Basic Arduino EVE Demo

[Henry]

Basic EVE Arduino UNO Example Code

Written for an EVE2 or EVE3 or EVE4 running on an Arduino UNO.

Code is located on GitHub
https://github.com/MatrixOrbital/EVE-Basic-Demo-Arduino

This code when executed will display MATRIX ORBITAL text and a circle switching between blue and red.

Basic-EVE-Demo-2.jpg (113.45 KiB) Viewed 7672 times

This code will illustrate:

• EVE initilization

• Set colour

• Draw circle

• Write text

please note, this example does not utilize touch

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Hardware Requirements

Designed for Matrix Orbital EVE2/3/4 SPI TFT Displays
https://www.matrixorbital.com/ftdi-eve

EVE.png (246.54 KiB) Viewed 9509 times

Scoodo EVE TFT SHIELD for Arduino
https://www.matrixorbital.com/eve2-shield

scoodo.jpg (96.25 KiB) Viewed 9509 times

LIBRARY

This code makes use of the Matrix Orbital EVE2 Library found here:

https://github.com/MatrixOrbital/EVE2-Library

While a copy of the library files (Eve2_81x.c and Eve2_81x.h) is included here, it will not be updated. For the most up to date files please use the files from the link above.

EVE SPI TFT connected to a Scoodo SHIELD

Arduino_EVE_800x.jpg (181.76 KiB) Viewed 9514 times

Support Forums

http://www.lcdforums.com/forums/viewforum.php?f=45

[prestonpressure]

The library found here: https://github.com/MatrixOrbital/EVE2-Library does not provide for a very basic function of changing the line width. The functions listed below are located in the Eve2_81x.h file, but there is no way that I can find to change the line width. There is a LINE_WIDTH command in Section 4.32 of the Programmers Guide, but I do not find this in the library. Is there another way to change the width of a line?

// Primitive Type Reference Definitions - FT81x Series Programmers Guide Section 4.5 - Table 6
#define BITMAPS 1
#define POINTS 2
#define LINES 3
#define LINE_STRIP 4
#define EDGE_STRIP_R 5
#define EDGE_STRIP_L 6
#define EDGE_STRIP_A 7
#define EDGE_STRIP_B 8
#define RECTS 9

[Ray]

you can find the definition for line width over here

https://github.com/MatrixOrbital/EVE2-L ... 81x.h#L365

[prestonpressure]

Thank you! Apparently I had an older version of this library.