esp32 spi OLED 돌리기

esp32 spi OLED 돌리기

 

Esp32 Dev 에 SPI OLED 를 연결했다.

 

H/W 연결을 위해 보드 pin map 을 정했다.

 

 

위 pin map 을 아래와 같이 연결 했다.

 

 

참고 : 내부의 정의된 pin map

 

static const uint8_t SS    = 5; static const uint8_t MOSI  = 23; static const uint8_t MISO  = 19; static const uint8_t SCK   = 18;

 

사용된 SOURCE

 

#include "Arduino.h" #include <Wire.h> #include <SPI.h> #include <Adafruit_GFX.h> #include <Adafruit_SSD1306.h>   //PIN define #define OLED_PCLK     18 #define OLED_PDATA    23 #define OLED_PRESET   17 #define OLED_PCMD     16 #define OLED_PCS     5 #define LED 2   //Graphic define #define NUMFLAKES 10 #define XPOS 0 #define YPOS 1 #define DELTAY 2 #define LOGO16_GLCD_HEIGHT 16 #define LOGO16_GLCD_WIDTH  16 static const unsigned char PROGMEM logo16_glcd_bmp[] = { B00000000, B11000000,   B00000001, B11000000,   B00000001, B11000000,   B00000011, B11100000,   B11110011, B11100000,   B11111110, B11111000,   B01111110, B11111111,   B00110011, B10011111,   B00011111, B11111100,   B00001101, B01110000,   B00011011, B10100000,   B00111111, B11100000,   B00111111, B11110000,   B01111100, B11110000,   B01110000, B01110000,   B00000000, B00110000 }; //SW SPI : (MOSI, CLK, DC, RESET, CS) //Adafruit_SSD1306 display(OLED_PDATA, OLED_PCLK, OLED_PCMD, OLED_PRESET, OLED_PCS);   //HW SPI : (DC, RST, CS) Adafruit_SSD1306 display(OLED_PCMD, OLED_PRESET, OLED_PCS);    //The setup function is called once at startup of the sketch void setup() {  // Add your initialization code here  pinMode(LED, OUTPUT);  Serial.begin(115200);  delay(10);    // display.begin(SSD1306_SWITCHCAPVCC, 0x3D); //I2C  display.begin(SSD1306_SWITCHCAPVCC); //SPI  display.display();  //diplay output  delay(2000);  display.clearDisplay(); // Clear the buffer.    Serial.println("Start.."); }     // The loop function is called in an endless loop void loop() {  //Add your repeated code here  digitalWrite(LED, 1);  delay(1000);  Serial.println("LED OFF");  digitalWrite(LED, 0);  delay(1000);  Serial.println("LED ON"); }