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n2o/arduino_nano_esp32_oled.md

Last active June 29, 2024 12:07
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arduino_nano_esp32_oled.md
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oled.ino
/***************************************************
This is a example sketch demonstrating graphic drawing
capabilities of the SSD1351 library for the 1.5"
and 1.27" 16-bit Color OLEDs with SSD1351 driver chip
Pick one up today in the adafruit shop!
------> http://www.adafruit.com/products/1431
------> http://www.adafruit.com/products/1673
If you're using a 1.27" OLED, change SCREEN_HEIGHT to 96 instead of 128.
These displays use SPI to communicate, 4 or 5 pins are required to
interface
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
BSD license, all text above must be included in any redistribution
The Adafruit GFX Graphics core library is also required
https://github.com/adafruit/Adafruit-GFX-Library
Be sure to install it!
****************************************************/
// Screen dimensions
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 128 // Change this to 96 for 1.27" OLED.
// You can use any (4 or) 5 pins
#define SCLK_PIN 2
#define MOSI_PIN 3
#define DC_PIN 4
#define CS_PIN 5
#define RST_PIN 6
// Color definitions
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1351.h>
#include <SPI.h>
// Option 1: use any pins but a little slower
Adafruit_SSD1351 tft = Adafruit_SSD1351(SCREEN_WIDTH, SCREEN_HEIGHT, CS_PIN, DC_PIN, MOSI_PIN, SCLK_PIN, RST_PIN);
// Option 2: must use the hardware SPI pins
// (for UNO thats sclk = 13 and sid = 11) and pin 10 must be
// an output. This is much faster - also required if you want
// to use the microSD card (see the image drawing example)
//Adafruit_SSD1351 tft = Adafruit_SSD1351(SCREEN_WIDTH, SCREEN_HEIGHT, &SPI, CS_PIN, DC_PIN, RST_PIN);
float p = 3.1415926;
void setup(void) {
Serial.begin(9600);
tft.begin();
// 0 = no rotation, 1 = 90 degrees clockwise, 2 = degrees 180, 3 = 270 degrees
// tft.setRotation(1);
tft.fillScreen(BLACK);
testTriangles();
delay(1000);
// tft print function!
tftPrintTest();
delay(1000);
}
void loop() {
}
void testDrawText(char *text, uint16_t color) {
tft.setCursor(0,0);
tft.setTextColor(color);
tft.print(text);
}
void testTriangles() {
tft.fillScreen(BLACK);
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 tftPrintTest() {
tft.setCursor(0, 5);
tft.fillScreen(BLACK);
tft.setTextColor(WHITE);
tft.setTextSize(0);
tft.println("Hello World!");
tft.setTextSize(1);
tft.setTextColor(GREEN);
tft.print(p, 6);
tft.println(" Want pi?");
tft.println(" ");
tft.print(8675309, HEX); // print 8,675,309 out in HEX!
tft.println(" Print HEX!");
tft.println(" ");
tft.setTextColor(WHITE);
tft.println("Sketch has been");
tft.println("running for: ");
tft.setTextColor(MAGENTA);
tft.print(millis() / 1000);
tft.setTextColor(WHITE);
tft.print(" seconds.");
}
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