Code:

#include <SPI.h>
#include <SSD_13XX.h>
/*
Teensy3.x and Arduino's
You are using 4 wire SPI here, so:
MOSI: 11//Teensy3.x/Arduino UNO (for MEGA/DUE refere to arduino site)
MISO: 12//Teensy3.x/Arduino UNO (for MEGA/DUE refere to arduino site)
SCK: 13//Teensy3.x/Arduino UNO (for MEGA/DUE refere to arduino site)
the rest of pin below:
*/
#define __CS1 10
#define __DC 9
/*
Teensy 3.x can use: 2,6,10,15,20,21,22,23
Arduino's 8 bit: anY
DUE: check arduino site
If you do not use reset, tie it to +3V3
ESP8266-----------------------------------
Use:
#define __CS 16 //(D0)
#define __DC 5 //(D1)
#define __RST 4 //(D2)
SCLK:D5
MOSI:D7
*/
SSD_13XX tft = SSD_13XX(__CS1, __DC);
float p = 3.1415926;
void testlines(uint16_t color) {
tft.clearScreen();
for (int16_t x = 0; x < tft.width() - 1; x += 6) {
tft.drawLine(0, 0, x, tft.height() - 1, color);
}
for (int16_t y = 0; y < tft.height() - 1; y += 6) {
tft.drawLine(0, 0, tft.width() - 1, y, color);
}
tft.clearScreen();
for (int16_t x = 0; x < tft.width() - 1; x += 6) {
tft.drawLine(tft.width() - 1, 0, x, tft.height() - 1, color);
}
for (int16_t y = 0; y < tft.height() - 1; y += 6) {
tft.drawLine(tft.width() - 1, 0, 0, y, color);
}
tft.clearScreen();
for (int16_t x = 0; x < tft.width() - 1; x += 6) {
tft.drawLine(0, tft.height() - 1, x, 0, color);
}
for (int16_t y = 0; y < tft.height() - 1; y += 6) {
tft.drawLine(0, tft.height() - 1, tft.width() - 1, y, color);
}
tft.clearScreen();
for (int16_t x = 0; x < tft.width() - 1; x += 6) {
tft.drawLine(tft.width() - 1, tft.height() - 1, x, 0, color);
}
for (int16_t y = 0; y < tft.height() - 1; y += 6) {
tft.drawLine(tft.width() - 1, tft.height() - 1, 0, y, color);
}
delay(500);
}
void testdrawtext(char *text, uint16_t color) {
tft.setTextScale(1);
tft.setTextColor(WHITE);
tft.setCursor(0, 0);
for (uint8_t i = 0; i < 168; i++) {
if (i == '\n') continue;
tft.write(i);
if ((i > 0) && (i % 21 == 0))
tft.println();
}
}
void testfastlines(uint16_t color1, uint16_t color2) {
tft.clearScreen();
for (int16_t y = 0; y < tft.height() - 1; y += 5) {
tft.drawFastHLine(0, y, tft.width() - 1, color1);
}
for (int16_t x = 0; x < tft.width() - 1; x += 5) {
tft.drawFastVLine(x, 0, tft.height() - 1, color2);
}
}
void testdrawrects(uint16_t color) {
tft.clearScreen();
for (int16_t x = 0; x < tft.height() - 1; x += 6) {
tft.drawRect((tft.width() - 1) / 2 - x / 2, (tft.height() - 1) / 2 - x / 2, x, x, color);
}
}
void testfillrects(uint16_t color1, uint16_t color2) {
tft.clearScreen();
for (int16_t x = tft.height() - 1; x > 6; x -= 6) {
tft.fillRect((tft.width() - 1) / 2 - x / 2, (tft.height() - 1) / 2 - x / 2, x, x, color1);
tft.drawRect((tft.width() - 1) / 2 - x / 2, (tft.height() - 1) / 2 - x / 2, x, x, color2);
}
}
void testfillcircles(uint8_t radius, uint16_t color) {
for (uint8_t x = radius; x < tft.width() - 1; x += radius * 2) {
for (uint8_t y = radius; y < tft.height() - 1; y += radius * 2) {
tft.fillCircle(x, y, radius, color);
}
}
}
void testdrawcircles(uint8_t radius, uint16_t color) {
for (int16_t x = 0; x < (tft.width() - 1) + radius; x += radius * 2) {
for (int16_t y = 0; y < (tft.height()) - 1 + radius; y += radius * 2) {
tft.drawCircle(x, y, radius, color);
}
}
}
void testtriangles() {
tft.clearScreen();
int color = 0xF800;
int t;
int w = tft.width() / 2;
int x = tft.height();
int y = 0;
int z = tft.width();
for (t = 0; t <= 15; t += 1) {
tft.drawTriangle(w, y, y, x, z, x, color);
x -= 4;
y += 4;
z -= 4;
color += 100;
}
}
void testroundrects() {
tft.clearScreen();
int color = 100;
int i;
int t;
for (t = 0; t <= 4; t += 1) {
int x = 0;
int y = 0;
int w = tft.width();
int h = tft.height();
for (i = 0; i <= 24; i += 1) {
tft.drawRoundRect(x, y, w, h, 5, color);
x += 2;
y += 3;
w -= 4;
