MINISMARTGPU - Intelligent Embedded Graphics Processor Unit

original image temporarily replaced pending review and consultation with author. apologies for poor image it was the best i could find on short notice. please contact m.shiloh@arduino.cc with questions

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Presentation:

This page presents a library to use a MINISMARTGPU intelligent embedded graphics processor with a color 1.8" screen from vizic technologies: http://www.vizictechnologies.com/#!mini-smartgpu/cx09

The LCD module features are:

  • 1.8" LCD capable of displaying 262,144 colors.
  • Easy 5 pin interface to any host device: VCC, TX, RX, GND, RESET.
  • On-board uSD/uSDHC memory card adaptor compatible with FAT(windows PC), Support up to 32GB for storing images and text.
  • Integrated File management/Data logger functions(Create, Read, Write, etc).
  • PWM controlled display brightness.
  • Sleep mode.
  • BaudRate speed up to 2Meg bps, 8 bits, no parity, 1 stop bit.
  • 5V and 3V3 I/O compatible,3V3 power supply.
  • Low-cost LCD display graphics user interface solution. Comprehensive set of built in high level graphics functions and algorithms that can draw lines, circles, text, and much more.
  • 8 different fonts and sizes.
  • compatible with any microcontroller(8051, pic, AVR, ARM, arduino, FPGAs,PC) and development boards with a UART.

MINISMARTGPU Images:

MINISMARTGPU explained

Comparison of processors loads:

MINISMARTGPU doesn’t need any configuration or programming on itself, it’s a slave device that only receives orders, reducing and facilitating dramatically the code size, complexity and processing load on your favorite main processor.

Connecting the MINISMARTGPU:

  • You will need to power the screen with 3.3V.
  • I/O pins for serial communication are 5V tolerant.
  • If you use an external power source, make sure the Arduino ground and external power ground are linked otherwise the serial commands will not be received correctly by the screen.
  • Use pin 13 of Arduino for reseting the screen(optional).

MINISMARTGPU Arduino Library:

  • You can import the MINISMARTGPU Arduino Library from HERE.
  • Once the folder is placed under "C:arduino-00XX\arduino-00XX\libraries\" and the Arduino IDE is re-started, just insert the:

#include <MINISMARTGPU.h>

in your main sketch and create the object:

MINISMARTGPU lcd; //Create the object

Example Code:

#include <MINISMARTGPU.h>     //include the MINISMARTGPU library!

MINISMARTGPU lcd;             //create our object called LCD

char message[]="Hello World";

void setup() { //initial setup
  //Those two functions must always be called for MINISMARTGPU support
  lcd.init();  //configure the serial and pinout of arduino board for MINISMARTGPU support
  lcd.start(); //initialize the MINISMARTGPU processor
}

void loop() { //main loop
  lcd.erase();                                         //erase screen
  lcd.putPixel(300,200,CYAN);                          //draw a pixel
  lcd.drawLine(50,50,150,100,WHITE);                   //draw a line
  lcd.drawRectangle(10,10,150,120,RED,UNFILL);         //draw a rectangle
  lcd.drawCircle(80,60,40,GREEN,UNFILL);               //draw a circle
  lcd.drawTriangle(15,15,150,120,180,70,BLUE,UNFILL);  //draw a triangle
  lcd.putLetter(100,100,MAGENTA,FONT3,TRANS,'E');      //write a single letter 'E'
  lcd.imageSD(0,0,"hydra160");                         //Open image "hydra160.bmp" stored on the microSD card
  lcd.string(10,10,159,127,YELLOW,FONT3,TRANS,"String test for MINISMARTGPU");  //write a string on the screen
  lcd.stringSD(5,50,159,127,MAGENTA,FONT3,TRANS,BEGINNING,ALLCONTENTS,"text1");  //call the text file "text1.txt" previously stored on the micro SD card
}

Videos:

Here are some videos of MINISMARTGPU + Arduino:

Arduino Tetris

Demos & Source Code:

All the Source Code of those videos, and many other examples could be downloaded from HERE.

Notes:

  • Images and microSD contents used on the examples could be downloaded from HERE.
  • Feel free to use the library!

MINISMARTGPU board:

  • The SMARTGPU board could be obtained from HERE.

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