:20.000Z (almost 4 years ago)
• Last Synced: 2024-10-02T10:02:10.522Z (4 months ago)
• Topics: cmake, conan, lcd-display, particle
• Language: C
• Homepage:
• Size: 911 KB
• Stars: 6
• Watchers: 2
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
Particle ST7789 example

===

### screen

MakerFocus TFT LCD Screen Display 1.3inch TFT LCD Module, 240240 IPS 65K Full Color 3.3V with SPI Interface ST7789 IC Driver

https://www.amazon.com/gp/product/B07P9X3L7M

- 240x240

- No chip select

- 3.3v

### board

Particle 3rd gen

### pins

|screen|particle|

|:----:|:------:|

|SDA | MO|

|SCL | SCK|

|RES | D6|

|DC  | D5|

|VCC | 3.3|

|GND | GND|

### driver

- [Adafruit ST7789 library](https://www.arduino.cc/reference/en/libraries/adafruit-st7735-and-st7789-library/)

- [Adafruit GFX v1.10.3](https://github.com/adafruit/Adafruit-GFX-Library)

- with Conan https://github.com/hicktech/conan-AdafruitGFX

### conan

`PLATFORM=xenon VERSION_STRING=1.4.2 conan install . -if cmake-build-debug -s compiler.version=5.3 -s os=Particle -s os.board=xenon -s arch=nRF52840 -s compiler.libcxx=libstdc++11`

### build

```

arm-none-eabi-size --format=berkeley src.elf

   text	   data	    bss	    dec	    hex	filename

  26888	    108	   1188	  28184	   6e18	src.elf

```

### flash

`./cmake-build-debug/flash src usb`

### notes

The product page [says to modify `Adafruit_SPITFT.cpp`](doc/img.png) but this is likely referenced from an older version of the library.

It can be set with the init call, see `setup()` in the call to `tft.init`

`tft.init(240, 240, SPI_MODE3);`

The product page also says connect to 5v but it appears to run fine from 3.3v.