h -= 6;
color += 1100;
}
color += 100;
}
}
void tftPrintTest() {
tft.clearScreen();
tft.setCursor(0, 5);
tft.setTextColor(RED);
tft.setTextScale(1);
tft.println("Hello World!");
tft.setTextColor(YELLOW, GREEN);
tft.setTextScale(2);
tft.print("Hello Wo");
tft.setTextColor(BLUE);
tft.setTextScale(3);
tft.print(12.57);
delay(1500);
tft.setCursor(0, 5);
tft.clearScreen();
tft.setTextColor(WHITE);
tft.setTextScale(0);
tft.println("Hello World!");
tft.setTextScale(1);
tft.setTextColor(GREEN);
tft.print(p, 5);
tft.println(" Want pi?");
tft.print(8675309, HEX);
tft.print(" Print HEX");
tft.setTextColor(WHITE);
tft.println("Sketch has been");
tft.println("running for: ");
tft.setTextColor(MAGENTA);
tft.print(millis() / 1000);
tft.setTextColor(WHITE);
tft.print(" sec.");
}
void randomRect(bool fill) {
tft.clearScreen();
uint8_t k, c;
for (k = 0; k < 16; k++) {
for (c = 0; c < 32; c++) {
uint8_t cx, cy, x, y, w, h;
// center
cx = random(0, tft.width());
cy = random(0, tft.height());
// size
w = random(0, 30 + 6);
h = random(0, 20 + 4);
// upper-left
x = cx - w / 2;
y = cy - h / 2;
if (x < 0) x = 0;
if (y < 0) y = 0;
// adjust size
if (x + w > tft.width()) w = tft.width() - x;
if (y + h > tft.height()) h = tft.height() - y;
if (fill) {
tft.fillRect(x, y, w, h, random(0x0010, 0xFFFF));
}
else {
tft.drawRect(x, y, w, h, random(0x0010, 0xFFFF));
}
}
tft.clearScreen();
}
}
void randomCircles(bool fill) {
tft.clearScreen();
uint8_t k, c;
for (k = 0; k < tft.height(); k++) {
for (c = 0; c < tft.height() / 2; c++) {
// coordinates
uint8_t x = random(0, 120 + 3), y = random(0, 90 + 2), r = random(0, 40 + 1);
if (x - r < 0) r = x;
if (x + r >(tft.width() - 1)) r = (tft.width() - 1) - x;
if (y - r < 0) r = y;
if (y + r >(tft.height() - 1)) r = (tft.height() - 1) - y;
if (fill) {
tft.fillCircle(x, y, r, random(0x0010, 0xFFFF));
}
else {
tft.drawCircle(x, y, r, random(0x0010, 0xFFFF));
}
}
if (!fill)tft.clearScreen();
}
}
void randomLines() {
tft.clearScreen();
uint8_t k, c;
for (k = 0; k < tft.height(); k++) {
for (c = 0; c < tft.height() / 2; c++) {
uint8_t x1 = random(0, tft.width()), y1 = random(0, tft.height()), x2 = random(0, tft.width()), y2 = random(0, tft.height());
tft.drawLine(x1, y1, x2, y2, random(0x0010, 0xFFFF));
}
tft.clearScreen();
}
}
void randomPoints() {
tft.clearScreen();
int k, c;
for (k = 0; k < 128; k++) {
for (c = 0; c < 1000; c++) {
uint8_t x = random(0, tft.width()), y = random(0, tft.height());
tft.drawPixel(x, y, random(0x0010, 0xFFFF));
}
tft.clearScreen();
}
}
void setup(void) {
tft.begin();
SPI.beginTransaction(SPISettings(1200000, MSBFIRST, SPI_MODE0));
uint16_t time = millis();
time = millis() - time;
// lcdTestPattern();
// delay(1000);
tft.clearScreen();
tft.setCursor(0,0);
tft.print("Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur adipiscing ante sed nibh tincidunt feugiat. Maecenas enim massa");
delay(1000);
tftPrintTest();
delay(2000);
//a single pixel
tft.drawPixel(tft.width()/2, tft.height()/2, GREEN);
delay(500);
// line draw test
testlines(YELLOW);
delay(500);
// optimized lines
testfastlines(RED, BLUE);
delay(500);
testdrawrects(GREEN);
delay(1000);
testfillrects(BLUE, YELLOW);
delay(1000);
randomRect(0);
delay(100);
randomCircles(0);
delay(100);
randomLines();
delay(100);
randomPoints();
delay(500);
tft.clearScreen();
testfillcircles(10, BLUE);
testdrawcircles(10, WHITE);
delay(1000);
testroundrects();
delay(500);
testtriangles();
delay(500);
}
void loop() {
testlines(random(0x0010,0xFFFF));
randomLines();
//randomCircles(1);
randomCircles(0);
randomRect(1);
randomRect(1);
randomRect(1);
randomRect(1);
randomRect(1);
randomRect(0);
randomRect(0);
randomRect(0);
randomRect(0);
randomRect(0);
randomRect(0);
randomPoints();
}